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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio (Radio) - Electrical Diagnostics >> DTC Troubleshooting >> B1407-Front Right Audio Speaker Output Circuit Open >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN INTERMITTENT CONDITION 
    NOTE:

    This vehicle has a Front Tweeter wired in parallel with the Front Speaker.

    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 front and center.
    5. Using the scan tool, read the active Radio DTCs.

      Does the scan tool read: B1407-FRONT RIGHT 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 .
  2. CHECK THE RIGHT FRONT SPEAKER 
    Fig 1: Checking Resistance Of Right Front Speaker
    GC0149124Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Right Front 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 Front Speaker in accordance with the Service Information. An open Tweeter will not set this code.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. CHECK THE (X202) RIGHT FRONT SPEAKER (+) CIRCUIT FOR AN OPEN 
    Fig 2: Checking Right Front Speaker (+) Circuit For An Open
    GC0149127Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the Radio C2 harness connector.
    3. Measure the resistance of the (X202) Right Front Speaker (+) circuit between the Radio C2 connector and the Right Front Speaker harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair open in the (X202) Right Front Speaker (+) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  4. CHECK THE (X292) RIGHT FRONT SPEAKER (-) CIRCUIT FOR AN OPEN 
    Fig 3: Checking Right Front Speaker (-) Circuit For An Open
    GC0149129Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance of the (X292) Right Front Speaker (-) circuit between the Radio C2 connector and the Right Front 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 open in the (X292) Right Front Speaker (-) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .