CHECK INPUT SIGNAL FOR TCM.

1) Connect the connector to TCM and hold switch.

2) Turn the ignition switch to ON (engine OFF).

3) Measure the signal voltage for TCM while the hold switch is OFF.

Connector & terminal

(B55) No. 9 (+) — Chassis ground (−):

QUESTION

Is the voltage 6 V or more?

Yes No

Replace the TCM.