LIGHTING SYSTEM > Headlight Beam Level Control Actuator Circuit

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DESCRIPTION

The headlight level control motor receives signals from the headlight beam level control ECU to operate. The headlight beam level control ECU receives signals regarding operating conditions of the headlight beam level control motor.

WIRING DIAGRAM


E109575E01


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (AFS ECU - HEADLIGHT)

E107825E02

  1. Disconnect the headlight connector on the headlight beam level control motor side and headlight beam level control ECU connector.

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:

    LH side 
    Tester Connection
    		Condition
    		Specified Condition
    A30-29 (LL1+) - B11-15 (LL1+)
    		Always
    		Below 1 Ω
    A30-30 (LL1-) - B11-14 (LL1-)
    		Always
    		Below 1 Ω
    A30-31 (LL2+) - B11-13 (LL2+)
    		Always
    		Below 1 Ω
    A30-32 (LL2-) - B11-12 (LL2-)
    		Always
    		Below 1 Ω
    A30-29 (LL1+) or B11-15 (LL1+) - Body ground
    		Always
    		10 kΩ or higher
    A30-30 (LL1-) or B11-14 (LL1-) - Body ground
    		Always
    		10 kΩ or higher
    A30-31 (LL2+) or B11-13 (LL2+) - Body ground
    		Always
    		10 kΩ or higher
    A30-32 (LL2-) or B11-12 (LL2-) - Body ground
    		Always
    		10 kΩ or higher

    RH side 
    Tester Connection
    		Condition
    		Specified Condition
    A30-13 (LR1+) - B2-15 (LR1+)
    		Always
    		Below 1 Ω
    A30-14 (LR1-) - B2-14 (LR1-)
    		Always
    		Below 1 Ω
    A30-15 (LR2+) - B2-13 (LR2+)
    		Always
    		Below 1 Ω
    A30-16 (LR2-) - B2-12 (LR2-)
    		Always
    		Below 1 Ω
    A30-13 (LR1+) or B2-15 (LR1+) - Body ground
    		Always
    		10 kΩ or higher
    A30-14 (LR1-) or B2-14 (LR1-) - Body ground
    		Always
    		10 kΩ or higher
    A30-15 (LR2+) or B2-13 (LR2+) - Body ground
    		Always
    		10 kΩ or higher
    A30-16 (LR2-) or B2-12 (LR2-) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


2.INSPECT HEADLIGHT BEAM LEVEL CONTROL MOTOR
E107709E03

  1. Measure the resistance of the motor.

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		Always
    		5.8 to 12.5 Ω
    3 - 4
    		Always
    		5.8 to 12.5 Ω

    HINT:
    Measure the resistance after the headlight has cooled.



NG
REPLACE HEADLIGHT ASSEMBLY
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE