Step  | Action  | Yes  | No  | 
|---|---|---|---|
1  | Attempt to operate the vehicle power door locks. Are the power door locks operational?  | Go to Step 2  | Go to Body Control Module Inoperative in Body Control Systems  | 
2  | Check for body control module (BCM) DTCs. Refer to Diagnostic Trouble Code (DTC) Displaying in Body Control Systems. Does the BCM sound and flash DTC 2?  | Go to Step 3  | |
3  | Does the BCM sound and flash DTC 3?  | Go to DTC 3 Courtesy Lamps  | Go to Step 4  | 
4  | Does the BCM display or sound any other DTCs?  | Go to Diagnostic Trouble Code (DTC) List/Type in Body Control Systems  |