Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

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.
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: B147E-11-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND?
  
  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 SUBWOOFER SPEAKER
1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Disconnect the Subwoofer Speaker harness connector.
5. Turn the ignition on.
6. Turn the Radio on.
7. Using the scan tool, read the active Amplifier DTCs.
  Does the scan tool display active: B147E-11-CHANNEL 7 AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND?
  
  Yes
  - Go To 3
  No
  - Replace the Subwoofer Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT FOR A SHORT TO GROUND

Fig 1: Checking Amplified Subwoofer 1 (+) Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Amplifier C2 harness connector.
2. Disconnect the Subwoofer Speaker harness connector.
3. Measure the resistance between ground and the (X300) Amplified Subwoofer 1 (+) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X300) Amplified Subwoofer 1 (+) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking Amplified Subwoofer 1 (-) Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (X390) Amplified Subwoofer 1 (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X390) Amplified Subwoofer 1 (-) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Amplifier in accordance with the Service Information. Refer to AMPLIFIER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .