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. 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 and set the volume to 25.
5. Adjust the speakers to the rear and center.
6. With the scan tool, read the active DTCs.
  Does the scan tool display: B1480-CHANNEL 7 AUDIO SPEAKER OUTPUT CIRCUIT HIGH?
  
  Yes
  - Go to step 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the SYSTEM 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 DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK FOR VOLTAGE ON THE (X300) AMPLIFIED SUBWOOFER 1 (+) CIRCUIT

Fig 1: Checking For Voltage On Amplified Subwoofer 1 (+) Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Radio Amplifier C2 harness connector.
3. Disconnect the Subwoofer Speaker harness connector.
  NOTE: The graphic shows the various Subwoofer Speaker and Subwoofer Amplifier connectors that are used for the various systems. They are shown here for reference only.
4. Turn the ignition on.
5. Measure the voltage between the (X300) Amplified Subwoofer Speaker 1 (+) circuit and ground at the Radio Amplifier connector.
  Is there any voltage present?
  
  Yes
  - Repair the (X300) Amplified Subwoofer 1 (+) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
CHECK FOR VOLTAGE ON THE (X390) AMPLIFIED SUBWOOFER 1 (-) CIRCUIT

Fig 2: Checking For Voltage On Amplified Subwoofer 1 (-) Circuit
Courtesy of CHRYSLER LLC
1. Measure the voltage between the (X390) Amplified Subwoofer 1 (-) circuit and ground.
  Is there any voltage present?
  
  Yes
  - Repair the (X390) Amplified Subwoofer 1 (-) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Radio Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .