CHECK TCM SIGNAL.

1) Lift up the vehicle and support it with rigid racks.

2) Drive the vehicle faster than 10 km/h (6 MPH).

WARNING:

Be careful not to get caught in the running wheels.

3) Measure the voltage between TCM connector and chassis ground.

Connector & terminal

(B55) No. 21 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 or more than 5 V?

Yes No

Check the TCM.