Diagnostic Test
- CHECK FOR AN INTERMITTENT CONDITION
- Turn the ignition on and open one of the front doors.NOTE: A front door must remain open whenever checking or erasing Amplifier DTCs.
- Turn the radio on.
- With the scan tool, erase the Amplifier DTCs.
- With the scan tool, reset the Amplifier.
- With the scan tool, read the active Amplifier DTCs.
Does the scan tool display active: B1477-CHANNEL 5 AUDIO SPEAKER OUTPUT CIRCUIT OPEN?
Yes
- Go to step 2
No
- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the SYSTEM 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 DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- Turn the ignition on and open one of the front doors.
- CHECK THE OPERATION OF THE LEFT REAR SPEAKER
- Turn the ignition off.
- Disconnect the Amplified Left Rear Speaker harness connector.
- Turn the ignition on.
- Turn the radio on and turn the volume to mid level.
- Adjust the speakers to the rear and center.
- With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left Rear Speaker circuits in the Amplified Left Rear Speaker harness connector.
Is the voltage present greater than 1 volt?
Yes
- Replace the Left Rear Speaker in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Go to step 3
- CHECK THE (X205) LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN
- Turn the ignition off.
- Disconnect the Amplifier C2 harness connector.
- Measure the resistance of the (X205) Left Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector.
Is the resistance below 2.0 Ohms?
Yes
- Go to step 4
No
- Repair the (X205) Left Rear Speaker (+) circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- CHECK THE (X295) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN
- Measure the resistance of the (X295) Left Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector.
Is the resistance below 2.0 Ohms?
Yes
- Replace the Amplifier in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Repair the (X295) Left Rear Speaker (-) circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- Measure the resistance of the (X295) Left Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector.