Wiper And Washer System (W/ Rain Sensor) Wiper And Washer Switch Circuit

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Wiper Washer. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (ECU-IG No. 1)

READ VALUE USING INTELLIGENT TESTER (WINDSHIELD WIPER SWITCH)

CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH - BATTERY AND BODY GROUND)

WIPER AND WASHER SYSTEM (w/ Rain Sensor) - Wiper and Washer Switch Circuit


DESCRIPTION

This circuit provides power to operate the windshield wiper switch. The manual operation signals are sent to the windshield wiper ECU.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Wiper Washer.Wiper And Washer System (W/ Rain Sensor).Wiper And Washer System (W/ Rain Sensor) Wiper And Washer Switch Circuit


INSPECTION PROCEDURE

1.INSPECT FUSE (ECU-IG No. 1)

  1. Remove the ECU-IG No. 1 fuse from the cowl side junction block LH.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    ECU-IG No. 1 fuse
    		Always
    		Below 1 Ω


NG
REPLACE FUSE
OK


2.READ VALUE USING INTELLIGENT TESTER (WINDSHIELD WIPER SWITCH)

  1. Check the Data List for proper functioning of the windshield wiper switch.

    Combination Switch
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    F Wiper LO SW
    		Front wiper LO switch / ON or OFF
    		ON: Front wiper switch in LO
    OFF: Front wiper switch not in LO
    		-
    F Wiper HI SW
    		Front wiper HI switch / ON or OFF
    		ON: Front wiper switch in HI
    OFF: Front wiper switch not in HI
    		-
    F Wiper AUTO SW
    		Front wiper AUTO switch / ON or OFF
    		ON: Front wiper switch in AUTO
    OFF: Front wiper switch not in AUTO
    		-
    F Wiper MIST SW
    		Front wiper MIST switch / ON or OFF
    		ON: Front wiper switch in MIST
    OFF: Front wiper switch not in MIST
    		-
    F Washer SW
    		Front washer switch / ON or OFF
    		ON: Front washer switch on
    OFF: Front washer switch off
    		-
    OK:
    The display is as specified in the normal condition.


NG
Go to step 3
OK

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

3.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH - BATTERY AND BODY GROUND)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Wiper Washer.Wiper And Washer System (W/ Rain Sensor).Wiper And Washer System (W/ Rain Sensor) Wiper And Washer Switch Circuit

  1. Disconnect the E16 switch connector.

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

    Standard Voltage:
    for LH Side
    Tester Connection
    		Switch Condition
    		Specified Condition
    E16-2 (+B) - Body ground
    		Engine switch on (IG)
    		11 to 14 V
    E16-2 (+B) - Body ground
    		Engine switch off
    		Below 1 V
    for RH Side
    Tester Connection
    		Switch Condition
    		Specified Condition
    E16-3 (+B) - Body ground
    		Engine switch on (IG)
    		11 to 14 V
    E16-3 (+B) - Body ground
    		Engine switch off
    		Below 1 V

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

    Standard Resistance:
    for LH Side
    Tester Connection
    		Condition
    		Specified Condition
    E16-10 (E) - Body ground
    		Always
    		Below 1 Ω
    for RH Side
    Tester Connection
    		Condition
    		Specified Condition
    E16-5 (E) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE WINDSHIELD WIPER SWITCH (Click here)