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 will be canceled.

WIRING DIAGRAM

A01JBW8E01

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. INSPECT DRIVING SUPPORT ECU


    1. A01J93RE27
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Driving Support ECU)

      Disconnect the driving support ECU connector.

    2. Turn the power switch on (IG).

    3. Set the windshield wiper switch assembly to the HI position.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L60-32 (WIP2) - Body ground

      Power switch on (IG)

      Windshield wiper switch assembly Hi position

      		 11 to 14 V

    5. Reconnect the driving support ECU connector.


    NG

    CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT CONTROL ECU - WINDSHIELD WIPER SWITCH) Click here

    OK

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

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


    1. A01JAO2E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Driving Support ECU)
      *2

      Front view of wire harness connector

      (to Windshield Wiper Switch Assembly)
      *3 Light Control Switch LH Side Type
      *4 Light Control Switch RH Side Type

      Disconnect the driving support ECU connector.

    2. Disconnect the windshield wiper switch assembly connector.

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

      Standard Resistance (Check for Open)
      Light Control Switch LH Side Type
      Tester Connection Condition Specified Condition
      L60-32 (WIP2) - L48-4 (+2) Always Below 1 Ω
      Light Control Switch RH Side Type
      Tester Connection Condition Specified Condition
      L60-32 (WIP2) - L48-1 (+2) Always Below 1 Ω
      Standard Resistance (Check for Open)
      Light Control Switch LH Side Type
      Tester Connection Condition Specified Condition
      L60-32 (WIP2) or L48-4 (+2) - Body ground Always 10 kΩ or higher
      Light Control Switch RH Side Type
      Tester Connection Condition Specified Condition
      L60-32 (WIP2) or L48-1 (+2) - Body ground Always 10 kΩ or higher

    4. Reconnect the driving support ECU connector.

    5. Reconnect the windshield wiper switch assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (DRIVING SUPPORT CONTROL ECU - WINDSHIELD WIPER SWITCH)

    OK

    GO TO WIPER AND WASHER SYSTEM Click here