CHECK REGISTRATION CONNECTOR INPUT VOLTAGE.

1) Measure the voltage between the body integrated unit harness connector and chassis ground.

Connector & terminal

(B281) No. 13 (+) — Chassis ground (−):

QUESTION

Is the voltage 10 V or more?

Yes No

Disconnect the registration connector if it is connected. Or, check the harness between the body integrated unit and ground for short circuits. If there are no problems,