NHTSA ID Number: 10191589
Manufacturer Communication Number: Subaru
Tech Tips
TSB/Document Date: 2021-05-04
Summary
Article Locator Index.
ECVT Trouble Code 31 ..................................................................................................................................04/94
ECVT - Select Monitor Speed Sensor Reading ............................................................................................04/94
Impreza Headlights .......................................................................................................................................04/94
Legacy Fuel System Wiring Diagram ............................................................................................................05/94
Impreza Fuel Tank Sending Unit Specifications ............................................................................................05/94
1995MY Legacy Electrical Component Location Quick Reference List ....................................................... 07/94
Legacy Fuel System Wiring Diagram ............................................................................................................08/94
SVX Spark Plug Servicing .............................................................................................................................09/94
Ignition Relays ...............................................................................................................................................10/94
Ignition Relays - The Sequel .........................................................................................................................10/94
1995MY Legacy Speed Limiting Device ....................................................................................................... 11/94
SPI Trouble Code 13 (Crank Angle Sensor) From ECU ................................................................................. 11/94
OBD II Check Engine Light ............................................................................................................................12/94
Speed Sensor 2 .............................................................................................................................................01/95
1994MY Legacy Seat Heaters .......................................................................................................................01/95
Cold Shift Locks (Impreza Shift Locks That Won’t Unlock When Cold) .......................................................02/95
1985MY & Later L-Series MPFI Improper Engine Operation above 2000 RPM ............................................03/95
Battery Replacement ....................................................................................................................................03/95
Electrical Diagnosis, the Helpline, & You .......................................................................................................04/95
TechTIPS Article Locator Edition
Page 22 of 55
07-Electrical
Battery Charging ...........................................................................................................................................05/95
Electrical Condition Reporting ......................................................................................................................06/95
ROM Installation ............................................................................................................................................08/95
1 Mw Min. ......................................................................................................................................................09/95
1996MY Subaru Legacy Outback Fog Lamps ..............................................................................................10/95
1995MY Subaru Legacy Outback Rear Power Outlet ................................................................................... 11/95
Identification of Cam and Crank Sensors ..................................................................................................... 07/96
1995MY/96MY Subaru Legacy Blows Fuse SBF-2 ....................................................................................... 07/96
1997MY Legacy Power Door Lock System ...................................................................................................09/96
Sticking or Difficult Auto Down P/W Switch Buttons (Mistakenly Printed In Section 11) ..............................10/96
Diagnostic Trouble Code P0341 ....................................................................................................................10/96
Loose Window Regulators ............................................................................................................................10/96
Rear Defogger Timer .....................................................................................................................................03/97
Legacy Heater Control Panel Bulbs ..............................................................................................................03/97
‘98MY Forester Transit Connector Location .................................................................................................08/97
‘98MY Forester Trailer Hitch Wiring Harness ................................................................................................08/97
‘95MY-‘97MY Legacy Moisture Accumulation in the Headlights ..................................................................04/98
2000MY Legacy Battery ................................................................................................................................09/99
Wiring Harness Connector I5 ........................................................................................................................09/99
Electrical Problems? Check The Alternator. ................................................................................................. 11/99
2000MY Legacy Blows Fuse #5.....................................................................................................................01/00
2000MY Subaru Legacy Turn Signal Operation.............................................................................................02/00
2000MY Legacy & Outback Vehicles Fog Light Operation............................................................................04/00
Grounds, Grounds, Grounds.......................................................................................................................... 07/00
Daytime Running Lights.................................................................................................................................08/00
Windshield Wiper Deicer System not Working.............................................................................................. 11/00
Turn Signals Flashing Rapidly........................................................................................................................ 11/00
Blower Motor Resistor Repairs...................................................................................................................... 01/01
In-Dash Cigarette Lighter Usage....................................................................................................................06/01
Alternator Supplier Update.............................................................................................................................08/01
Legacy Transit (D-check plug) Connectors.............................................................................................. 03-04/02
Fuse 4 Blows-Out..................................................................................................................................... 03-04/02
Legacy Rear Wiper Operation.................................................................................................................. 03-04/02
2005MY Legacy/Outback Trailer Hitch Harness Location............................................................................. 07/05
Backup Power Supply Fuse...........................................................................................................................10/05
2005MY Forester Diagnostic Connector........................................................................................................ 11/04
2005MY Legacy/Outback Electrical Diagnosis..............................................................................................02/05
Body Integrated Unit (BIU) Replacement.......................................................................................................03/05
Fuse Label Correction....................................................................................................................................03/05
