Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
DTC U0463: Invalid Data Received From Navigation Display Module
DTC detecting condition:
CAN data from AVN is abnormal.
Trouble symptom:
- Time is not shared with audio.
- Orientation screen is not displayed.
- Turn by turn screen is not displayed.
- Audio screen is not displayed.
- Favorite screen Orientation is not displayed.
- Favorite screen Weather is not displayed.
- Favorite screen Speed limit are not displayed.
- Orientation is not displayed properly in the orientation screen.
- Orientation shown in the orientation screen is different from one in the navigation system.
- Names of streets and symbols shown in the orientation screen are different from those in the navigation system.
- Speed limit and signs shown in the orientation screen are different from those in the navigation system.
- Arrows shown in the turn by turn screen are different from those in the navigation system.
- Remaining distance shown in the turn by turn screen is different from one in the navigation system.
- Names of the next streets shown in the turn by turn screen are different from those in the navigation system.
- Weather shown in the weather screen is different from one in the head unit.
- The source display shown in the audio screen is different from one in the head unit.
- Audio information shown in the audio screen is different from one in the head unit.
NOTE:
For the diagnostic procedure, refer to DTC U0074. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC U0074: CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.