Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. 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.
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 front and center.
6. Using the scan tool, read the active Amplifier DTCs.
  Does the scan tool display active: B1473-CHANNEL 4 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 RIGHT FRONT SPEAKER

Fig 1: Measuring Resistance Of Speaker Between Two Terminals
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Right Front Speaker harness connector.
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 Right Front Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (X202) RIGHT FRONT SPEAKER (+) CIRCUIT, AND THE (X292) RIGHT FRONT SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER

Fig 2: Measuring Resistance Between Right Front Speaker (+) Circuit & Right Front Speaker (-) Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Measure the resistance between the (X202) Right Front Speaker (+) circuit, and the (X292) Right Front Speaker (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X202) Right Front Speaker (+) circuit for a short to the (X292) Right Front Speaker (-) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Amplifier in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .