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. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the intelligent tester on.

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

    7. According to the display on the tester, read the "Data List".

      Body No. 5
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      F Wiper LO Switch Front wiper LO switch / ON or OFF

      ON: Front wiper switch in LO position

      OFF: Front wiper switch not in LO position

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

      ON: Front wiper switch in HI position

      OFF: Front wiper switch not in HI position

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

      ON: Front wiper switch in AUTO position

      OFF: Front wiper switch not in AUTO position

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

      ON: Front wiper switch in MIST position

      OFF: Front wiper switch not in MIST position

      		 -
      F Washer Switch Front washer switch / ON or OFF

      ON: Front washer switch on

      OFF: Front washer switch off

      		 -
      Rain Sensor
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Rain Sensor Cold Rain sensor cold / COLD or OK

      COLD: Rain sensor is low temp

      OK: Rain sensor is normal

      		 -
      Rain Sensor Hot Rain sensor cold / HOT or OK

      HOT: Rain sensor is high temp

      OK: Rain sensor is normal

      		 -
      Body No. 4
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      IG Switch SIG Engine switch signal / ON or OFF

      ON: Engine switch on (IG)

      OFF: Engine switch off

      		 "OFF" is also displayed for this item when the engine switch is on (ACC).
      R Wiper Switch Rear wiper switch / ON or OFF

      ON: Rear wiper switch not in off position

      OFF: Rear wiper switch in off position

      		 -
      R Wiper Int Switch Rear wiper INT switch / ON or OFF

      ON: Rear wiper switch in INT position

      OFF: Rear wiper switch not in INT position

      		 -
      R Wiper Lo Switch Rear wiper LO switch / ON or OFF

      ON: Rear wiper switch in LO position

      OFF: Rear wiper switch not in LO position

      		 -
      R Washer Switch Rear washer switch / ON or OFF

      ON: Rear washer switch on

      OFF: Rear washer switch off

      		 -
      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Stop Light Switch Stop light switch signal / ON or OFF

      ON: Stop light switch on

      OFF: Stop light switch off

      		 -

  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.

    Note

    When a Body No. 5 (windshield wiper ECU) and Body No. 4 (No. 2 main body ECU) related front wiper switch is on, Active Test items related to the front wiper switch are prohibited (double operation prohibition). Check that the front wiper switches are off before performing Active Tests.


    1. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the intelligent tester on.

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

    7. According to the display on the tester. perform the "Active Test".

      Body No. 5
      Tester Display Test Part Control Range Diagnostic Note
      Wiper Mot (HI) Wiper motor HI operation ON / OFF -
      Wiper Mot (LO) Wiper motor LO operation ON / OFF -
      Body No. 4
      Tester Display Test Part Control Range Diagnostic Note
      R Wiper (LO) Wiper motor LO operation ON / OFF -
      Front Washer Nozzle Heater Washer nozzle heater operation ON / OFF -
      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Head Light Cleaner Headlight low beam signal ON / OFF -