HUMIDITY SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT RAIN SENSOR


    1. B004SK9C51
      *a

      Front view of wire harness connector

      (to Rain Sensor)

      Disconnect the rain sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N29-2 (ES) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      N29-4 (SIG) - N29-2 (ES) Power switch on (IG) 11 to 14 V
    4. B004XMCC29
      *a

      Component with harness connected

      (Rain Sensor)

      Reconnect the rain sensor connector.

    5. Connect an oscilloscope to the rain sensor connector.

    6. Check for pulses.

      OK
      Tester Connection Condition Specified Condition
      N29-3 (MPX) - N29-2 (ES)

      Power switch on (IG)

      Front wiper switch Auto

      		 Pulse generation

      Tech Tips

      If the result is not as specified, replace the rain sensor.