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 Radio DTCs.
2. Using the scan tool, record and erase the Radio DTCs.
3. Turn the Radio on.
4. Adjust the speakers to the rear and center.
5. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B140B-REAR LEFT 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 - BODY VERIFICATION TEST .
CHECK THE AMPLIFIER

Fig 1: Checking Amplifier Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C1 harness connector.
3. Connect a jumper wire between the (X51) Left Rear Audio (+) circuit and the (X57) Left Rear Audio (-) circuits.
4. Turn the ignition on.
5. Turn the Radio on.
6. Adjust the speakers to the rear and center.
7. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B140B-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT OPEN?
  
  Yes
  - Go To 3
  No
  - Replace the Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
CHECK THE (X51) LEFT REAR AUDIO (+) CIRCUIT FOR AN OPEN

Fig 2: Checking Left Rear Audio (+) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Radio C2 harness connector.
3. Measure the resistance of (X51) Left Rear Audio (+) circuit between the Radio C2 connector and the Amplifier C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 4
  No
  - Repair open in the (X51) Left Rear Audio (+) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
CHECK THE (X57) LEFT REAR AUDIO (-) CIRCUIT FOR AN OPEN

Fig 3: Checking Left Rear Audio (-) Circuit For Open
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of (X57) Left Rear Audio (-) circuit between the Radio C2 connector, and the Amplifier C1 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Radio in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Repair open in the (X57) Left Rear Audio (-) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .