CHECK HARNESS BETWEEN ROOM LIGHT AND BODY INTEGRATED UNIT.

1) Disconnect the body integrated unit harness connector and room light harness connector.

2) Measure the resistance between the body integrated unit harness connector terminal and room light harness connector terminal.

Connector & terminal

(B279) No. 5 — (R52) No. 2:

QUESTION

Is the resistance less than 10 Ω?

Yes No

The room light operation circuit is OK.

Check the harness for open or short between body integrated unit and room light.