LIN COMMUNICATION SYSTEM Rain Sensor LIN Communication Malfunction

DTC Code DTC Name
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

B339715E01

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.

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

      Standard Resistance

      Table 1. 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
      Table 2. 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

    • *1: for LHD

    • *2: for RHD

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    B339716C02

    *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

      Table 3. for LHD

      Tester Connection

      Condition

      Specified Condition

      Q5-4 (SIG) - Body ground

      Always

      Below 1 Ω
      Table 4. 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

      Table 5. for LHD

      Tester Connection

      Condition

      Specified Condition

      Q5-2 (ES) - Body ground

      Always

      11 to 14V
      Table 6. 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 hereClick hereClick 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