MIRROR POWER CIRCUIT SHORT TO VOLTAGE
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
The Hands Free Module detects high voltage on the (X793) Microphone Feed circuit.
| Possible Causes |
| (X793) MICROPHONE FEED CIRCUIT OPEN |
| (X793) MICROPHONE FEED CIRCUIT SHORT TO VOLTAGE |
| AUTOMATIC DAY/NIGHT MIRROR |
| HANDS FREE MODULE |
Diagnostic Test
1.CHECK FOR ACTIVE DTCDid this DTC reset?
Yes
- Go To 2
No
- The condition that set this DTC is no longer present. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
2.(X793) MICROPHONE FEED CIRCUIT OPEN
Is the resistance below 5.0 ohms?
Yes
- Go To 3
No
- Repair the (X793) Microphone Feed circuit for an open.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
3.(X793) MICROPHONE FEED CIRCUIT SHORT TO VOLTAGE
Is the voltage above 1.0 volt?
Yes
- Repair the (X793) Microphone Feed circuit for short to voltage.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Go To 4
4.AUTOMATIC DAY/NIGHT MIRROR
Did this DTC reset?
Yes
- Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Hands Free Module in accordance with the service information.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No
- Repair is complete.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).