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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS B1208-11 To B182C-13 >> DTC Troubleshooting >> B16AB-15-Trunk Lamp Control - Circuit Short To Battery Or Open >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. Turn the Cargo Lamp on.
    3. With the scan tool, read the Body Control Module (BCM) DTCs and record on the repair order.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • 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. If no problems are found, test complete.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  2. CHECK THE (M25) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the Cargo Lamp harness connector.
    3. Disconnect the BCM C6/F harness connector.
    4. Turn the ignition on.
    5. Measure the voltage of the (M25) Courtesy Lamps Driver circuit at the Cargo Lamp harness connector.

      Is an voltage present?

      Yes 

      • Repair the short to voltage in the (M25) Courtesy Lamps Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (M25) COURTESY LAMPS DRIVER CIRCUIT FOR AN OPEN 
    1. Turn the ignition off.
    2. Measure the resistance of the (M25) Courtesy Lamps Driver circuit between the Cargo Lamp harness connector and the BCM C6/F harness connector.

      Is the resistance above 3.0 Ohms?

      Yes 

      • Repair the open in the (M25) Courtesy Lamps Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  4
  4. CHECK THE (Z922) GROUND CIRCUIT FOR AN OPEN 
    1. Turn the ignition off.
    2. Measure the resistance between ground and the (Z922) Ground circuit at the Cargo Lamp harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Repair the (Z922) Ground circuit for an open or high resistance.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Replace the Cargo Lamp in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
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