Diagnostic Test

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 .
CHECK THE CARGO LAMP
1. Turn the ignition off.
2. Disconnect the Cargo Lamp.
3. Turn the ignition on.
4. With the scan tool, read the Body Control Module (BCM) DTCs.
  Is the DTC active?
  
  Yes
  - Go To 3
  No
  - Replace the Cargo Lamp in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (M25) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the BCM C6/F harness connector.
3. Check for continuity between ground and the (M25) Courtesy Lamps Driver circuit at the Cargo Lamp harness connector.
  Is there continuity between ground and the (M25) Courtesy Lamps Driver circuit?
  
  Yes
  - Repair the short to ground in the (M25) Courtesy Lamps Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .