Diagnostic Test

CHECK FOR AN INTERMITTENT CONDITION
1. Turn the ignition on and open one of the front doors.
  NOTE:
  A front door must remain open whenever checking or erasing Amplifier DTCs.
2. Using the scan tool, record and erase the Amplifier DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the Radio on and set the volume to 25.
5. Adjust the speakers to the rear and center.
6. Using 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 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 STANDARD PROCEDURE .
CHECK THE OPERATION OF THE LEFT REAR SPEAKER

Fig 1: Measuring Voltage Of Left Rear Speaker Circuits In Left Rear Speaker Harness Connector
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Left Rear Speaker harness connector.
3. Turn the ignition on.
4. Turn the Radio on with the same settings as in Step 1.
5. With a voltmeter set to read in A/C voltage, measure the voltage of the Amplified Left Rear Speaker circuits in the 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 STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (X303) AMPLIFIED LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN

Fig 2: Checking Amplified Left Rear Speaker (+) Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance of the (X303) Amplified Left Rear Speaker (+) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector.
  NOTE:
  On the Left Rear Speaker harness connector cavity 1 is the (X303) on (JS27) and cavity 3 is the (X303) on (JS41)
  
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair the (X303) Amplified Left Rear Speaker (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (X393) AMPLIFIED LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN

Fig 3: Checking Amplified Left Rear Speaker (--) Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (X393) Amplified Left Rear Speaker (-) circuit between the Amplifier C2 harness connector and the Left Rear Speaker harness connector.
  NOTE:
  On the Left Rear Speaker harness connector cavity 1 is the (X393) on (JS41) and cavity 3 is the (X393) on (JS27)
  
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Replace the Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the (X393) Amplified Left Rear Speaker (-) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .