NHTSA ID Number: 10234876
Manufacturer Communication Number: TechnicalSupport
TSB/Document Date: 2023-04-24
Summary
Overview to the Subaru
SD Card Navigation System
Head Unit.
Yes
Recheck for original
problem.
23
Recheck for original
problem.
NO SOUND (All modes)
Condition: Absolutely no sound on all modes
No sound output for all audio sources/modes.
Is the VOLUME set to a sufficient level for the audio
source to be audible?
No
Turn up VOLUME and recheck for original problem.
Yes
Check all speakers impedance and wire harnesses.
Are any physical damages,
shorted or grounded conditions found?
Yes
Replace or repair it and recheck for original problem
Note:
If speaker or wire harness is
shorted or grounded, the
Navigation Head Unit will
shut off sound output due to
circuit protection.
No
Replace Navigation Head
Unit.
24
2. Troubleshooting
NO SOUND (AM/FM)
Condition: No sound on Radio mode (AM/FM) only
No sound output for
Radio mode.
Is the VOLUME set to a
sufficient level for the
audio source to be audible?
No
Turn up VOLUME and
recheck for original
problem.
Yes
Check if Antenna jack is
securely connected to
Navigation Head Unit.
Yes
The problem was
solved.
Radio sound came
back?
No
Remove antenna jack
from Navigation Head
Unit and connect a
known good external
antenna to Navigation
Head Unit.
Radio sound restored?
No
Navigation Head Unit
needs to be examined
and/or replaced.
Yes
Check ANT+B output
power from Navigation
Head Unit.
(16P connector D,
#8 pin, type 12V )
Is ANT+B within specification?
No
Replace Navigation
Head Unit.
25
Check antenna system.
Yes
Ex) Roof antenna
Antenna AMP
Antenna wire harness
NO SOUND (SAT RADIO)
Condition: No sound on SAT radio mode only
No sound output for
SAT (Satellite) radio
Check surroundings:
Is the vehicle in an environment where reception is difficult due to something blocking
the area above the vehicle?
Yes
Move the vehicle and
check it again.
No
Change to other modes (AM/
FM/CD) and then select a XM
mode again. Did the SAT radio sound come back?
Yes
The problem was solved.
No
SAT radio is a paid service.
Did the customer’s subscription expire? Or, did the free
subscription provided by a
dealer expire?
Yes
Contact Satellite Radio
company and renew the
subscription.
Line Diag
No
Connectivity Check
Vehicle Signal Check
OK
・GPS
・MIC
・Rr_CAM
・AUX
・USB
・SAT
Check if Antenna jack is securely connected to Navigation
Head Unit.
And check the connectivity in
diagnostic mode.
ILL＋
ON
SPD
OFF
OK
OK
OK
OK
PKB
ON
REV
OFF
OK
Camera Setting
Audio Check
The problem was
solved.
Yes
Is the SAT radio sound restored?
Remove antenna jack
from Navigation Head
Unit and connect a
known good external
antenna to Navigation
Head Unit. Is the SAT
radio sound restored?
No
Check XM output power from
Navigation Head Unit. (1P connector G, type 5V )
Is XM within specification?
No
Yes
No
26
Yes
Check antenna system
(Antenna wire harness,
Roof antenna, etc.)
Replace Navigation
Head Unit.
2. Troubleshooting
NO SOUND (CD)
Condition: No sound on CD mode only
No sound output for
CD mode.
Does the Navigation
Head Unit accept and
eject audio CD discs
correctly?
No
Is there any foreign object
(ex. label) in the CD slot?
No
Yes
Is Navigation Head Unit
installed property?
Is CD-R/RW being
used?
Yes
No
Insert and playback a
known-good, commercially available audio
CD(CDDA).
Are CDDA/MP3/WMA
files recorded to CD-R/
RW?
Yes
Yes
Check to make sure
that original CD-R disc
is not excessively
scratched/warped and
re-check for original
No
Replace Navigation
Head Unit
27
Yes
Replace Navigation
Head Unit
Yes
No
No
Re-install Navigation
Head Unit properly and
re-check for original problem.
Navigation Head Unit
cannot playback files
other than CDDA/MP3/
WMA.
Re-check for original
problem with a proper
test disc.
NO SOUND (USB)
Condition: No sound on USB mode only.
No sound output for
USB mode.
Line Diag
Does USB memory
have MP3/WMA files?
The Navigation Head
Unit only playback
MP3/WMA files in USB
mode.
No
Yes
Connectivity Check
Vehicle Signal Check
OK
・GPS
・MIC
・Rr_CAM
・AUX
・USB
・SAT
ILL＋
ON
SPD
OFF
OK
OK
OK
OK
PKB
ON
REV
OFF
OK
Camera Setting
Check the USB connectivity
in diagnostic mode.
Reconnect USB.
Does the diagnostic mode
display "OK"?
No
Does the indicator display
"OK"?
Yes
No
Yes
Switch to USB mode
and recheck for original problem.
Use a known good
USB device containing MP3/WMA files.
Does Navigation Head
Unit play the files?
If the USB has an LED indicator, does this indicator
lamp light up when the Navigation Head Unit is connected?
Yes
Yes
No
Original USB drive
could be defective.
Replace vehicle USB cable
with a known-good one and
re-check original problem.
No
Does the same issue occur?
Replace Navigation
Head Unit
No
Yes
Original vehicle USB
cable is defective and
needs to be replaced.
28
Audio Check
2. Troubleshooting
NO SOUND (iPod)
Condition: No sound only iPod mode
Is the iPod compatible?
See page 91 Q48 for a
list of compatible Apple
products, for the latest
updates see Subaru.com.
No
Non supported iPod
may not work.
Line Diag
Connectivity Check
Vehicle Signal Check
OK
・GPS
・MIC
・Rr_CAM
・AUX
・USB
・SAT
Yes
Check the USB connectivity
in diagnostic mode since iPod
will be connected to USB port.
ILL＋
ON
SPD
OFF
OK
OK
OK
OK
PKB
ON
REV
OFF
OK
Camera Setting
No
Audio Check
Reconnect iPod cable.
Does the diagnostic
mode display "OK"?
Does the indicator display
"OK"?
Yes
Yes
No
Switch to iPod mode and recheck for original problem.
Remove the iPod device and
check to see if iPod works by
itself.
Does iPod play without connect to Navigation Head Unit?
Examine customer's iPod.
No
Use a known good iPod device
containing music files and recheck for original problem.
Replace vehicle iPod cable
with a known-good one and
re-check original problem.
Does the same issue occur?
Yes
Replace Navigation
Head Unit
Yes
No
Original vehicle iPod
cable is defective and
needs to be replaced.
29
CD SKIP
CD skips during playback.
Does CD skipping only
occur when vehicle is in
motion?
Yes
Does CD skipping happen at the same location?
Yes
Check the location if road
condition is good (Ex. dirt
road, railroad track, road
construction may cause
CD skipping).
No
No
Is Navigation Head Unit
installed property?
No
Re-install Navigation
Head Unit properly and
re-check for original problem.
Yes
Replace CD with knowngood store-bought CD.
No
Does the problem still
occur?
CD being used may be excessively scratched/warped or has
paper label on it. Please replace
disc and re-check for original
problem.
Yes
Replace Navigation
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TechnicalSupport
Replacement Service Bulletin Number:
MFR Communication Date: 2013-05-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [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.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
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
This product presentation was made with AAWP plugin.