Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on, then off, and then on again.
2. With the scan tool, read Radio DTCs.
  Does the scan tool display active: B140A-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT HIGH?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
CHECK FOR VOLTAGE ON THE (X51) SPEAKER (+) CIRCUIT

Fig 1: Checking For Voltage On Speaker (+) Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Radio C1 harness connector.
3. Disconnect the Left Rear Speaker harness connector.
4. Measure for voltage on the (X51) Speaker (+) circuit.
  Is the voltage above 10.0 volts?
  
  Yes
  - Repair the (X51) Speaker (+) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Go to step 3
CHECK FOR VOLTAGE ON THE (X57) SPEAKER (-) CIRCUIT

Fig 2: Checking For Voltage On Speaker (-) Circuit
Courtesy of CHRYSLER LLC
1. Measure for voltage on the (X57) Speaker (-) circuit.
  Is the voltage above 10.0 volts?
  
  Yes
  - Repair the (X57) Speaker (-) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Replace the Radio in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .