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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 - Base >> 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 RIGHT REAR SPEAKER 
    Fig 1: Checking Resistance Of Right Rear Speaker
    GC0149219Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Right Rear Speaker.
    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 above 5.0 Ohms?

      Yes 

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

      No 

      • Go To  3
  3. CHECK THE (X206) RIGHT REAR SPEAKER (+) CIRCUIT FOR AN OPEN 
    Fig 2: Checking Right Rear Speaker (+) Circuit For An Open
    GC0149220Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Radio C2 harness connector.
    2. Measure the resistance of the (X206) Right Rear Speaker (+) circuit between the Radio C2 connector and the Right Rear Speaker harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair an open in the (X206) Right Rear Speaker (+) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (X296) RIGHT REAR SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Right Rear Speaker (-) Circuit For An Open
    GC0149221Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (X296) Right Rear Speaker (-) circuit between the Radio C2 connector, and the Right Rear Speaker 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 (X296) Right Rear Speaker (-) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .