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. Turn the radio on.
3. With the scan tool, erase the DTCs.
4. With the scan tool, reset the Amplifier.
5. With the scan tool, read the active DTCs.
  Does the scan tool display: B1486-CHANNEL 8 AUDIO SPEAKER OUTPUT CIRCUIT OPEN?
  
  Yes
  - Go to step 2
  No
  - The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK THE OPERATION OF THE SUBWOOFER SPEAKER

Fig 1: Checking Operation Of Subwoofer Speaker
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Subwoofer Speaker harness connector.
3. Turn the ignition on.
4. Turn the radio on and turn the volume to 25.
5. Adjust the speakers to the rear and center.
6. Adjust the Bass to mid level.
7. With a voltmeter set to read in A/C voltage, measure the voltage of the Subwoofer Speaker circuits in the Subwoofer Speaker harness connector.
  Is the voltage above 1 volt?
  
  Yes
  - Replace the Subwoofer Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
CHECK THE (X301) AMPLIFIED SUBWOOFER 2 (+) CIRCUIT FOR AN OPEN

Fig 2: Checking Amplified Subwoofer 2 (+) Circuit For An Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance of the (X301) Amplified Subwoofer 2 (+) circuit between the Amplifier C2 harness connector and the Subwoofer Speaker harness connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Go to step 4
  No
  - Repair the (X301) Amplified Subwoofer 2 (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK THE (X391) AMPLIFIED SUBWOOFER 2 (-) CIRCUIT FOR AN OPEN

Fig 3: Checking Amplified Subwoofer 2 (-) Circuit For An Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (X391) Amplified Subwoofer 2 (-) circuit between the Amplifier C2 harness connector and the Subwoofer Speaker harness connector.
  Is the resistance below 2.0 Ohms?
  
  Yes
  - Replace the Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (X391) Amplified Subwoofer 2 (-) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .