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Home >> Jeep >> 2015 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> (Audio (Radio) - Electrical Diagnostics) >> DTC Troubleshooting >> DTC B140B: -Rear Left 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: 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 STANDARD PROCEDURE - BODY VERIFICATION TEST .
  2. CHECK THE LEFT REAR SPEAKER 
    Fig 1: Checking Left Rear Speaker
    GC0138656Courtesy of CHRYSLER GROUP, 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 

      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 GROUP, 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 

  4. CHECK THE (X295) LEFT REAR SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Left Rear Speaker (-) Circuit For An Open
    GC0138658Courtesy of CHRYSLER GROUP, 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 

      No