WIPER AND WASHER SYSTEM DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / (desired system) / Data List.

    5. Read the Data List according to the display on the intelligent tester.

      Body No. 3 (Main Body ECU LH)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Front Wiper Switch Front wiper switch / ON or OFF

      ON: Front wiper is operated

      OFF: Front wiper is not operated

      		 -
      Speed Mode Speed mode / NOT AVL or AVAIL Customized value can be displayed -
      Auto Wiper Auto wiper / NOT AVL or AVAIL Customized value can be displayed -
      Rewipe Control Rewipe control / OFF or 3S or SPD Customized value can be displayed -
      IG SW IG switch / ON or OFF

      ON: Engine switch on (IG)

      OFF: Engine switch off

      		 -
      Body No. 5 (Front Controller)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Washer Level Switch Washer fluid level switch / ON or OFF

      ON: Washer jar is empty

      OFF: Washer jar is full

      		 -
      Combination Switch (Windshield Wiper Switch Assembly)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Front Washer Switch Front washer switch / ON or OFF

      ON: Front washer switch ON

      OFF: Front washer switch OFF

      		 -
      Front Wiper Mist Switch Front wiper MIST switch / ON or OFF

      ON: Front wiper switch in MIST position

      OFF: Wiper switch not in MIST position

      		 -
      Front Wiper Auto Switch Front wiper AUTO switch / ON or OFF

      ON: Front wiper switch in AUTO position

      OFF: Wiper switch not in AUTO position

      		 -
      Front Wiper Hi Switch Front wiper HI switch / ON or OFF

      ON: Front wiper switch in HI position

      OFF: Wiper switch not in HI position

      		 -
      Front Wiper Lo Switch Front wiper LO switch / ON or OFF

      ON: Front wiper switch in LO position

      OFF: Wiper switch not in LO position

      		 -
      Ignition Switch Signal Engine switch signal / ON or OFF

      ON: Engine switch on (IG)

      OFF: Engine switch off

      		 -
      Wiper Volume Position Front wiper volume (sensitivity) / 0 to 90 degrees

      0 degrees: FR wiper volume "+" position

      27 degrees: Switch is turned one notch towards the "-" side from the FR wiper volume "+" position

      63 degrees: Switch is turned one notch towards the "+" side from the FR wiper volume "-" position

      90 degrees: FR wiper volume "-" position

      If value is NG, replace the windshield wiper switch assembly Click here.
      Rain Sensor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Sen Cond Inf The conditions inside the rain sensor / OK or NG The conditions inside the rain sensor is displayed

      Read the Data List with the engine switch on (IG) and front wiper switch in the AUTO position.

      This item diagnoses the conditions inside the rain sensor.

      If NG is displayed, replace the rain sensor because it has an internal problem.
      Sens React Conde The rain sensor detection conditions / OK or NG The condition of the rain sensor is displayed

      Read the Data List with the engine switch on (IG) and the front wiper switch in the AUTO position.

      This item diagnoses the rain sensor detection conditions.

      If NG is displayed, clean the outside of the windshield where the rain sensor is installed.

      Also confirm the following:

      - The sensor is correctly installed.

      - No air bubbles are trapped between the windshield and the sensor tape.

      - The sensor tape is properly placed between the windshield and sensor.

      - The sensing portion of the sensor (contact surface with the windshield) is clean.

      If no defects are found, replace the rain sensor because it may have an internal problem.
      Sen Hi Temp Inf The detection conditions of the temperature sensor in the rain sensor / OK or NG The detection conditions of the temperature sensor in the rain sensor is displayed

      Read the Data List with the engine switch on (IG) and the front wiper switch in the AUTO position.

      This item diagnoses the detection conditions of the temperature sensor in the rain sensor.

      If NG is displayed, check if the temperature around the rain sensor is more than 90°C (194°F). If the temperature is 90°C (194°F) or less, replace the rain sensor because it may have an internal problem.
      Wip SW Lo Sig Front wiper LO switch / ON or OFF

      ON: Front wiper switch in LO position

      OFF: Wiper switch not in LO position

      		 -
      Wip SW Hi Sig Front wiper HI switch / ON or OFF

      ON: Front wiper switch in HI position

      OFF: Wiper switch not in HI position

      		 -
      Wip SW Auto Sig Front wiper AUTO switch / ON or OFF

      ON: Front wiper switch in AUTO position

      OFF: Wiper switch not in AUTO position

      		 -
      Wash SW Sig Front washer switch / ON or OFF

      ON: Front washer switch ON

      OFF: Front washer switch OFF

      		 -
      Wip SW Mist Sig Front wiper MIST switch / ON or OFF

      ON: Front wiper switch in MIST position

      OFF: Wiper switch not in MIST position

      		 -
      Key SW Sig Engine switch / ON or OFF

      ON: Engine switch on (IG)

      OFF: Without key

      		 -
      KCC Sig Key code signal / ON or OFF

      ON: The key code signal is received

      OFF: The key code signal is not received

      		 -

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / (desired system) / Active Test.

    5. Perform the Active Test according to the display on the intelligent tester.

      Body No. 3 (Main Body ECU LH)
      Tester Display Test Part Control Range Diagnostic Note
      Wiper Motor HI Wiper motor (HI operation) ON / OFF -
      Wiper Motor LO Wiper motor (LO operation) ON / OFF -
      Body No. 5 (Front Controller)
      Tester Display Test Part Control Range Diagnostic Note
      Washer Motor Operation Washer motor ON / OFF -