CHECK HARNESS CONNECTOR BETWEEN TCM AND STOP LIGHT SWITCH.

1) Turn the ignition switch to ON.

2) Measure the voltage of harness between TCM and chassis ground.

Connector & terminal

(B55) No. 20 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

Repair the short circuit of harness between TCM and stop light switch.