TCM Inspection: Notes

WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

The TCM terminal voltages vary with changes in measuring and vehicle conditions. Always carry out a total inspection of the input and output systems, and the TCM to determine the cause of trouble. Otherwise, a mis-diagnosis could occur.

Measure the voltage at each terminal.

If any incorrect voltage is detected, inspect the related system (s), wiring harnesses and connector (s) referring to the Action column. See Figure-Figure .