HVAC & Audio Unit Inoperative After Wiring Harness Change......................................................................04/05
2005MY Baja with Poor Radio Reception......................................................................................................04/05
HVAC Inoperative After Wiring Harness Change—More Information............................................................05/05
2003MY Forester Fuse Information................................................................................................................08/05
Battery Going Dead or Alarm Going Off........................................................................................................09/05
Information Requested For Harness Repair Kits........................................................................................... 11/05
2006MY Legacy/Outback and B9 Tribeca Combination Meter Self Diagnosis.............................................02/06
Change of Seat Heater Relay.........................................................................................................................02/06
Low Battery Voltage.......................................................................................................................................06/06
2005MY Forester A/F & O2 Sensor Relay Location.......................................................................................06/06
SBF-5 Fuse Blows On 2005 MY / 2006 MY Impreza Vehicles....................................................................... 07/06
“Dark Current” Or Excessive Battery Draw....................................................................................................02/07
Erratic Tail Light Operation.............................................................................................................................04/07
TechTIPS Article Locator Edition
Page 23 of 55
07-Electrical
More “Dark Current” Information...................................................................................................................04/07
Headlight Bulb Replacements –A Reminder..................................................................................................05/07
New Style 2008 MY Legacy, Outback & Tribeca Keys...................................................................................06/07
Midtronics inTELLECT EXP Battery Tester Logic Update..............................................................................06/07
Headlight Bulb Socket Repairs...................................................................................................................... 07/07
2008 MY High Security Keys.........................................................................................................................08/07
2008MY Impreza Headlight Switch Operation...............................................................................................09/07
2008 Impreza Stop Light Switch C0074 and C0054...................................................................................... 01/08
BIU Replacement and Keys...........................................................................................................................05/08
2008 Impreza Data Link Connector Color Change........................................................................................06/08
Legacy & Outback Door Switch (Nov 2004 production & after).....................................................................06/08
Wiring Harness Connector Similarities & Cautions........................................................................................ 07/08
Forester Sunroof Reverses When Closing.....................................................................................................12/08
2008-09 Impreza, Erratic Outside Temperature Gauge Operation................................................................01/09
Door & Ignition Lock Cylinder Replacement Clarification..............................................................................02/09
2009 M/Y Forester Power Window Information.............................................................................................03/09
Power Door Locks Inoperative, 2009 M/Y Forester.......................................................................................04/09
“Dark Current” ….Revisited............................................................................................................................06/09
2010 M/Y Legacy & Outback Auto Up / Down Feature Operation.................................................................08/09
Speedometer Inoperative? Don’t Overlook the Sunroof Wiring....................................................................08/09
2010 M/Y Legacy & Outback Low-Beam Bulb Replacement........................................................................08/09
2010 M/Y Legacy & Outback Headlight Bulb Replacement Information.......................................................09/09
2010 M/Y Legacy & Outback Power Window Operation...............................................................................10/09
Re-Coding Laser-Cut Keys............................................................................................................................ 01/10
2010 M/Y Legacy & Outback Oil Level Warning Information.........................................................................02/10
2010 M/Y Legacy & Outback BIU Interchangeability.....................................................................................02/10
2010 M/Y Forester “Resonating” Noise When Using the Horn......................................................................03/10
2010 M/Y Forester Dome Light Erratic Operation..........................................................................................05/10
2010 and 2011 Driver’s AUTO-UP Reset Information..................................................................................... 10/10
2008 – 2011 Impreza Front Turn Signals Blink Too Fast................................................................................ 01/11
Remote Trunk Release Inoperative After BIU Replacement.......................................................................... 05/11
2008 M/Y and Later Impreza Stop Light Switch Information......................................................................... 05/11
Sunroof Operation Service Bulletins.............................................................................................................. 05/11
New DTC’s After Bulkhead Harness Replacement........................................................................................ 06/11
CAN System Diagnostic Information.............................................................................................................. 07/11
Immobilizer Codes Stored, Engine Starts and Stalls Condition..................................................................... 08/11
2011 M/Y Impreza High Beams Not Bright Enough?..................................................................................... 10/11
Headlight Aiming Precautions.........................................................................................................................11/11
Tom-Tom Equipped Volume Control Information........................................................................................... 12/11
2012 M/Y Impreza No Start, SBF-6 Blown.................................................................................................... 01/12
2012 Impreza Key Information........................................................................................................................03/12
Sunroofs and Car Washes.............................................................................................................................04/12
Battery Testing, the Importance of Using the Right Standard.......................................................................04/12
Re-Programming Information for All 2011-12 M/Y Vehicles........................................................................... 05/12
2013 BRZ Auto Up/Down Window Feature.................................................................................................... 09/12
Hard To Fill Fuel Tank..................................................................................................................................... 09/12
Eyesight Camera Adjustment......................................................................................................................... 10/12
13 MY Legacy And Outback Accessory Charging......................................................................................... 11/12
Electrical Devices And Air Bag Systems........................................................................................................ 12/12
14 MY Forester Turbo Battery Cable Precaution/ DTC P0606.......................................................................02/13
Appearance of Water in BRZ Back Up Light..................................................................................................03/13
Memory Height Learning Procedure..............................................................................................................04/13
TechTIPS Article Locator Edition
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07-Electrical
Erratic Digital Fuel Gauge Operation, 2012 My and Later Impreza, BRZ, and 2014 Forester........................04/13
Immobilizer/ Key Registration Information.....................................................................................................04/13
2014 Forester Information Display Selection Knob( or the Right Side or Other Trip Knob)...........................04/13
Campaign WQF-42 Information.....................................................................................................................05/13
Fuel Gauge Diagnostic’s................................................................................................................................05/13
2014 Forester Turbo, ECM Electrical Testing Reminder.................................................................................06/13
2014 Forester Power Rear Gate (PRG) Initialization Procedure.....................................................................06/13
2014 Forester Non-Turbo ECM And BIU Locations........................................................................................06/13
2014 Forester L/F Power Window auto up/down operation...........................................................................08/13
HVAC Electrical Connections......................................................................................................................... 09/13
BIU Replacement on all Push-button Start Vehicles..................................................................................... 10/13
2014 Forester Seat heater Operation and Switch Functions.......................................................................... 11/13
Headlight Adjustment Reminders.................................................................................................................. 11/13
ODS Code 29 or 37, Electrical Devices and Air Bags revisted....................................................................... 12/13
Appearance of Water Droplets in BRZ Exterior Lamps................................................................................. 01/14
Important Hybrid Vehicle Aux Battery Precautions........................................................................................ 01/14
Operation of SI-Drive, Sport Sharp(S+) Mode after Cold Start......................................................................02/14
Midtronics GR8Use During Control unit Programming..................................................................................02/14
2010-14 Legacy& Outback Fuse # 16 Failed in the Main Fuse Box............................................................... 03/14
DTC P0724, Brake Switch Circuit High Input................................................................................................. 03/14
Passenger Side Power Window Auto Up/Down Function.............................................................................. 08/14
2015 Legacy/Outback Power Window Auto Up/Down Operation Revisited ................................................. 09/14
2015MY Legacy and Outback Under Hood Main Fuse Box (M/B) Information............................................ 09/14
2015 Legacy and Outback Cold Weather Light Operation............................................................................ 10/14
2015 Legacy and Outback Under-Hood Main Fuse Box (M/B) Information................................................... 10/14
2015 Legacy and Outback Keyhole Shadow From Projector Beam Headlamp............................................. 10/14
Dark Current Draw Revisited.......................................................................................................................... 11/14
Bluetooth Pre-Call Worksheet........................................................................................................................ 11/14
2015 Legacy/Outback Unnecessary Power Window Switch Replacements................................................. 12/14
Body Integrated Unit (BIU) Replacement/ Interior Lights Flashing................................................................ 01/15
Identifying Electrical Harness Connectors.....................................................................................................04/15
Electrical Diagnosis and Aftermarket Equipment...........................................................................................04/15
DTC Diagnosis and Related Wiring Harness Checks.....................................................................................05/15
2010-2016 Forester TPMS light flashing, Sensor Registration Issues........................................................... 09/15
Spark Plug Information a Reminder...............................................................................................................03/16
Battery Servicing Precautions........................................................................................................................03/16
GR-8 1100 EST Battery Diagnostic Station, Power Supply Mode.................................................................05/16
No Crank No Start Diagnosis.........................................................................................................................06/16
Blue-Tooth Pre-call Worksheet...................................................................................................................... 07/16
Ignition Key Cannot Be Removed From Ignition Switch................................................................................ 10/16
Quick Reference Immobilizer Type................................................................................................................. 10/16
Replacing B-Type BIU.................................................................................................................................... 10/16
Fuel Gauge Diagnosis Revisited..................................................................................................................... 11/16
Power Window erratic, cannot program memory.......................................................................................... 01/17
No Hybrid Auto Start Stop or Ev Travel.......................................................................................................... 01/17
BIU replacement............................................................................................................................................ 01/17
Satellite Signal Lost When Traveling South 2014-UP Forester....................................................................... 02/17
PAK file error messages................................................................................................................................. 05/17
B1650 Proper Diagnosis................................................................................................................................. 06/17
Blind Spot Detection Off................................................................................................................................ 01/18
Ground Circuit Identification..........................................................................................................................03/18
No Hybrid Auto Start Stop or EV Travel.........................................................................................................03/18
TechTIPS Article Locator Edition
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07-Electrical
ECM Reprogramming.....................................................................................................................................05/18
Audio Unit Service/Diagnostic Menu.............................................................................................................06/18
Quick Reference Immobilizer Type.................................................................................................................08/18
Replacing B-Type BIU....................................................................................................................................08/18
Ascent Automatic Wiper Rain Sensor Initialization........................................................................................ 10/18
2019MY Forester, Driver Monitoring System (DMS) Inoperative.................................................................... 11/18
2019MY Forester, Loose Negative Battery Cable/Terminal Connections...................................................... 11/18
Performing Variant Work When Replacing Combination Meter..................................................................... 12/18
Automatic Start-Stop System Enable Conditions.......................................................................................... 12/18
2019MY Forester, Driver Monitoring System (DMS) Inoperative *UPDATE*................................................... 01/19
Gen 3 Clock Related Concern.......................................................................................................................02/19
2018 – 19MY Legacy & Outback – B1650......................................................................................................02/19
2019MY Forester- Rear Seat Heaters Inoperative..........................................................................................03/19
2019MY Forester- Automatic Seat Retraction Feature Operation..................................................................03/19
Electrical Diagnosis and Aftermarket Equipment...........................................................................................03/19
2019MY Forester, Driver Monitoring System (DMS) Inoperative B2632 B2642.............................................04/19
Hill Start Assist Lamp Illuminated Without Associated DTCs or Customer’s Concern..................................04/19
2019MY Forester Manual Override for Power Rear Gate...............................................................................05/19
2019MY WRX, Telematics “i” Button Sticking................................................................................................05/19
Identical Electrical Connectors......................................................................................................................06/19
2019 Forester Door Mirror Reverse Tilt-Down Feature...................................................................................06/19
2020MY Legacy & Outback, DTCs B2259, B2244, B282C, & B2C22............................................................ 11/19
Midtronics DSS-5000 and DCA-8000 Tips and Tricks.................................................................................. 12/19
Mirror Tilt Inoperative..................................................................................................................................... 01/20
Revised Ascent Sunroof Glass (Lid) and Sun Shade Initialization Procedures.............................................. 01/20
Change of Length of ECM Calibration ID (CID) Numbers.............................................................................. 01/20
2019MY and up Forester MFD Displays Incorrect Vehicle Angle...................................................................02/20
Ascent Sunroof and Sunshade Motors..........................................................................................................02/20
Power Rear Gate (PRG) Inoperative with Ignition ON and / or Engine Running.............................................02/20
Flashing Lights on Rain Sensor Equipped Vehicles.......................................................................................03/20
Heated Seat Operation...................................................................................................................................03/20
Parasitic Draw (Dark Current) Testing and Telematics DCM..........................................................................05/20
Replacing B/G-Type BIU................................................................................................................................09/20
G and H Type Immobilizer Registration ......................................................................................................... 10/20
Identical Electrical Connectors...................................................................................................................... 10/20
Electrical Connector & Pin Discrepancy ....................................................................................................... 11/20
TechTIPS Article Locator Edition
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08-Instrument & Controls
08-Instrument & Controls
High Reading Temperature Gauge, Digital Dash 85MY & 86MY “L” Series, Including XT ............................08/91
L-Series Speed Sensor Replacement ...........................................................................................................02/92
1992MY Legacy FWD Modified Fuel Tank Sender Unit ................................................................................09/92
Corrections to Previous Helpline Updates .................................................................................................... 11/92
Odometer Labels ...........................................................................................................................................02/93
Legacy Knock Sensor Testing .......................................................................................................................03/93
Legacy All Wheel Drive Fuel Gauge ..............................................................................................................04/93
Impreza Combination Meter Tachometer ......................................................................................................05/93
Legacy Postal Vehicles with Single Action Power Door Locks ..................................................................... 11/93
Speedometer Inaccuracies ...........................................................................................................................01/95
Warning Light Operation ...............................................................................................................................02/95
Legacy and Impreza Fuel Tank Sending Units ..............................................................................................05/95
Instrument Cluster Circuit Boards .................................................................................................................10/96
Fuel Gauges on “E” .......................................................................................................................................10/96
1998MY Subaru Forester/Impreza Digital Odometer ....................................................................................09/97
Odometer Policy.............................................................................................................................................02/01
Ambient Temperature Sensor........................................................................................................................04/04
SI-Drive Multi-Information Clock Display Characteristics..............................................................................04/08
2010 M/Y Legacy & Outback Clock Setting Procedure.................................................................................08/09
Adjusting the Clock and Settings of the Multi-Function Display....................................................................05/10
Shift Indicator Light Applicability, 2012M/Y Impreza.....................................................................................04/12
BRZ Trunk Release Operation........................................................................................................................ 07/12
Navigation Screen Displaying The Language Menu..................................................................................... 11/12
2014 Forester Multi Function Display Messages............................................................................................08/13
2015MY Legacy/Outback, Journey Time Alert on Combination Meter Tell tail Display................................. 09/15
Resetting Applied Model & Option Codes for Combination Meters.............................................................. 12/19
Combination Meter Settings: Kilometers to Miles..........................................................................................05/20
Reading and Writing of the ECU Configuration and Odometer Value Clarification........................................06/20
TechTIPS Article Locator Edition
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09-Cooling, Fuel, & Exhaust System
09-Cooling, Fuel, & Exhaust System
Justy FWD-ECVT Noise from Exhaust Pipe Joint .........................................................................................05/91
Legacy 4EAT Radiators .................................................................................................................................02/92
