Diagnostic Test

2023 Dodge and Ram Durango R/T Premium, AWDSECTION Diagnostic Test
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. Apply the Brake Pedal.
    3. With the scan tool, read BCM DTCs.

      Does the scan tool display this DTC 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 BODY VERIFICATION TEST .
  2. CHECK THE (L52) LEFT STOP LAMP DRIVER CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Release the Brake Pedal.
    2. Turn the ignition off.
    3. Disconnect the Left Tail Lamp Assembly harness connector.
    4. Turn the ignition on.
    5. Measure the voltage on the (L52) Left Stop Lamp Driver circuit at the Left Tail Lamp Assembly harness connector.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (L52) Left Stop Lamp Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (L52) LEFT STOP LAMP DRIVER CIRCUIT FOR AN OPEN 
    1. Turn the ignition off.
    2. Disconnect the BCM C6/F harness connector.
    3. Measure the resistance of the (L52) Left Stop Lamp Driver circuit between the Left Tail Lamp Assembly harness connector and the BCM C6/F harness connector.

      Is the resistance above 3.0 Ohms?

      Yes 

      • Repair the open in the (L52) Left Stop Lamp Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (Z923) GROUND CIRCUIT FOR AN OPEN 
    1. Using a 12-volt test light connected to 12-volts, check the (Z923) Ground circuit at the Left Tail Lamp Assembly harness connector.

      Does the test light illuminate brightly?

      Yes 

      • Go To  5

      No 

      • Repair the open in the (Z923) Ground circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  5. CHECK THE BCM FOR CORRECT OPERATION 
    1. Turn the ignition off.
    2. Connect the BCM C6/F harness connector.
    3. Connect a 12-volt test light between the (L52) Left Stop Lamp Driver circuit and the (Z923) Ground circuit at the Left Tail Lamp Assembly harness connector.
    4. Turn the ignition on.
    5. Apply the Brake Pedal.

      Does the test light illuminate brightly?

      Yes 

      No 

RENDER: 1.0x

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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.