Automatic Transmission/Transaxle: Testing and Inspection

Inspection and Verification

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle.

NOTE:
If the control module/transmission is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new module/transmission.

NOTE:
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.
1 Verify the customer concern.
2 Visually inspect for obvious signs of mechanical, electrical or hydraulic faults.





3 If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4 Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes before moving onto the diagnostic trouble code index.
- Make sure that all diagnostic trouble codes are cleared following rectification.