CHECK HARNESS CONNECTOR BETWEEN BODY INTEGRATED UNIT AND STOP LIGHT SWITCH.

1) Turn the ignition switch to ON.

2) Measure the voltage of harness between the body integrated unit and chassis ground.

Connector & terminal

(B280) No. 2 (+) — Chassis ground (−):

QUESTION

Is the voltage less than 1 V?

Yes No

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