Possible Causes
| Possible Causes |
|---|
| EMERGENCY MICROPHONE (+/-) CIRCUIT OPEN |
| MICROPHONE 1 (+/-) CIRCUIT OPEN |
| REARVIEW MIRROR |
| RADIO |
| GLOBAL TELEMATICS BOX MODULE (TBM2) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .