Wiper And Washer System Rear Wiper Does Not Operate


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (GLASS HATCH COURTESY SWITCH)

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (REAR WIPER MOTOR)

INSPECT WASHER RR RELAY

CHECK HARNESS AND CONNECTOR (WASHER RR RELAY - BATTERY)

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - RR WASHER RELAY AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (WASHER RR RELAY - REAR WIPER MOTOR ASSEMBLY)

INSPECT REAR WIPER MOTOR ASSEMBLY

CHECK HARNESS AND CONNECTOR (REAR WIPER MOTOR ASSEMBLY - BODY GROUND)

INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH ASSEMBLY - REAR WIPER MOTOR ASSEMBLY AND BODY GROUND)

WIPER AND WASHER SYSTEM - Rear Wiper does not Operate


DESCRIPTION

When the glass hatch is open, the rear wiper system cuts off the power supply to prevent the rear wiper and rear washer from operating.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.READ VALUE USING INTELLIGENT TESTER (GLASS HATCH COURTESY SWITCH)

  1. Use the Data List to check if the glass hatch opener is functioning properly (LandCruiser RM000002M5Y027X.html).


Main Body
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Glass Hatch Courtesy Switch
Glass hatch courtesy switch signal / ON or OFF
ON: Glass hatch open
OFF: Glass hatch closed
-
OK:
On tester screen, each item changes between ON and OFF according to above chart.


NG
GO TO LIGHTING SYSTEM (LandCruiser RM000002WL802EX.html)
OK


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (REAR WIPER MOTOR)

  1. Using the intelligent tester, perform the Active Test (LandCruiser RM000002M5Y027X.html).

    Main Body
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Rear Wiper Power Supply
    		WASHER RR relay operation
    		ON/OFF
    		-
    OK:
    Rear wiper motor operates.


NG
Go to step 3
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LandCruiser RM000003WBO05FX.html)

3.INSPECT WASHER RR RELAY


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate

  1. Remove the WASHER RR 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 is not applied to terminals 1 and 2
    		10 kΩ or higher
    Battery voltage is applied to terminals 1 and 2
    		Below 1 Ω


NG
REPLACE WASHER RR RELAY
OK


4.CHECK HARNESS AND CONNECTOR (WASHER RR RELAY - BATTERY)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate

  1. Remove the WASHER RR 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
    		Switch Condition
    		Specified Condition
    WASHER RR relay terminal 2 - Body ground
    		Ignition switch ON
    		11 to 14 V
    WASHER RR relay terminal 2 - Body ground
    		Ignition switch off
    		Below 1 V
    WASHER RR relay terminal 5 - Body ground
    		Always
    		11 to 14 V
    WASHER RR relay terminal 5 - Body ground
    		Always
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to WASHER RR Relay)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - RR WASHER RELAY AND BODY GROUND)

  1. Remove the WASHER RR relay from the engine room relay block, junction block.

  1. Remove the main body ECU (LandCruiser RM000003WBO05FX.html).

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G63-20 (RWMR) - WASHER RR relay terminal 1
    		Always
    		Below 1 Ω
    A-11 (GND1) - Body ground
    		Always
    		Below 1 Ω
    G63-20 (RWMR) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.CHECK HARNESS AND CONNECTOR (WASHER RR RELAY - REAR WIPER MOTOR ASSEMBLY)

  1. Disconnect the Y1 rear wiper motor connector.

  1. Remove the WASHER RR 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
    Y1-5 (+B) - WASHER RR relay terminal 3
    		Always
    		Below 1 Ω
    Y1-5 (+B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.INSPECT REAR WIPER MOTOR ASSEMBLY


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate

  1. Remove the rear wiper motor (LandCruiser RM0000024NS0AAX.html).

  1. Check that the rear wiper motor assembly operates when the battery voltage is applied between the terminals.

    OK:
    Tester Connection
    		Specified Condition
    Battery positive (+) → 5 (+B)
    Battery negative (-) → 2 (LS)
    Battery negative (-) → 3 (E)
    		Motor operates at low speed (LO)
    Battery positive (+) → 5 (+B)
    Battery negative (-) → 4 (C1)
    Battery negative (-) → 3 (E)
    		Rear wiper motor operates intermittently


NG
REPLACE REAR WIPER MOTOR ASSEMBLY (LandCruiser RM0000024NS0AAX.html)
OK


8.CHECK HARNESS AND CONNECTOR (REAR WIPER MOTOR ASSEMBLY - BODY GROUND)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate

  1. Disconnect the Y1 rear wiper motor connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Y1-3 (E) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Rear Wiper Motor Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


9.INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY


  1. Remove the windshield wiper switch connector (LandCruiser RM000002ZQ604TX.html).


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Wiper Washer.Wiper And Washer System.Wiper And Washer System Rear Wiper Does Not Operate

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

    Standard Resistance:
    for Windshield Wiper Switch LH Side Type:
    w/ Rain Sensor
    Tester Connection
    		Switch Condition
    		Specified Condition
    16 (C1R) - 9 (EW)
    		OFF
    		10 kΩ or higher
    18 (+1R) - 9 (EW)
    		OFF
    		10 kΩ or higher
    16 (C1R) - 9 (EW)
    		LO
    		Below 1 Ω
    18 (+1R) - 9 (EW)
    		HI
    		Below 1 Ω
    w/o Rain Sensor
    Tester Connection
    		Switch Condition
    		Specified Condition
    B-5 (C1R) - B-2 (EW)
    		OFF
    		10 kΩ or higher
    B-4 (+1R) - B-2 (EW)
    		OFF
    		10 kΩ or higher
    B-5 (C1R) - B-2 (EW)
    		LO
    		Below 1 Ω
    B-4 (+1R) - B-2 (EW)
    		HI
    		Below 1 Ω
    for Windshield Wiper Switch RH Side Type:
    w/ Rain Sensor
    Tester Connection
    		Switch Condition
    		Specified Condition
    12 (C1R) - 1 (EW)
    		OFF
    		10 kΩ or higher
    10 (+1R) - 1 (EW)
    		OFF
    		10 kΩ or higher
    12 (C1R) - 1 (EW)
    		LO
    		Below 1 Ω
    10 (+1R) - 1 (EW)
    		HI
    		Below 1 Ω
    w/o Rain Sensor
    Tester Connection
    		Switch Condition
    		Specified Condition
    B-6 (C1R) - B-2 (EW)
    		OFF
    		10 kΩ or higher
    B-7 (+1R) - B-2 (EW)
    		OFF
    		10 kΩ or higher
    B-6 (C1R) - B-2 (EW)
    		LO
    		Below 1 Ω
    B-7 (+1R) - B-2 (EW)
    		HI
    		Below 1 Ω
    Text in Illustration
    *A
    		for Windshield Wiper Switch LH Side Type
    *B
    		for Windshield Wiper Switch RH Side Type
    *C
    		w/ Rain Sensor
    *D
    		w/o Rain Sensor


NG
REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY (LandCruiser RM000002ZQ604TX.html)
OK


10.CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER SWITCH ASSEMBLY - REAR WIPER MOTOR ASSEMBLY AND BODY GROUND)

  1. for Windshield Wiper Switch LH Side Type:

    1. Disconnect the Y1 rear wiper motor connector.

    2. Disconnect the G120 or G43 windshield wiper switch connector.

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

      Standard Resistance:
      w/ Rain Sensor
      Tester Connection
      		Condition
      		Specified Condition
      Y1-2 (LS) - G120-18 (+1R)
      		Always
      		Below 1 Ω
      Y1-4 (C1) - G120-16 (C1R)
      		Always
      		Below 1 Ω
      G120-9 (EW) - Body ground
      		Always
      		Below 1 Ω
      Y1-2 (LS) - Body ground
      		Always
      		10 kΩ or higher
      Y1-4 (C1) - Body ground
      		Always
      		10 kΩ or higher
      w/o Rain Sensor
      Tester Connection
      		Condition
      		Specified Condition
      Y1-2 (LS) - G43-4 (+1R)
      		Always
      		Below 1 Ω
      Y1-4 (C1) - G43-5 (C1R)
      		Always
      		Below 1 Ω
      G43-2 (EW) - Body ground
      		Always
      		Below 1 Ω
      Y1-2 (LS) - Body ground
      		Always
      		10 kΩ or higher
      Y1-4 (C1) - Body ground
      		Always
      		10 kΩ or higher

  1. for Windshield Wiper Switch RH Side Type:

    1. Disconnect the Y1 rear wiper motor connector.

    2. Disconnect the G120 or G43 windshield wiper switch connector.

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

      Standard Resistance:
      w/ Rain Sensor
      Tester Connection
      		Condition
      		Specified Condition
      Y1-2 (LS) - G120-10 (+1R)
      		Always
      		Below 1 Ω
      Y1-4 (C1) - G120-12 (C1R)
      		Always
      		Below 1 Ω
      G120-1 (EW) - Body ground
      		Always
      		Below 1 Ω
      Y1-2 (LS) - Body ground
      		Always
      		10 kΩ or higher
      Y1-4 (C1) - Body ground
      		Always
      		10 kΩ or higher
      w/o Rain Sensor
      Tester Connection
      		Condition
      		Specified Condition
      Y1-2 (LS) - G43-7 (+1R)
      		Always
      		Below 1 Ω
      Y1-4 (C1) - G43-6 (C1R)
      		Always
      		Below 1 Ω
      G43-2 (EW) - Body ground
      		Always
      		Below 1 Ω
      Y1-2 (LS) - Body ground
      		Always
      		10 kΩ or higher
      Y1-4 (C1) - Body ground
      		Always
      		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LandCruiser RM000003WBO05FX.html)