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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio (Radio) - Electrical Diagnostics >> DTC Troubleshooting >> B140F-Rear Right Audio Speaker Output Circuit Open - Premium >> Diagnostic Test

Diagnostic Test

  1. 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 Radio DTCs.

    2. Using the scan tool, record and erase the Radio DTCs.
    3. Turn the Radio on.
    4. Adjust the speakers to the rear and center.
    5. Using the scan tool, read the active Radio DTCs.

      Does the scan tool read: B140F-REAR RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW?

      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 .
  2. CHECK THE AMPLIFIER 
    Fig 1: Checking The Operation Of The Left Rear Audio
    GC0137466Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Amplifier C1 harness connector.
    3. Connect a jumper wire between the (X52) Left Rear Audio (+) circuit and the (X58) Left Rear Audio (-) circuits.
    4. Turn the ignition on.
    5. Turn the Radio on.
    6. Adjust the speakers to the rear and center.
    7. Using the scan tool, read the active Radio DTCs.

      Does the scan tool read: B140F-REAR RIGHT AUDIO SPEAKER OUTPUT CIRCUIT OPEN?

      Yes 

      • Go To  3

      No 

      • Replace the Amplifier in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. CHECK THE (X52) RIGHT REAR AUDIO (+) CIRCUIT FOR AN OPEN 
    Fig 2: Checking Right Rear Audio (+) Circuit For An Open
    GC0149223Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Radio C2 harness connector.
    3. Measure the resistance of the (X52) Right Rear Audio (+) circuit between the Radio C2 connector and the Amplifier C1 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair an open in the (X52) Right Rear Audio (+) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (X58) RIGHT REAR AUDIO (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Right Rear Audio (-) Circuit For An Open
    GC0149224Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (X58) Right Rear Audio (-) circuit between the Radio C2 harness connector, and the Amplifier C1 harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Replace the Radio in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Repair an open in the (X58) Right Rear Audio (-) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .