Diagnostic Test

CHECK FOR AN ACTIVE DTC 

1. Ignition on, engine not running.
2. With the scan tool, select view DTCs.

   Does the scan tool display this DTC as active?

   Yes 

   • Refer to  DTC INDEX  and perform the U0002-00-CAN C BUS OFF PERFORMANCE diagnostic procedure.

   No 

   • Refer to  DIAGNOSIS AND TESTING  and perform the Stored Lost Communication DTCs diagnostic procedure.