Diagnostic Test

TRANSMISSION CONTROL MODULE (TCM) DTCS PRESENT
1. Ignition on, engine not running.
2. With the scan tool, read DTCs in the TCM.
  Are there any DTCs present?
  
  Yes
  - Refer to the DTC INDEX and perform the appropriate diagnostic procedure.
  No
  - Replace the Drive Train Control Module (DTCM) in accordance with the Service Information. Refer to MODULE, DRIVETRAIN CONTROL, REMOVAL .
  - Perform the DTCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .