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