LIN COMMUNICATION SYSTEM Rain Sensor LIN Communication Malfunction

DESCRIPTION

The LIN communication of the components related to the rain sensor occurs between the rain sensor and windshield wiper relay assembly.

WIRING DIAGRAM

A01QR4CE01

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the ignition switch off to troubleshoot:

    Connect the GTS to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the GTS and vehicle begins.

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (RAIN SENSOR - WINDSHIELD WIPER RELAY ASSEMBLY)


    1. Disconnect the G85 windshield wiper relay assembly connector.

    2. Disconnect the Q5*1 or Q10*2 rain sensor connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      Q5-1 (MPX) - G85-14 (MPX1) Always Below 1 Ω
      Q5-1 (MPX) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      Q10-1 (MPX) - G85-14 (MPX1) Always Below 1 Ω
      Q10-1 (MPX) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (RAIN SENSOR - BATTERY AND BODY GROUND)

    A01QUFCC02
    *A for LHD
    *B for RHD
    *a

    Front view wire harness connector

    (to Rain Sensor)

    1. Disconnect the rain sensor connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      Q5-4 (SIG) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      Q10-4 (SIG) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for LHD
      Tester Connection Condition Specified Condition
      Q5-2 (ES) - Body ground Always 11 to 14V
      for RHD
      Tester Connection Condition Specified Condition
      Q10-2 (ES) - Body ground Always 11 to 14V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK RAIN SENSOR


    1. Temporarily replace the rain sensor with a new or normally functioning one.

    2. Check the rain sensor function.

      Click here

      Result
      Proceed to
      Rain sensor function is normal
      Rain sensor function is not normal

    Rain sensor function is normal

    END (RAIN SENSOR IS DEFECTIVE)

    Rain sensor function is not normal

    REPLACE WINDSHIELD WIPER RELAY ASSEMBLY