Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on and open one of the front doors.NOTE:
A front door must remain open whenever checking or erasing Radio DTCs.
- With the scan tool, read Radio DTCs and record on the repair order.
- Cycle the ignition from on to off, wait five seconds and then back to on.
- Turn the radio on and set the volume to 25.
- Adjust the speakers to the rear and center.
- With the scan tool, read Radio DTCs.
Did the DTC return?
Yes
- Go To 2
No
- 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. If no problems are found, test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- Turn the ignition on and open one of the front doors.
- CHECK THE LEFT REAR SPEAKER
- Turn the ignition off.
- Disconnect the Left Rear Speaker harness connector.
- Measure the resistance of the speaker between the two terminals.
Is the resistance above 3.0 Ohms?
Yes
- Replace the Left Rear Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Go To 3
- CHECK THE (X303) LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN
- Disconnect the Radio C1 harness connector.
- Measure the resistance of the (X303) Left Rear Speaker (+) circuit between the Radio harness C1 connector and the Left Rear Speaker harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Go To 4
No
- Repair the (X303) Left Rear Speaker (+) circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- CHECK THE (X393) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN
- Measure the resistance of the (X393) Left Rear Speaker (-) circuit between the Radio C1 harness connector and the Left Rear Speaker harness connector.
Is the resistance below 3.0 Ohms?
Yes
- Replace the Radio in accordance to the service information. Refer to RADIO, REMOVAL .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Repair the (X393) Left Rear Speaker (-) circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- Measure the resistance of the (X393) Left Rear Speaker (-) circuit between the Radio C1 harness connector and the Left Rear Speaker harness connector.