LEFT AUDIO INPUT 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 (X41) Audio MUX Left circuit.

Possible Causes

(X41) AUDIO MUX LEFT CIRCUIT OPEN

(X140) AUDIO RETURN CIRCUIT OPEN

(X41) AUDIO MUX LEFT CIRCUIT SHORT TO VOLTAGE

HANDS FREE MODULE

1.CHECK FOR ACTIVE DTC

Did this DTC reset?

Yes

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.(X41) AUDIO MUX LEFT CIRCUIT OPEN

Is the resistance below 5.0 ohms?

Yes

Repair the (X41) Audio MUX Left circuit for an open
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.(X140) AUDIO RETURN CIRCUIT OPEN

Is the resistance below 5.0 ohms?

Yes

Repair the (X140) Audio Return circuit for an open.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

4.(X41) AUDIO MUX LEFT CIRCUIT SHORT TO VOLTAGE

Is the voltage above 1.0 volts?

Yes

Repair the (X41) Audio MUX Left circuit for a short to voltage.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

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).