Diagnostic Test

CHECK IF THE DTC IS ACTIVE

NOTE:

Make sure the battery is fully charged before proceeding.

Turn the ignition on.
With the scan tool, read DTCs and record on vehicle work order.
Does the scan tool display this DTC as active?

Yes
- Refer to NO RESPONSE FROM BCM (BODY CONTROL MODULE) and perform the No Response From BCM (Body Control Module) diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.