Subaru Exhaust Systems ..............................................................................................................................04/92
1992MY SIA Models Production Fuel Filter ...................................................................................................05/92
Legacy Exhaust Whistle Turbo & Naturally Aspirated ...................................................................................06/92
1992MY Legacy FWD Modified Fuel Tank Sender Unit ................................................................................09/92
Corrections to Previous Helpline Updates .................................................................................................... 11/92
Coolant Recycling .........................................................................................................................................06/93
Summer Low RVP Fuels ................................................................................................................................06/94
Fuel Quality Check ........................................................................................................................................06/94
Fuel Switching ...............................................................................................................................................09/94
Impreza Fuel Tank Sending Unit Assemblies ................................................................................................09/94
Impreza Fuel Tank Capacity ..........................................................................................................................10/94
Replacing Loyale Thermostats ...................................................................................................................... 11/94
2.2L Impreza AWD Fuel Senders ..................................................................................................................04/95
Reformulated Gasoline ..................................................................................................................................05/95
Loyale Water Pump Leaks ............................................................................................................................. 07/95
Modified Fuel Injectors ..................................................................................................................................10/96
Cooling Fan Operation ..................................................................................................................................09/97
1999MY Legacy Excessive Crank Time ........................................................................................................03/99
Vehicle Won’t Take Fuel .................................................................................................................................03/99
Vehicles That Won’t Take Fuel .......................................................................................................................09/99
Fuel System Quick Connector ......................................................................................................................10/99
Don’t Touch That Screw! ...............................................................................................................................01/00
Sulfur Smell from the Exhaust .......................................................................................................................05/00
Use of Genuine Air Cleaner Element.............................................................................................................. 11/00
H-6 Extended Crank Time....................................................................................................................... 01-02/02
Forester Fuel Line Noise............................................................................................................................09-10/02
WRX STi Driveability.......................................................................................................................................08/03
2004MY Legacy Fuel Filter Replacement......................................................................................................09/03
H6 Drivability.................................................................................................................................................. 11/03
New Product Orientation for the Cooling System Conditioner......................................................................04/04
2004MY Legacy/Outback H-6 and H-4 (NA) Fuel Line Removal...................................................................05/04
2005MY Legacy Fuel Line Rattle................................................................................................................... 11/04
Fuel Order in Cold Weather (Service Bulletin Reminder)............................................................................... 11/04
Fuel Line Tool.................................................................................................................................................12/04
Gas Mileage...................................................................................................................................................03/05
Fuel Hose Retainer Clips................................................................................................................................06/05
B9 Tribeca Fuel Line Tool...............................................................................................................................04/06
Subaru Vehicles and Driveability....................................................................................................................09/06
STI Models Fuel Recommendation................................................................................................................ 11/06
Fuel Odor on Initial Cold Starts......................................................................................................................02/07
Engine Cooling System Service & Care Recommendations..........................................................................06/07
Fuel-Related Driveability Concerns................................................................................................................08/07
Genuine Subaru Cooling System Conditioner Information............................................................................ 10/07
Subaru Super Coolant.................................................................................................................................... 11/07
P0171 and “Hard Start” Concerns................................................................................................................. 12/07
More Subaru Super Coolant Information.......................................................................................................03/08
Wynn’s Cooling System Equipment Announcement......................................................................................08/08
“Back To Basics” Rattling Noises From Under the Car.................................................................................02/09
TechTIPS Article Locator Edition
Page 28 of 55
09-Cooling, Fuel, & Exhaust System
2009 M/Y Forester Fuel Gauge Inconsistency...............................................................................................02/09
2010 M/Y Impreza, Rattling Noise from Exhaust...........................................................................................10/09
More “Super Coolant” Information.................................................................................................................10/09
WVJ-20 (Baja Fuel Pump Outlet Pipe) Revised Product Campaign Bulletin Information............................... 11/09
2011 M/Y Impreza Fuel Door Update............................................................................................................. 12/10
2011 M/Y Forester Fuel Pressure Testing Information................................................................................... 02/11
Rough Idle Condition Following WVU-31 Reprogramming............................................................................ 06/11
DTC P0453 Diagnostic Information.................................................................................................................11/11
FB Engine Fuel Pressure Testing Information................................................................................................03/12
BRZ High Pressure Fuel Pump...................................................................................................................... 07/12
BRZ Exhaust System Hardware.....................................................................................................................08/12
