Lighting System Headlight (Hi-Beam) Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (HEAD LIGHT SW [HEAD])

PERFORM ACTIVE TEST USING GTS (HEAD HI RELAY)

INSPECT HEADLIGHT RELAY (H-LP HI OR H-LP RH)

CHECK HARNESS AND CONNECTOR (BATTERY - HEADLIGHT RELAY [H-LP HI OR H-LP RH])

CHECK HARNESS AND CONNECTOR (HEADLIGHT RELAY [H-LP HI OR H-LP RH] - HEADLIGHT ASSEMBLY

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - HEADLIGHT RELAY [H-LP HI OR H-LP RH]

CHECK HARNESS AND CONNECTOR (HEADLIGHT RELAY [H-LP HI OR H-LP RH] - HEADLIGHT ASSEMBLY

INSPECT HEADLIGHT ASSEMBLY

LIGHTING SYSTEM - Headlight (HI-BEAM) Circuit


DESCRIPTION

The main body ECU receives a headlight hi switch information signal from the light control switch, and illuminates the headlight high beam.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight (Hi-Beam) Circuit


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight (Hi-Beam) Circuit


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight (Hi-Beam) Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
1.READ VALUE USING GTS (HEAD LIGHT SW [HEAD])

  1. Operate the GTS according to the display and select the Data List (Click here).

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Head Light SW (Head)
    		Headlight switch signal / ON or OFF
    		ON: Headlight switch (Head) on
    OFF: Headlight switch (Head) off
    		-
    OK:
    Normal conditions listed above are displayed.


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.PERFORM ACTIVE TEST USING GTS (HEAD HI RELAY)

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

    Main Body
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Head Light Hi
    		Headlight (Hi)
    		ON or OFF
    		-
    OK:
    Headlight high beam turns on/turns off.
    Result
    Result
    		Proceed to
    Headlights (Both high beams turn on) (for LHD)
    		A
    Headlights (Both high beams turn on) (for RHD)
    		B
    Headlights (Neither high beam turns on)
    		C
    Headlight on one side (High beam does not turn on)
    		D
    Headlight on one side (High beam does not turn on) [for Halogen Headlight]
    		E


B
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

C
Go to step 3

D
Go to step 7

E
REPLACE HEADLIGHT ASSEMBLY (Click here)
A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

3.INSPECT HEADLIGHT RELAY (H-LP HI OR H-LP RH)

  1. Remove the H-LP HI or H-LP RH relay from the engine room relay block, junction block.

  1. Inspect the H-LP HI or H-LP RH relay (Click here).



NG
REPLACE HEADLIGHT RELAY (H-LP HI OR H-LP RH)
OK


4.CHECK HARNESS AND CONNECTOR (BATTERY - HEADLIGHT RELAY [H-LP HI OR H-LP RH])


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight (Hi-Beam) Circuit

  1. Remove the H-LP HI or H-LP RH relay from the engine room relay block, junction block.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    Headlight relay terminal 1- Body ground
    		Always
    		11 to 14 V
    Headlight relay terminal 3 - Body ground
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Headlight Relay [H-LP HI or H-LP RH])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (HEADLIGHT RELAY [H-LP HI OR H-LP RH] - HEADLIGHT ASSEMBLY

  1. Remove the H-LP HI or H-LP RH relay from the engine room relay block, junction block.

  1. Disconnect the A65*1 or A68*2 headlight 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
    Headlight relay terminal 5 - A65-3 (HI)
    		Always
    		Below 1 Ω
    Headlight relay terminal 5 - Body ground
    		Always
    		10 kΩ or higher
    for RH
    Tester Connection
    		Condition
    		Specified Condition
    Headlight relay terminal 5 - A68-3 (HI)
    		Always
    		Below 1 Ω
    Headlight relay terminal 5 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - HEADLIGHT RELAY [H-LP HI OR H-LP RH]

  1. Remove the H-LP HI or H-LP RH relay from the engine room relay block, junction block.

  1. Remove the cowl side junction block LH.

  1. Disconnect the E118 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Headlight relay terminal 2 - E118-1 (DIM)
    		Always
    		Below 1 Ω
    E118-1 (DIM) - Body ground
    		Always
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    OK (for LHD)
    		A
    OK (for RHD)
    		B
    NG
    		C


B
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)

7.CHECK HARNESS AND CONNECTOR (HEADLIGHT RELAY [H-LP HI OR H-LP RH] - HEADLIGHT ASSEMBLY

  1. Remove the H-LP HI or H-LP RH relay from the engine room relay block, junction block.

  1. Disconnect the A65*1 or A68*2 headlight 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
    Headlight relay terminal 5 - A65-3 (HI)
    		Always
    		Below 1 Ω
    A65-6 (E) - Body ground
    		Always
    Headlight relay terminal 5 - Body ground
    		Always
    		10 kΩ or higher
    for RH
    Tester Connection
    		Condition
    		Specified Condition
    Headlight relay terminal 5 - A68-3 (HI)
    		Always
    		Below 1 Ω
    A68-6 (E) - Body ground
    		Always
    Headlight relay terminal 5 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


8.INSPECT HEADLIGHT ASSEMBLY

  1. for LED Headlight

    1. Remove the headlight assembly (Click here).

  1. for Halogen Headlight and LED Headlight

    1. Remove the headlight assembly (Click here).

  1. for LED Headlight

    1. Remove the headlight unit from the headlight assembly (Click here).

  1. for Halogen Headlight and LED Headlight

    1. Remove the headlight unit from the headlight assembly (Click here).

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

    Standard Resistance:
    for LED Headlight
    Tester Connection
    		Condition
    		Specified Condition
    A-3 (B) - B-1
    		Always
    		Below 1 Ω
    A-6 (E) - B-2
    		Always
    		10 kΩ or higher
    for Halogen Headlight and LED Headlight
    Tester Connection
    		Condition
    		Specified Condition
    A-3 (B) - B-1
    		Always
    		Below 1 Ω
    A-6 (E) - B-2
    		Always
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    OK (for LED Headlight)
    		A
    OK (for Halogen Headlight and LED Headlight)
    		B
    NG (for LED Headlight)
    		C
    NG (for Halogen Headlight and LED Headlight)
    		D


B
REPLACE HEADLIGHT UNIT (Click here)

C
REPLACE HEADLIGHT ASSEMBLY (Click here)

D
REPLACE HEADLIGHT ASSEMBLY (Click here)
A

REPLACE HEADLIGHT UNIT (Click here)