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

A01DNK4E06
A01DNK4E07

INSPECTION PROCEDURE

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

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 Click here.

      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 Click here

    OK

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


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

      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

    INSPECT WASHER RR RELAY Click here

    OK

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

  3. INSPECT WASHER RR RELAY


    1. A01DUFLE01

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

    2. 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)


    1. A01DQBCE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to WASHER RR Relay)

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

    2. 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

    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.

    2. Remove the main body ECU Click here.

    3. 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.

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

    3. 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


    1. A01DRBQE06

      Remove the rear wiper motor Click here.

    2. 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 Click here

    OK

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


    1. A01DN5ZE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Rear Wiper Motor Assembly)

      Disconnect the Y1 rear wiper motor connector.

    2. 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY


    1. Remove the windshield wiper switch connector Click here.

      A01DOT5E01

    2. 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 Click here

    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

    2. 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) Click here