Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN INTERMITTENT CONDITION
NOTE:
This DTC will set when either the Left or Right Backup Lamp bulb is inoperative or missing. Fix any other Reverse Lamp related DTCs that are present before proceeding with this test
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. With the brakes firmly applied, shift the gear selector into REVERSE.
4. With the scan tool, read 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 .
CHECK FOR AN INOPERATIVE BACKUP LAMP
1. With the brakes firmly applied, shift the gear selector into REVERSE.
2. Visual inspect the Left and Right Backup Lamps.
  Are one of the Backup Lamps inoperative?
  
  Yes
  - Replace the Left or Right Backup Lamp bulb in accordance with the Service Information. Refer to LAMP, TAIL STOP TURN, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE BCM FOR CORRECT OPERATION
1. Shift the gear selector into PARK.
2. Turn the ignition off.
3. Disconnect the Left and Right Tail Lamp Assembly harness connectors.
4. Connect a 12-volt test light between ground and the (L15) Left Backup Lamp Driver circuit at the Left Tail Lamp Assembly harness connector.
5. Turn the ignition on.
6. With the brakes firmly applied, shift the gear selector into REVERSE.
7. Repeat these steps for the (L16) Right Backup Lamp Driver circuit at the Right Tail Lamp Assembly harness connector.
  Does the test light illuminate brightly for both connections?
  
  Yes
  - Replace the Left or Right Backup Lamp Bulb based on the original concern in accordance with the Service Information. Refer to LAMP, TAIL STOP TURN, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .