Lighting System Headlight Beam Level Control Actuator Circuit

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Lighting (Ext). Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEADLIGHT LEVELING MOTOR)

CHECK HARNESS AND CONNECTOR (HEADLIGHT UNIT ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)

INSPECT HEADLIGHT UNIT ASSEMBLY

CHECK HEADLIGHT LEVELING MOTOR

LIGHTING SYSTEM - Headlight Beam Level Control Actuator Circuit


DESCRIPTION

The headlight leveling ECU actuates the headlight leveling motors according to the vehicle conditions.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Beam Level Control Actuator Circuit


INSPECTION PROCEDURE

NOTICE:
After replacing the headlight leveling ECU, initialization of the ECU is necessary (Click here).
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (HEADLIGHT LEVELING MOTOR)

  1. Using the intelligent tester, perform the Active Test (Click here).

    HL Auto Leveling
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Drive The Leveling Motor UP*
    		Headlight leveling motor upward operation
    		ON/OFF
    		ON: Move up
    OFF: Stop
    Drive The Leveling Motor DOWN*
    		Headlight leveling motor downward operation
    		ON/OFF
    		ON: Move down
    OFF: Stop
    1. *: Perform the Active Test with the engine running and vehicle stopped.
    OK:
    Headlight leveling motors operate normally.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.CHECK HARNESS AND CONNECTOR (HEADLIGHT UNIT ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)

  1. Disconnect the E109 headlight leveling ECU connector.

  1. Disconnect the A54*1 or A58*2 headlight leveling motor connector.

    1. *1: for LH
    2. *2: for RH

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    for LH
    Tester Connection
    		Condition
    		Specified Condition
    E109-11 (LH+) - A54-8 (LHIG)
    		Always
    		Below 1 Ω
    E109-18 (LHT) - A54-3 (LH T)
    		Always
    		Below 1 Ω
    E109-24 (LH-) - A54-4 (LH E)
    		Always
    		Below 1 Ω
    E109-11 (LH+) - Body ground
    		Always
    		10 kΩ or higher
    E109-18 (LHT) - Body ground
    		Always
    		10 kΩ or higher
    E109-24 (LH-) - Body ground
    		Always
    		10 kΩ or higher
    for RH
    Tester Connection
    		Condition
    		Specified Condition
    E109-10 (RH+) - A58-8 (RHIG)
    		Always
    		Below 1 Ω
    E109-17 (RHT) - A58-3 (RH T)
    		Always
    		Below 1 Ω
    E109-23 (RH-) - A58-4 (RH E)
    		Always
    		Below 1 Ω
    E109-10 (RH+) - Body ground
    		Always
    		10 kΩ or higher
    E109-17 (RHT) - Body ground
    		Always
    		10 kΩ or higher
    E109-23 (RH-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT HEADLIGHT UNIT ASSEMBLY


  1. Remove the headlight unit (Click here).


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Beam Level Control Actuator Circuit


    Text in Illustration
    *a
    		Component without harness connected
    (Headlight Unit Assembly LH)
    		*b
    		Component without harness connected
    (Headlight Unit Assembly RH)
    *c
    		Front view of wire harness connector
    (to Headlight Leveling Motor LH)
    		*d
    		Front view of wire harness connector
    (to Headlight Leveling Motor RH)

  1. Disconnect the headlight leveling motor connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    for LH:
    Tester Connection
    		Condition
    		Specified Condition
    8 (LHIG) - 3
    		Always
    		Below 1 Ω
    3 (LH T) - 2
    4 (LH E) - 1
    for RH:
    Tester Connection
    		Condition
    		Specified Condition
    8 (RHIG) - 3
    		Always
    		Below 1 Ω
    3 (RH T) - 2
    4 (RH E) - 1


NG
REPLACE HEADLIGHT UNIT ASSEMBLY (Click here)
OK


4.CHECK HEADLIGHT LEVELING MOTOR

  1. Temporarily replace the headlight leveling motor with a new or normally functioning one (Click here).

  1. Perform the Active Test of the leveling motors (Click here).

    OK:
    Headlight leveling motors operate normally.
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for LHD)
    		B
    NG (for RHD)
    		C


B
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)

C
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)
A

END (HEADLIGHT LEVELING MOTOR WAS DEFECTIVE)