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