DYNAMIC RADAR CRUISE CONTROL SYSTEM Wiper Signal Circuit

DESCRIPTION

When the driving support ECU detects that the wipers are operating at high speed, the dynamic radar cruise control system is canceled.

WIRING DIAGRAM

A0096FUE01
A0096FUE02

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CHECK WINDSHIELD WIPER SWITCH ASSEMBLY


    • *1: for RH Side

    • *2: for LH Side


    1. A0095I7E01
      Text in illustration
      *A w/ Rain Sensor
      *B w/o Rain Sensor
      *C for RH Side
      *D for LH Side
      *a

      Component with harness connected

      (Windshield Wiper Switch Assembly

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

      Standard Voltage
      w/ Rain Sensor
      Tester Connection Switch Condition Specified Condition

      1 (+2) - Body ground*1

      9 (+2) - Body ground*2

      		 Ignition switch ON, windshield wiper switch Hi 11 to 14 V
      Ignition switch ON, windshield wiper switch Lo Approximately 9 V
      Ignition switch ON, windshield wiper switch off Below 1 V
      w/o Rain Sensor
      Tester Connection Switch Condition Specified Condition

      1 (+2) - Body ground*1

      4 (+2) - Body ground*2

      		 Ignition switch ON, windshield wiper switch Hi 11 to 14 V
      Ignition switch ON, windshield wiper switch Lo Approximately 9 V
      Ignition switch ON, windshield wiper switch off Below 1 V

    NG

    REPLACE WINDSHIELD WASHER SWITCH ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (WINDSHIELD WASHER SWITCH - DRIVING SUPPORT ECU)


    • *1: w/ Rain Sensor

    • *2: w/o Rain Sensor

    • *3: for RH Side

    • *4: for LH Side


    1. Disconnect the G119 ECU connector.

    2. Disconnect the G120*1 or G42*2 switch connector.

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

      Standard Resistance
      w/ Rain Sensor
      Tester Connection Condition Specified Condition
      G119-32 (WIP2) - G120-1 (+2)*3 Always Below 1 Ω
      G119-32 (WIP2) - G120-9 (+2)*4
      G119-32 (WIP2) - Body ground Always 10 kΩ or higher
      w/o Rain Sensor
      Tester Connection Condition Specified Condition
      G119-32 (WIP2) - G42-1 (+2)*3 Always Below 1 Ω
      G119-32 (WIP2) - G42-9 (+2)*4
      G119-32 (WIP2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here