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: B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW?
  
  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 AMPLIFIED LIFTGATE SPEAKER FOR A SHORT TO GROUND

Fig 1: Checking Amplified Liftgate Speaker For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplified Liftgate Speaker harness connector.
3. Turn the ignition on, engine not running.
4. With the scan tool, read the active DTCs.
  Does the scan tool display: B147F-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT LOW?
  
  Yes
  - Go To 3
  No
  - Replace the Amplified Liftgate Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
CHECK THE (X214) AMPLIFIED LIFTGATE SPEAKER 1 (+) CIRCUIT FOR A SHORT TO GROUND

Fig 2: Measuring Resistance Between Ground & Amplified Subwoofer 1 (+) Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance between ground and the (X214) Amplified Liftgate Speaker 1 (+) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X214) Amplified Liftgate Speaker 1 (+) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (X284) AMPLIFIED LIFTGATE SPEAKER 1 (-) CIRCUIT FOR A SHORT TO GROUND

Fig 3: Measuring Resistance Between Ground & Amplified Subwoofer 1 (-) Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (X284) Amplified Liftgate Speaker 1 (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X284) Amplified Liftgate Speaker 1 (-) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Replace the Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .