Headlight Beam Level Control Actuator Circuit

LIGHTING: LIGHTING SYSTEM: Headlight Beam Level Control Actuator Circuit

Headlight Beam Level Control Actuator Circuit

DESCRIPTION

When the actuator receives signals from the headlight beam level control ECU, the step motor is activated and the angle of the reflector in the
headlight will be adjusted.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HEADLIGHT BEAM LEVEL CONTROL ECU




(a) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
OK -- Continue to next step.

2. CHECK WIRE HARNESS (ECU - ACTUATOR)




(a) Disconnect the H1*1 or H2*2 actuator connector.
HINT: *1: for LH side
*2: for RH side
(b) Disconnect the H12 ECU connector.
(c) Measure the resistance of the wire harness side connector.
Standard resistance:
for LH side





for RH side





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE HEADLIGHT UNIT (HEADLIGHT BEAM LEVEL CONTROL ACTUATOR)