B1412

B1412-HFM LEFT AUDIO OUTPUT CIRCUIT HIGH

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on.

- Set Condition:
The Hands Free Module detects high voltage on the (X703) Left Audio Output circuit.

Diagnostic Test

1. CHECK FOR ACTIVE DTC
With the scan tool, read the active DTC's.
Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle.
With the scan tool, read the active DTC's.
Does the scan tool display this DTC as active?

Yes

- Go To 2

No

- If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

2. (X703) LEFT AUDIO OUTPUT CIRCUIT OPEN

Turn the ignition off.
Disconnect the Hands Free Module harness connector.
Disconnect the Radio C1 harness connector.
Measure the resistance of the (X703) Left Audio Output circuit between the HFM connector and the radio connector.
Is the resistance below 5.0 ohms?

Yes

- Go To 3

No

- Repair the (X703) Left Audio Output circuit for an open
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.

3. (X795) COMMON AUDIO OUTPUT CIRCUIT OPEN

Measure the resistance of the (X795) Common Audio Output circuit between the HFM connector and the radio connector.
Is the resistance below 5.0 ohms?

Yes

- Go To 4

No

- Repair the (X795) Common Audio Output circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.

4. (X703) LEFT AUDIO OUTPUT CIRCUIT SHORT TO VOLTAGE

Turn the ignition on.
Measure the voltage of the (X703) Left Audio Output circuit.
Is the voltage above 1.0 volts?

Yes

- Repair the (X703) Left Audio Output circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.

No

- Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Hands Free Module.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.