Lighting System Front Fog Light 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 (FRONT FOG LIGHT)

INSPECT FOG LIGHT RELAY (FR FOG)

CHECK HARNESS AND CONNECTOR (FOG LIGHT RELAY [FR FOG] - BATTERY)

CHECK HARNESS AND CONNECTOR (FOG LIGHT RELAY [FR FOG] - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])

LIGHTING SYSTEM - Front Fog Light Circuit


DESCRIPTION

The main body ECU receives a front fog light switch information signal from the light control switch (front fog switch), and illuminates the front fog lights.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Front Fog Light Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT FOG LIGHT)

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

    Main Body
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Front Fog Light Relay
    		Front fog light
    		ON or OFF
    		-
    OK:
    Fog light turns on/turns off.


NG
Go to step 2
OK

REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

2.INSPECT FOG LIGHT RELAY (FR FOG)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Front Fog Light Circuit

  1. Remove the fog light relay from the engine room relay block, junction block.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 - 5
    		Battery voltage not applied to terminals 1 and 2
    		10 kΩ or higher
    Battery voltage applied to terminals 1 and 2
    		Below 1 Ω


NG
REPLACE FOG LIGHT RELAY (FR FOG)
OK


3.CHECK HARNESS AND CONNECTOR (FOG LIGHT RELAY [FR FOG] - BATTERY)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System.Lighting System Front Fog Light Circuit

  1. Remove the fog light 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
    Fog light relay terminal 2 - Body ground
    		Light control switch tail
    		11 to 14 V
    Fog light relay terminal 5 - Body ground
    		Always
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Fog Light Relay [FR FOG])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (FOG LIGHT RELAY [FR FOG] - MAIN BODY ECU [COWL SIDE JUNCTION BLOCK LH])

  1. Remove the fog light relay from the engine room relay block, junction block.

  1. Disconnect the E1 main body ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Fog light relay terminal 1 - E1-4 (FFGO)
    		Always
    		Below 1 Ω
    Fog light relay terminal 1 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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