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. With 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. With the scan tool, read the active Amplifier DTCs.
  Does the scan tool display active: B1487-00-CHANNEL 8 AUDIO SPEAKER OUTPUT - CIRCUIT SHORTED TOGETHER?
  
  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 AMPLIFIED SUBWOOFER SPEAKER

Fig 1: Checking Operation Of Amplified Subwoofer Speaker
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Subwoofer Speaker.
3. Measure the resistance of the speaker between the two terminals.
  NOTE:
  The graphic shows the connector for reference only. Measure between the speaker terminals.
  
  Is the resistance of the speaker less than 1 Ohm?
  
  Yes
  - Replace the Subwoofer Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT, AND THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUITS FOR A SHORT TOGETHER

Fig 2: Checking Amplified Subwoofer 2 (+) Circuit & Amplified Subwoofer 2 (-) Circuits For A Short Together
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance between the (X301) Amplified Subwoofer 2 (+) circuit, and the (X391) Amplified Subwoofer 2 (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X301) Amplified Subwoofer 2 (+) circuit, and the (X391) Amplified Subwoofer 2(-) circuit for a short together.
  - 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 .