NHTSA ID Number: 10232225
Manufacturer Communication Number: 09-98-22
TSB/Document Date: 2023-03-02
Summary
This bulletin announces the availability of new reprograming files for the Engine Control Module (ECM).
ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
CLAIMS PERSONNEL
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
q
© 2022 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2019-22MY Ascent
NUMBER: 09-98-22
SUBJECT:
Camshaft Position Correlation /
DTCs: P0016, P0017, P0018, P0019,
P0014, P0024, P0128, P2109
DATE: 02/20/23
INTRODUCTION:
This bulletin announces the availability of new reprograming files for the Engine Control Module
(ECM) developed to remedy the following DTCs:
•
P0016: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A
•
P0017: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B
•
P0018: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A
•
P0019: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B
•
P0014: “B” Camshaft Position - Timing Over-Advanced Or System Performance Bank 1
•
P0024: “B” Camshaft Position - Timing Over-Advanced Or System Performance Bank 2”
•
P0128: Coolant Thermostat (Engine Coolant Temperature Below Thermostat Regulating
Temperature)
•
P2109: Throttle/Pedal Position Sensor “A” Minimum Stop Performance
These files contain enhanced logic for the self-diagnosis program of the ECM. If any of the DTCs
listed above are found to be stored in the ECM, follow the procedures outlined below.
PACK FILE APPLICABILITY:
Model
Ascent
MY
File Description
Decryption Keyword
New CID #
19
22765AL738.pak
F55756A0
LT8DA00A
20
22765AN505.pak
A4FE1157
LT8F500C00G
21
22765AP823.pak
F7FFB51D
LT8H500D00G
22
22765AS002.pak
A7BC72B6
LT8J400F00G
These files are included in the November 2022 SSM software update.
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.
Subaru of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 1 of 12
SERVICE PROCEDURE / INFORMATION:
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 2 of 12
(*1) Instructions on how to perform and read the OBD MODE test results. This procedure will
be required when performing the diagnostic Steps outlined below.
Read the following data monitor values:
1. MID - $35 TID - $8B
2. MID - $35 TID - $8C
3. MID - $35 TID - $8D
4. MID - $35 TID - $8E
5. MID - $36 TID - $8B
6. MID - $36 TID - $8C
7. MID - $36 TID - $8D
8. MID - $36 TID - $8E
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 3 of 12
STEP 1: Are DTCs P0016,17,18 or 19 found displayed within the fault memory?
NO - Perform the reprograming procedure outlined in STEP 2 ONLY. The service
procedure is finished, no further action is required.
YES - Proceed to STEP: 2 and continue to the proceeding steps.
STEP 2: Reprogram the ECM following the normal FlashWrite procedure.
Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics
DCA8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-1100 Diagnostic
Battery Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control
module is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the
battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power
Supply Mode, and have the battery voltage stabilized and ready for reprogramming.
NOTES:
•
For instructions on using the Power Supply Mode, reference the applicable User Manual for
the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR81100 Diagnostic Battery Charger on STIS.
•
Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all
switched OFF before setting up the charger for Power Supply Mode.
•
Select the correct battery type (Enhanced Flooded, Flooded, Gel, AGM or AGM Spiral).
•
Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have
different CCA ratings. Always confirm the battery’s CCA rating before proceeding.
•
If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to
13.5 Volts.
•
DO NOT connect the DST-i or DST-010 until the Power Supply mode function has completed
its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on
the display.
•
Once Power Supply Mode reaches a steady 13.5 Volts, connect the DST-i or DST-010 to the
OBD connector and proceed with initiating the normal FlashWrite reprogramming process.
•
Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage
rises beyond 14 Volts while programming is in process, the procedure will abort. This can
indicate a need to test or charge the vehicle battery before any further attempt at programming
is made.
•
ALWAYS set the power supply voltage to 13.5 Volts when using Power Supply Mode. NEVER
turn the ignition switch on when charging at voltages 15 Volts or higher.
REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge
the battery fully before proceeding to reprogram the vehicle while using the Power Supply Mode.
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 4 of 12
NOTE: Control module failures resulting from battery discharge during reprogramming are not a
matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose
per the procedure outlined in the applicable Service Manual.
VERY IMPORTANT:
This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging
System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply to
any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the GR81100 and their Power Supply Mode feature have been tested and approved by SOA.
End of procedure for vehicles WITHOUT DTCs P0016, P0017, P0018, or P0019 store in the
ECM.
STEP 3: Using SSM, read the value the following four data monitor items (ALWAYS Save SSM
Data):
1. VVT Initial Position Learning Value #1
2. VVT Initial Position Learning Value #2
3. VVT EX Initial Position Learning Value #1
4. VVT EX Initial Position Learning Value #2
Are all of the data monitor item values within the acceptable range listed in the table above?
YES - proceed to STEP 5.
NO - proceed to STEP 4.
STEP 4: Perform the procedures outlined in “#7 INSPECTION MODE N” and “#12
INSPECTION MODE T”. Then re-check the threshold values in STEP 3 along with the OBD
MODE test results (*1)
“#7 INSPECTION MODE N” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode> #7
DRIVE CYCLE N
A. Confirm the battery voltage is 12 Volts or more and the fuel tank is at least half full.
B. Using SSM, clear the fault memory. Prepare the SSM to be kept in the vehicle during the
following road test.
C. With gear selector in the park position (neutral for MT models), idle the engine at
approximately 2500 rpm for 40 seconds or more.
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 5 of 12
D. Move the gear selector into the drive position (appropriate gear range for MT models.
Accelerate the vehicle to 31 mph or more.
E. When the vehicle speed is 31 mph or more, release the accelerator pedal and brake pedal
(and clutch for MT models) and allow the vehicle to decelerate with any gear shift changes.
Maintain the engine speed between 2500 rpm to 1900 rpm for 5 seconds during this
deceleration.
NOTE: Depending on road conditions, an appropriate gear might have to be selected to maintain the
desired engine speed. The vehicle speed is not important as long as the engine speed is within range
during the declaration.
F. In a suitable area, safely bring the vehicle full stop and allow it to idle for 5 minutes.
“#7 INSPECTION MODE N” procedure is complete. Proceed to “#12 INSPECTION MODE T”
procedure.
“#12 INSPECTION MODE T” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #12
INSPECTION MODE T
A. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
B. Start the engine.
C. Allow the engine to idle for at least 3 minutes.
D. Accelerate the vehicle speed to approximately 37 mph.
E. While maintaining approximately 37 mph, cycle the accelerator from a 0% to 20% opening
angle. Try to keep these cycles within 5 second intervals. Maintain this driving pattern for 20
minutes or more.
NOTE: It is acceptable to stop the vehicle if needed depending on road/traffic conditions during this
driving pattern.
F. Release the accelerator pedal and brake pedal (and clutch for MT models) and allow the
vehicle to decelerate with any gear shift changes.
G. In a suitable area, safely bring the vehicle full stop and turn off the engine.
“#12 INSPECTION MODE T” procedure is complete.
Read the threshold values from STEP 3 (pictured below) and the OBD MODE test results (*1)
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 6 of 12
Are all of the data monitor item values within the acceptable range listed in the table below?
Are the threshold values between -1500 to + 1500?
YES - The procedure is FINISHED.
NO - Repeat STEP 4 ONE TIME ONLY and if the result answer is still “NO”,
proceed to STEP 6.
STEP 5: Perform the “#7 INSPECTION MODE N” and “#12 INSPECTION MODE T”
procedure.
“#7 INSPECTION MODE N” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #7
INSPECTION MODE N
A. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
B. Using SSM, clear the fault memory. Prepare the SSM to be kept in the vehicle during the
following road test.
C. With gear selector in the park position (neutral for MT models), idle the engine at
approximately 2500 rpm for 40 seconds or more.
D. Move the gear selector into the drive position (appropriate gear range for MT models.
Accelerate the vehicle to 31 mph or more.
E. When the vehicle speed is 31 mph or more, release the accelerator pedal and brake pedal,
allow the vehicle to decelerate without any gear shift changes. Maintain the engine speed
between 2500 rpm to 1900 rpm for 5 seconds during this deceleration
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 7 of 12
NOTE: Depending on road conditions, an appropriate gear might have to be selected to maintain the
desired engine speed. The vehicle speed does is not important as long as the engine speed is within
range during the declaration.
F. In a suitable area, safely bring the vehicle full stop and allow it to idle for 5 minutes.
“#7 INSPECTION MODE N” procedure is complete. Proceed to “#12 INSPECTION MODE T”
procedure.
“#12 INSPECTION MODE T” procedure.
Using the applicable Service Manual, refer to: DIAGNOSTICS > ENGINE> Inspection Mode > #12
INSPECTION MODE T
H. Confirm the battery voltage is 12 Volts or more the fuel is at least half full.
I. Start the engine.
J. Allow the engine to idle for at least 3 minutes.
K. Accelerate the vehicle speed to approximately 37 mph.
L. While maintaining approximately 37 mph, cycle the accelerator from a 0% to 20% opening
angle. Try to keep these cycles within 5 second intervals. Maintain this driving pattern for 20
minutes or more.
NOTE: It is acceptable to stop the vehicle if needed depending on road/traffic conditions during this
driving pattern.
M. Release the accelerator pedal and brake pedal (and clutch for MT models) and allow the
vehicle to decelerate with any gear shift changes.
N. In a suitable area, safely bring the vehicle full stop and turn off the engine.
“#12 INSPECTION MODE T” procedure is complete.
O. Using SSM, select Diagnosis > Each System > Engine > DTC > Readiness Code
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 8 of 12
P. Read the readiness codes for P0016, P0017, P0018, P0019, P000A, P000B, P000C, and
P000D. Confirm the self-diagnosis is complete and that the codes are not pending.
Q. Check the DTC and data monitor threshold values. Using SSM, select Diagnosis > Select
Vehicle > OBD System – Each System > ECM-EngineControl > OBD MODE test results (*1)
Are there NO DTCs present and the threshold values between -1500 to + 1500?
