Diagnostic Test
- TRANSMISSION DTCS PRESENT
- Ignition on, engine not running.
- With the scan tool, read DTCs in the Transmission Control Module.
Are there any DTCs present?
Yes
- Perform the appropriate diagnostic procedure. Refer to TCM - DIAGNOSIS AND TESTING .
No
- Replace the Final Drive Control Module (FDCM) in accordance with the Service Information.
- Perform the TRANSFER CASE VERIFICATION TEST. Refer to TRANSFER CASE VERIFICATION TEST .