Electrical Compass Troubleshooting
Electrical Compass Troubleshooting
NOTE:
Check the vehicle battery condition first.
Check for B-CAN DTCs and resolve them before troubleshooting.
Check the connectors for poor connections or loose terminals.
1.
DTC check:

DTC check
?1.
Check for hard error codes.

Is the DTC2623 indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
Problem verification:

Problem verification
?1.
Check if the audio display is flashing the CAL and the NW.

Are the CAL and the NW flashing?

     
YES
     
     
     
Reboot the electrical compass unit, and recheck. If the symptom is still present, replace the electrical compass unit.?
     
NO
     
     
     
Go to step 3.
3.
Compass calibration check:

Compass calibration check
?1.
Do the Electrical Compass Calibration.

Is the calibration completed?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
Go to step 4.
4.
System Diagnostic Mode check:

System Diagnostic Mode check
?1.
Go into the System Diagnostic Mode, and use the System Links to check the B-CAN icon status.

Is the B-CAN icon green?

     
YES
     
     
     
     
NO
     
     
     
Go to step 5.
5.
Open wire check (B-CAN_H, B-CAN_L lines):

Open wire check (B-CAN_H, B-CAN_L lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
Audio unit connector B (20P)
Gauge control module 32P connector

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Audio unit connector B (20P): disconnected
 
Gauge control module 32P connector: disconnected
Test point 1
Audio unit connector B (20P) No. 3
Test point 2
Gauge control module connector A (32P) No. 31


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the wire(s) between the audio unit and the gauge control module.?