LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2012 >> Avalon Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System And Washer System (Diagnostics & Circuit Tests) >> Wiper And Washer System >> Circuit Tests >> Front Wiper Motor Circuit >> Procedure

Front Wiper Motor Circuit: Procedure

  1. PERFORM ACTIVE TEST USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Body No. 5 / Active Test.
    5. Check the wiper motor operation by performing the Active Test.
      BODY NO. 5 (FRONT CONTROLLER):

      Tester Display Test Part Control Range Diagnostic Note
      Wiper Motor HI Wiper motor HI operation Wiper motor HI operation ON / OFF -
      Wiper Motor LO Wiper motor LO operation Wiper motor LO operation ON / OFF -

      OK

      Wiper motor operates in HI or LO mode depending on command.

    NG → See step   2 

    OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  2. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY 
    1. Remove the windshield wiper motor assembly. Refer to REMOVAL .
      Fig 1: Identifying Windshield Wiper Motor Connector Terminals
      GTY169577Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. LO operation check.
      1. Connect the positive battery (+) lead to terminal 1 (+1) of the connector, and the negative battery (-) lead to terminal 5 (E).

        OK

        Motor is operated at low speed.

    3. HI operation check.
      1. Connect the positive battery (+) lead to terminal 4 (+2) of the connector, and the negative battery (-) lead to terminal 5 (E).

        OK

        Motor is operated at high speed.

    4. Automatic stop operation check.
      1. Connect the positive battery (+) lead to terminal 1 (+1) of the connector, and the negative battery (-) lead to terminal 5 (E). With the motor operating at low speed, disconnect terminal 1 (+1) to stop wiper motor operation where in any position other than the automatic stop position.
      2. Using SST, connect terminals 3 (+S) and 1 (+1), and the positive battery (+) lead to terminal 2 (B) to restart motor operation at low speed.
      3. Check that the motor stops at the automatic stop position.
        Fig 2: Checking Windshield Wiper Motor Stops Position
        GTY206618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK

        Motor stops as shown in the illustration.

    NG → REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - FRONT CONTROLLER) 
    1. Disconnect the A16 wiper motor connector.
      Fig 3: Identifying Windshield Wiper Motor Connector Terminals
      GTY177823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 1D and 1E connectors from the front controller.
      Fig 4: Identifying Front Controller Connector Terminals
      GTY177940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Resistance

      Tester Connection Condition Specified Condition
      A16-1 - 1D-2 Always Below 1 Ω
      A16-2 - 1E-1 Always Below 1 Ω
      A16-3 - 1E-3 Always Below 1 Ω
      A16-4 - 1D-1 Always Below 1 Ω
      A16-1 - Body ground Always 10 kΩ or higher
      A16-2 - Body ground Always 10 kΩ or higher
      A16-3 - Body ground Always 10 kΩ or higher
      A16-4 - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (BATTERY - FRONT CONTROLLER) 
    1. Measure the voltage according to the value(s) in the table below.
      Fig 5: Identifying Front Controller Connector Terminals
      GTY206608Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Voltage

      Tester Connection Condition Specified Condition
      1F-1 - Body ground Always 10 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (WINDSHIELD WIPER MOTOR ASSEMBLY - BODY GROUND) 
    1. Disconnect the A16 wiper motor connector.
      Fig 6: Identifying Windshield Wiper Motor Connector Terminals
      GTY188993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Resistance

      Tester Connection Condition Specified Condition
      A16-5 - Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (FRONT CONTROLLER - BODY GROUND) 
    1. Disconnect the 1H connector from the front controller.
      Fig 7: Identifying Front Controller Connector Terminals
      GTY206609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below:

      Resistance

      Tester Connection Condition Specified Condition
      1H-8 - Body ground Always Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (IGNITION SWITCH CIRCUIT) 
    1. Disconnect the 1G connector from the front controller.
      Fig 8: Identifying Front Controller Connector Terminals
      GTY206610Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below:

      Voltage

      Tester Connection Condition Specified Condition
      1G-2 - Body ground Ignition switch off Below 1 V
      1G-2 - Body ground Ignition switch on (IG) 10 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

scientia non olet · About LEMON Manuals