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HOMESERVICE MANUALSJEEP2011LIBERTY LIMITED, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSAUDIO (RADIO) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB140B-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT OPEN - BASEDIAGNOSTIC TEST
2011 Jeep Liberty Limited, 4WD, Automatic

Diagnostic Test

2011 Jeep Liberty Limited, 4WD, AutomaticSECTION 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: B140B-REAR LEFT AUDIO SPEAKER OUTPUT CIRCUIT OPEN?

      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 BODY VERIFICATION TEST .
  2. CHECK THE LEFT REAR SPEAKER 
    Fig 1: Checking Left Rear Speaker
    GC0138656Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Left 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 Left Rear Speaker in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3.
  3. CHECK THE (X205) LEFT REAR SPEAKER (+) CIRCUIT FOR AN OPEN 
    Fig 2: Checking Left Rear Speaker (+) Circuit For An Open
    GC0138657Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Radio C2 harness connector.
    3. Measure the resistance of (X205) Left Rear Speaker (+) circuit between the Radio C2 connector, and the Left Rear Speaker harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4.

      No 

      • Repair open in the (X205) Left Rear Speaker (+) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  4. CHECK THE (X295) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Left Rear Speaker (-) Circuit For An Open
    GC0138658Courtesy of CHRYSLER LLC
    1. Measure the resistance of (X295) Left Rear Speaker (-) circuit between the Radio C2 connector, and the Left 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 BODY VERIFICATION TEST .

      No 

      • Repair open in the (X295) Left Rear Speaker (-) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.