YES - The procedure is FINISHED.
NO - Proceed to STEP 6
STEP 6: Inspect the engine oil level and condition.
IMPORTANT: If the engine oil and filter were replaced prior to diagnosis, there is no need for
inspection. Proceed to STEP: 7.
Is there any abnormal condition or Inappropriate oil level??
YES - Perform the engine oil and filter change. Repeat STEP 4 and STEP 5, then continue
diagnosis.
NO – Proceed to STEP 7
STEP 7: Performed the outlined timing chain inspection outlined below:
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 9 of 12
IMPORTANT: If the timing chain was replaced prior to diagnosis, there is no need to perform
the inspection. Proceed to STEP 8.
A. Using SSM, clear the fault memory.
B. Switch the ignition to the “OFF” position.
C. Disconnect the oil control solenoid valve connector on the bank with associated DTC.
D. Switch the ignition switch to the “ON” position.
E. Using SSM and the engine not running, read the “VVT Advance Angle Value” data monitor
value.
F. Start the engine and read the “VVT Advance Angle Value” data monitor value for a duration of 10
seconds.
G. Switch the ignition to the “OFF” position.
Is the “VVT Advance Angle Value” data monitor value out of -10 degrees to +10 degrees?
YES - Adjust and / repair the timing chain as needed. Repeat STEP 4 or STEP 5,
then continue diagnosis.
NO - Proceed to STEP 8.
STEP 8: Perform a visual inspection of the engine harness and the connectors specified below for
any physical damage.
IMPORTANT: If the engine harness was replaced prior to diagnosis, there is no need to
perform the inspection. Proceed to STEP 9.
Connectors:
•
•
Oil Control Solenoid
•
CAM Position Sensor
•
Crank Position Sensor
Was there any damage found?
YES - Repair the damaged harness and / or connector. Repeat STEP 4 or STEP 5,
then continue diagnosis.
NO – Proceed to STEP 9.
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 10 of 12
STEP 9: Perform the following Ohm tests:
A. Switch the ignition to the “OFF” position.
B. Disconnect the ECM and the Crank Position Sensor. Disconnect the Oil Control Valve and Cam
Position Sensor associated with the DTC.
C. Measure the resistance between the following and record the results:
Connector E158 Pin 99 & Connector E38 Pin 2
Connector E158 Pin 78 & Connector E36 Pin 2
Connector E158 Pin 66 & Connector E10 Pin 1
Are there resistance values 1 Ohm or higher?
YES - Replace the damaged harness. Repeat STEP 4 or STEP 5, then
continue diagnosis.
NO - Proceed to STEP 10.
STEP 10: Perform and engine oil pressure test as per the applicable Service Manual: Engine >
Mechanical > Engine Oil Pressure > INSPECTION
Was the engine oil pressure found to be within specification?
NO - Inspect the engine oil strainer. Clean or replace any needed parts depending on
the inspection results.
YES - Proceed to inspect the items listed below in the following order. Clean or
replace the needed parts depending on the inspection results. Repeat STEP 4
and STEP 5, then continue diagnosis.
•
Oil Passages in the Chain Cover
•
Oil Passages in the Cam Sprocket
•
Cam Carriers (possible scoring)
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited Warranty period, Emissions Defect Warranty or
covered by an active Subaru Added Security Classic or Gold plan, this repair may be submitted using
the following claim information:
For ECM reprograming ONLY
Labor Description
Labor Operation #
Labor Time
Fail Code
REPROGRAMMING, ENGINE CONTROL MODULE*
A455-288
.4
UPG-48
*New/Installed CID number will be required for claim submission
Continued...
Bulletin Number: 09-98-22; Date: 02/20/23
Page 11 of 12
For Situations Continuing after Step 4 or 5 of the Work Procedure.
When further Diagnosis and repairs are needed an additional job line / repair claim can be
submitted. Please refer to the Subaru Labor Time Guide for warranty time and coverage. Below is a
possible EXAMPLE.
For vehicles within the Basic New Car Limited Warranty period or covered by an active Subaru
Added Security Classic or Gold plan, a repair may be submitted using the following claim
information:
Labor Description
Labor Operation #
Labor Time
Fail Code
OBDII OIL CHANGE TO FIX AVCS OPERATION
A455-443
1.0
BAT-42
IMPORTANT REMINDERS:
•
SOA strongly discourages the printing and/or local storage of service information as previously
released information and electronic publications may be updated at any time.
•
Always check for any open recalls or campaigns anytime a vehicle is in for servicing.
•
Always refer to STIS for the latest service information before performing any repairs.
Bulletin Number: 09-98-22; Date: 02/20/23
Page 12 of 12
- 6X better wear protection on critical engine parts than...
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full...
- Protection for 10,000 miles between oil changes
- Meets or exceeds the following specifications: API SP/SN...
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
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TSB/Document ID: 09-98-22
Replacement Service Bulletin Number:
MFR Communication Date: 2023-02-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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