CHECK HEADLIGHT ON SIGNAL.

1) Disconnect the auto headlight beam leveler control module connector.

2) Turn the ignition switch to ON.

3) Turn the headlight switch to ON.

4) Measure the voltage between auto headlight beam leveler control module connector and chassis ground.

Connector & terminal

(B150) No. 3 (+) — Chassis ground (−):

QUESTION

Is the voltage 12 V?

Yes No

Repair the open circuit or poor contact of the connector in the harness between headlight relay and auto headlight beam leveler control module.