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HOMESERVICE MANUALSDODGE AND RAM2013JOURNEY CREW, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSTELEMATICS GATEWAY MODULE - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB143A-12-MICROPHONE 1 - CIRCUIT SHORT TO BATTERYDIAGNOSTIC TEST
2013 Dodge and Ram Journey Crew, AWD

Diagnostic Test

2013 Dodge and Ram Journey Crew, AWDSECTION Diagnostic Test
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    Verify the connection of the inside rearview mirror harness connector.

    1. Ignition on, engine not running.
    2. With the scan tool, read the DTCs.

      Does the scan tool display: B143A-12-MICROPHONE 1 - CIRCUIT SHORT TO BATTERY as active?

      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 INSIDE REARVIEW MIRROR 
    1. Turn the ignition off.
    2. Disconnect the Inside Rearview Mirror harness connector.
    3. Ignition on, engine not running.
    4. Wait 20 seconds.
    5. With the scan tool, read the active DTCs.

      Does the scan tool display: B143A-12-MICROPHONE 1 - CIRCUIT SHORT TO BATTERY as active?

      Yes 

      • Go To  3

      No 

      • Replace the Inside Rearview Mirror in accordance with the Service Information. Refer to REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  3. CHECK THE (X712) MICROPHONE 1 IN (+) CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the TGW connector.
    3. Ignition on, engine not running.
    4. Measure the voltage between the (X712) Microphone 1 IN (+) circuit and ground.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (X712) Microphone 1 IN (+) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. CHECK THE (X792) MICROPHONE 1 IN (-) CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Measure the voltage between the (X712) Microphone 1 IN (+) circuit and ground.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (X792) Microphone 1 IN (-) circuit.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

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