Checking Diagnostic Trouble Codes (DTCS) In Central Electronic Module (CEM)

If there are diagnostic trouble codes (DTCs) stored in the central electronic module (CEM) or in the transmission control module (TCM) for communication problems or for the back-up lamps, these must be fault traced first.

Are any diagnostic trouble codes (DTCs) stored in the central electronic module (CEM) or in the transmission control module (TCM) for communication problems or for the back-up lamps? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to CHECKING TRANSMISSION