Radiator Leaks And Damage.........................................................................................................................08/12
Locksmith Information.................................................................................................................................... 09/12
Use of Dye In AC Systems............................................................................................................................. 09/12
12 Impreza Muffler Appearance Change....................................................................................................... 10/12
New Fuel With 15% Ethanol........................................................................................................................... 10/12
AF sensor and O2 sensor Removal................................................................................................................ 01/13
New Fuel 15% Ethanol Reminder...................................................................................................................08/13
Hard to Fill Fuel Tank Revisited...................................................................................................................... 12/14
Cooling System Appears to be Overfilled at PDI...........................................................................................06/15
P05A0 and Active Grill Shutter Inspection..................................................................................................... 01/17
Fuel Tank Cannot be Filled............................................................................................................................. 07/17
TechTIPS Article Locator Edition
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10-Heating Ventilation & A/C Systems
10-Heating Ventilation & A/C Systems
A/C Service Oil Adjustment ...........................................................................................................................06/91
A/C Diagnostic Aids ......................................................................................................................................08/91
A/C Pulser System Electrical Diagnosis 89MY & 90MY Loyale ....................................................................08/91
1992MY Legacy A/C Compressor Bracket Discontinuation ......................................................................... 11/91
Justy Wynn’s Air Conditioning Installation ....................................................................................................03/92
The Use of A/C Refrigerants Other Then R-12 .............................................................................................. 07/92
Justy Air Conditioning Information ................................................................................................................ 07/92
Air Conditioning Evaporator Odor .................................................................................................................08/92
SVX Zexel Auto A/C ......................................................................................................................................09/92
Legacy A/C Compressor ...............................................................................................................................10/92
Legacy A/C Kit Supersession .......................................................................................................................10/92
HFC134a Air Conditioning Refrigerant ..........................................................................................................02/93
R134a Air Conditioner Refrigerant Service Bulletin .......................................................................................03/93
Legacy Zexel Air Conditioning ......................................................................................................................04/93
Legacy Compressor Belt Tension .................................................................................................................04/93
1993 MY Impreza Air Conditioning Inoperative ............................................................................................. 07/93
Loyale Factory Installed A/C Does Not Operate ........................................................................................... 07/93
HFC 134a Air Conditioning Systems ............................................................................................................. 07/93
SVX Auto A/C Display Degrees Celsius to Degrees Fahrenheit ................................................................... 11/93
Bulletin 10-64-92 Heater Vent Door Binding or Leaking Air ..........................................................................12/93
Refrigerant Cross Contamination ..................................................................................................................01/94
0Z-12: The Facts ............................................................................................................................................02/94
SVX Complaints of No Heat from Dash Vents ..............................................................................................04/94
1995MY Impreza Coupe - Bubbles from the Dash Vents .............................................................................10/94
A/C Reminder ................................................................................................................................................05/95
PAG Oils ........................................................................................................................................................05/95
Air Conditioner Hoses ...................................................................................................................................08/95
1995MY RHD Postal Legacy Air Conditioning System .................................................................................08/95
A/C System Diagnostic Tips .........................................................................................................................08/95
A/C Testing For System Leakage ..................................................................................................................08/95
SVX A/C Cutting out When Ambient Temperature Is Hot; SVX Engine Running Hot ...................................09/95
SVX Evaporator Thermo Sensor, Intake Sensor ............................................................................................10/95
A/C Performance-All Models ........................................................................................................................10/95
Refrigerant Recovery and Recycling Certification ........................................................................................06/96
CFC R-12 Substitute Refrigerants .................................................................................................................06/96
Refrigerant Substitutions Warning ................................................................................................................08/96
SVX A/C Temperature Control Indicating Centigrade vs. Fahrenheit ...........................................................10/96
A/C Odors .....................................................................................................................................................05/97
1997MY Legacy A/C Seal Ring (Axis Seal) Change ......................................................................................05/97
1998MY Subaru Forester Dash Vent Noise ...................................................................................................09/97
1998MY Subaru Forester Squeaking Noise with A/C on ..............................................................................09/97
Dust and Dirt Entering Rear of Vehicle .......................................................................................................... 11/97
Subaru Impreza Center Dash Vent Airflow .................................................................................................... 07/98
Subaru A/C Retrofit Kits ................................................................................................................................09/98
Use of A/C Dyes in Subaru Air Conditioning Systems, Manufacturer’s Recommendations ........................09/98
Seasonal Reminder .......................................................................................................................................05/99
A/C Retrofit Kit Information ........................................................................................................................... 07/99
