Lighting System Headlight Leveling Ecu Power Source Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE TYPE

READ VALUE USING GTS (IGNITION POWER SUPPLY)

CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - BATTERY AND BODY GROUND)

READ VALUE USING GTS (IGNITION POWER SUPPLY)

CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - BATTERY AND BODY GROUND)

LIGHTING SYSTEM - Headlight Leveling ECU Power Source Circuit


DESCRIPTION

This circuit detects the state of the ignition switch, and sends it to the headlight leveling ECU*1 or headlight swivel ECU*2.
  1. *1: w/ Static Headlight Auto Leveling
  2. *2: w/ Dynamic Headlight Auto Leveling

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit


INSPECTION PROCEDURE

NOTICE:
  1. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
  2. After replacing the headlight leveling ECU*1 or headlight swivel ECU*2, initialization of the ECU is necessary (Click here).
  1. *1: w/ Static Headlight Auto Leveling
  2. *2: w/ Dynamic Headlight Auto Leveling
1.CHECK VEHICLE TYPE

  1. Check the vehicle type.

    Result
    Result
    		Proceed to
    w/ Static Headlight Auto Leveling
    		A
    w/ Dynamic Headlight Auto Leveling
    		B


B
Go to step 4
A


2.READ VALUE USING GTS (IGNITION POWER SUPPLY)

  1. Using the GTS, read the Data List (Click here).

    HL Auto Leveling
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    +B
    		Ignition power supply voltage value / 0 to 19.75 V
    		11 to 14 V
    		-
    OK:
    The display is as specified in the normal condition column.


NG
Go to step 3
OK

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

3.CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit

  1. Disconnect the headlight leveling ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E109-1 (IG) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E109-9 (E1) - Body ground
    		Always
    		Below 1 Ω
Text in Illustration
*a
Front view of wire harness connector
(to Headlight Leveling ECU Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)

4.READ VALUE USING GTS (IGNITION POWER SUPPLY)

  1. Using the GTS, read the Data List (Click here).

    AFS
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    +B
    		Ignition power supply voltage value / 0 to 19.75 V
    		11 to 14 V
    		-
    OK:
    The display is as specified in the normal condition column.


NG
Go to step 5
OK

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

5.CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Headlight Leveling Ecu Power Source Circuit

  1. Disconnect the headlight swivel ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    E101-15 (IG) - Body ground
    		Ignition switch ON
    		11 to 14 V
    Ignition switch off
    		Below 1 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E101-22 (E1) - Body ground
    		Always
    		Below 1 Ω
Text in Illustration
*a
Front view of wire harness connector
(to Headlight Swivel ECU Assembly)
Result
Result
Proceed to
OK (for LHD)
A
OK (for RHD)
B
NG
C


B
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here)

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY (Click here)