A/T Diagnosis General Description

A/T Diagnosis General Description

This vehicle is equipped with an electronic transmission control system, which control the automatic shift up and shift down timing, TCC operation, etc. suitably to vehicle driving conditions.

TCM has an On-Board Diagnosis system which detects a malfunction in this system and abnormality of those parts that influence the engine exhaust emission.

When diagnosing a trouble in the transmission including this system, be sure to have full understanding of the outline of On-Board Diagnostic System Description On-Board Diagnostic System Description
and each item in Precautions in Diagnosing Trouble Precautions in Diagnosing Trouble
and execute diagnosis according to A/T System Check A/T System Check
to obtain correct result smoothly.