A/C Inoperative – Impreza/Forester Vehicles ................................................................................................10/99
2000MY Legacy Heater Control Cables.........................................................................................................05/00
2001MY A/C Disconnect Procedure.............................................................................................................. 07/00
TechTIPS Article Locator Edition
Page 30 of 55
10-Heating Ventilation & A/C Systems
Mode Control Panel Change..........................................................................................................................02/01
2001MY Legacy Evaporator Thermostat Probe Location.............................................................................. 07/01
Legacy H6 A/C Compressor Cutting Out......................................................................................................08/01
Valeo/Zexel A/C TXV Fastener Torque Specification.....................................................................................08/01
H6 Climate Control System Information.........................................................................................................09/01
Change To 2002MY Legacy/Outback A/C Information..................................................................................09/01
2001/2002MY Legacy Blower Motor Noise.................................................................................................... 11/01
Blower Motor Noise........................................................................................................................................08/02
Blower Motor Noise.................................................................................................................................. 01-02/03
Auto. A/C System Aspirator Tubes................................................................................................................. 07/03
Service Bulletin 10-72-02R – An Update........................................................................................................10/03
B9 Tribeca Air Conditioning Information........................................................................................................09/05
Water Leaking Onto Passenger Floor Board Area.........................................................................................09/05
Water Leaking From A/C Evaporator.............................................................................................................10/05
2005MY Legacy/Outback: Water Leaking from A/C Evaporator................................................................... 11/05
2005~06MY Legacy/Outback Center Dash Vent Temperature......................................................................05/06
B9 Tribeca Air Conditioning Information........................................................................................................06/06
H6 A/C Compressors Cutting Off..................................................................................................................06/06
06MY Impreza Models: Manual Climate Control System Air Flow Dial “Spring Back”................................. 07/06
Refrigerant Dye Use to Detect Refrigerant Leaks..........................................................................................10/06
A/C Operation Logic Change for 2007MY..................................................................................................... 11/06
R134-A Recycling Recovery and Recharge Machines: New Manufacturing Standards................................12/06
2007 MY Forester A/C Compressor Changes...............................................................................................04/07
A/C Certification –It’s the Law.......................................................................................................................04/07
Erratic Dash Vent Temperatures.....................................................................................................................02/08
HVAC Servo Harness Connector Confusion..................................................................................................01/09
2010 – 11 Legacy / Outback Vibration Felt in the Brake Pedal...................................................................... 11/10
Reminder- Use of A/C Leak Detection Dyes.................................................................................................. 08/11
Center Dash A/C Vents Closing, 2010-12 M/Y Legacy / Outback Models.....................................................11/11
2013-14Legacy and Outback Center Console Rear Air Vent Function.......................................................... 03/14
A/C Diagnosis................................................................................................................................................ 07/17
Condensation Inside Vehicles........................................................................................................................ 12/17
R-134 A/C Oil Guidelines................................................................................................................................ 07/18
B2242 Set With no Trouble Symptom............................................................................................................02/19
Recovery of Contaminated R-1234yf.............................................................................................................08/20
2020+ Legacy/Outback Passenger Air Mix and Intake Air Door Actuators................................................... 10/20
TechTIPS Article Locator Edition
Page 31 of 55
11-Emission Systems
11-Emission Systems
Justy “Check Engine” Light On/EGR Hose Pulling Off ................................................................................. 11/91
ROM Reminder/Legacy A/T Vehicles ............................................................................................................12/91
SVX Trouble Code 12 ....................................................................................................................................12/91
SVX Code 37 O2 Sensor (LH) ....................................................................................................................... 01/92
L-Series SPI Code 34 (EGR Solenoid) ...........................................................................................................02/92
All Models False Trouble Codes ....................................................................................................................04/92
Legacy Turbo Sport Sedan Code 45 (Pressure Sensor, Pressure Exchange Solenoid Valve) ......................06/92
Legacy Code 32 O2 Sensor ..........................................................................................................................06/92
Justy Code 13 ...............................................................................................................................................08/92
ROM Installation Tips ....................................................................................................................................09/92
ECU Memory-All Models ...............................................................................................................................09/92
Justy Trouble Code 23: Pressure Sensor ......................................................................................................01/93
O2 Sensors for XT4 and XT6 Vehicles ..........................................................................................................12/93
Legacy Code 32 O2 Sensor ..........................................................................................................................03/94
Carbureted Vehicles with ID Codes While Engine Is Running .......................................................................06/94
OBD II - DTC P0441 “Evaporative Emission Control System Incorrect Purge Flow” .................................... 11/94
OBD II Test Drives ......................................................................................................................................... 11/94
Legacy and Impreza Engines with No Injection Pulse #1 Cylinder ...............................................................03/95
Impreza Air Suction Valve Noise ...................................................................................................................03/95
1995MY Subaru Legacy DTC P0505 - Idle Control System Malfunction.......................................................06/95
1995MY Subaru Legacy DTC P0325 - Knock Sensor Circuit Malfunction ...................................................06/95
1995MY Subaru Legacy DTC P0130 - Front O2 Sensor Circuit Malfunction ................................................06/95
Rough Idle on MPFI Vehicles ........................................................................................................................ 07/95
1994MY Impreza ROM Sockets .................................................................................................................... 07/95
DTC P0505 Idle Control System When Solenoid Measures 5w or Less .......................................................09/95
Extreme Cold Weather Engine Warm Up & OBD II .......................................................................................12/95
Loose Fuel Caps & Trouble Code P0440 ...................................................................................................... 07/96
1997MY Legacy Warranty Claims For Loose Fuel Caps ...............................................................................09/96
Legacy (Non Turbo), SVX, & Impreza ISC Valves ..........................................................................................09/96
DTC P0440 & Legacy Fuel Caps ................................................................................................................... 11/96
Blue Vs. Gray Connectors during Diagnosis ................................................................................................. 11/96
Extreme Cold Weather Engine Warm-Up & OBD-II ...................................................................................... 11/96
DTC P1500 Radiator Fan Relay One Circuit ..................................................................................................03/97
1997MY Subaru Impreza Outback Sport ......................................................................................................03/97
Understanding P0440 ...................................................................................................................................04/97
DTC P0507- Idle Control System RPM Higher Than Expected .....................................................................05/97
DTC P0500 .................................................................................................................................................... 07/97
Additional Information regarding Code P0440 .............................................................................................. 07/97
OBD-II Cylinder Misfire Codes ......................................................................................................................08/97
More P0440 Information ................................................................................................................................ 10/97
Exhaust Smell during Cold Start ...................................................................................................................01/98
Model Year 1998 Changes In P0440 Evap. Operation ...................................................................... 1/98 & 05/98
DTC P0440 Revisited ....................................................................................................................................05/98
DTC P0440 Tip .............................................................................................................................................. 11/98
DTC P1507 ..................................................................................................................................................... 11/98
DTC P0705 Diagnostics ................................................................................................................................05/99
Freeze Frame Data ........................................................................................................................................08/99
Evaporative System Diagnosis ......................................................................................................................09/99
OBD Readiness Codes ................................................................................................................................. 11/99
DTC P0440 1998/1999MY Forester .................................................................................................................1/99
TechTIPS Article Locator Edition
Page 32 of 55
11-Emission Systems
WXV-79 Engine Control Module Service Program......................................................................................... 11/00
Freeze Frame Data.........................................................................................................................................05/01
Ignition Coil Service Precaution............................................................................................................... 01-02/02
2002MY Legacy Atmospheric Pressure Solenoid Valve Operation......................................................... 03-04/02
DTC P1591 2002MY Impreza WRX M/T................................................................................................... 03-04/02
C.I.D. Number for Reprogramming.......................................................................................................... 03-04/02
WWG-90 Campaign Bulletin Correction........................................................................................................08/02
ECM Reflashing Claim Coding................................................................................................................. 01-02/03
Diagnostic Trouble Codes After WWK-94......................................................................................................05/03
ECM Calibration Identification Numbers........................................................................................................05/03
ECM Reflashing..............................................................................................................................................05/03
Control Unit Reflashing Information............................................................................................................... 07/03
Diagnostic Trouble Code (DTC) Detecting Criteria.........................................................................................08/03
Rough Idle/Check Engine Light after Battery Disconnect.............................................................................09/03
Evaporative Canister Rattle Noise in ‘04MY Impreza.....................................................................................09/03
ECM Reprogramming – A Reminder.............................................................................................................. 01/04
2004MY Legacy PZEV Vehicles.....................................................................................................................04/04
DTC P1507 on 1996MY-1999MY Legacy Vehicles.........................................................................................04/04
Updated Reprogramming Sheet....................................................................................................................05/04
ECM Reprogramming Fax Forms...................................................................................................................09/04
Freeze Frame Data.........................................................................................................................................09/04
Air Fuel Ratio Sensor Kits..............................................................................................................................12/04
2005MY & Reflashing.....................................................................................................................................12/04
DTC P0171......................................................................................................................................................04/05
Updated Reprogramming Sheet....................................................................................................................08/05
DTC P0171......................................................................................................................................................09/05
Freeze Frame Data & Calling the TechLine ....................................................................................................09/05
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Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
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- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
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Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations
- 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
Last update on 2026-06-30 / Affiliate links / Images from Amazon Product Advertising API
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API
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