Conditions

Transmission Downshifting Faulty
Fault symptoms
CHECK GEARBOX warning lamp on.

TCM in Limp-Home mode.

Conditions
Input speed at downshifting shows a speed above:

225 km/h to 3rd gear.

132 km/h to 2nd gear.

76 km/h to 1st gear.

Diagnostic help
The malfunction primarily indicates mechanical defects and can hardly result from a malfunction in the management system. Transmission wear can result in rough shifting and a non-functional Lock Up.