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.

WIRING DIAGRAM

A004PZDE05

CAUTION / NOTICE / HINT

Note


  • When using the intelligent tester with the ignition switch off to troubleshoot:

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

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

PROCEDURE


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

    A004RM2E02
    Text in Illustration
    *1

    Front view of wire harness connector

    (to Windshield Wiper Relay)
    *2

    Front view of wire harness connector

    (to Rain Sensor)

    1. Disconnect the D60 relay connector.

    2. Disconnect the K5 sensor connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K5-1 (MPX) - D60-14 (SPD) Always Below 1 Ω
      K5-3 (SIG) - D60-13 (SIG) Always Below 1 Ω
      K5-2 (ES) - D60-7 (ES) Always Below 1 Ω
      K5-1 (MPX) - Body ground Always 10 kΩ or higher
      K5-3 (SIG) - Body ground Always 10 kΩ or higher
      K5-2 (ES) - Body ground Always 10 kΩ or higher
      D60-12 (E) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D60-2 (IG) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT WINDSHIELD WIPER RELAY ASSEMBLY

    A004TIRE02
    Text in Illustration
    *1

    Component with harness connected

    (Windshield Wiper Relay)

    1. Reconnect the D60 relay connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D60-13 (SIG) - D60-7 (ES) Ignition switch ON 11 to 14 V
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE WINDSHIELD WIPER RELAY Click here

    C

    REPLACE WINDSHIELD WIPER RELAY Click here

    A

  3. REPLACE RAIN SENSOR


    1. Temporarily replace the rain sensor with a new one Click here.

    2. Check that the rain sensor function is normal.

      OK
      Rain sensor function is normal.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (RAIN SENSOR IS DEFECTIVE)

    B

    REPLACE WINDSHIELD WIPER RELAY Click here

    C

    REPLACE WINDSHIELD WIPER RELAY Click here