Diagnostic Test
- CHECK FOR AN INTERMITTENT CONDITION
- Turn the ignition on.
- Using the scan tool, record and erase the Entertainment Telematic Module (ETM/LTM) DTCs.
- Turn the ETM on.
- Adjust the speakers to the front and center.
- Using the scan tool, read the ETM DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- CHECK THE AMPLIFIER
- Turn the ignition off.
- Disconnect the Amplifier C1 harness connector.
- Connect a jumper wire between the (X54) Radio Right Front Audio (+) circuit and the (X56) Radio Right Front Audio (-) circuits at the Amplifier C1 harness connector.
- Turn the ignition on.
- Turn the Radio on.
- Adjust the speakers to the front and center.
- Using the scan tool, read ETM DTCs.
Is the DTC active?
Yes
- Go To 3
No
- Replace the Amplifier in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- CHECK THE (X54) RADIO RIGHT FRONT AUDIO (+) CIRCUIT FOR AN OPEN
- Turn the ignition off.
- Disconnect the ETM C1 harness connector.
- Measure the resistance of the (X54) Radio Right Front Audio (+) circuit between the ETM C1 connector and the Amplifier C1 harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Go To 4
No
- Repair an open in the (X54) Radio Right Front Audio (+) circuit.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- CHECK THE (X56) RIGHT FRONT AUDIO (-) CIRCUIT FOR AN OPEN
- Measure the resistance of the (X56) Radio Right Front Audio (-) circuit between the ETM C1 harness connector, and the Amplifier C1 harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Replace the ETM in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Repair an open in the (X56) Radio Right Front Audio (-) circuit.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- Measure the resistance of the (X56) Radio Right Front Audio (-) circuit between the ETM C1 harness connector, and the Amplifier C1 harness connector.