DYNAMIC RADAR CRUISE CONTROL SYSTEM Wiper Signal Circuit

DESCRIPTION

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

WIRING DIAGRAM

B0059E1E01

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK WIPER AND WASHER SYSTEM


    1. Check the wiper and washer system operates normally.

      OK
      Wiper and washer system operates normally
      Result
      Proceed to
      OK
      NG

    NG

    GO TO WIPER AND WASHER SYSTEM Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT ECU ASSEMBLY - BATTERY AND BODY GROUND)


    1. B0057APC52
      *a

      Rear view of wire harness connector

      (to Driving Support ECU Assembly)

      Disconnect the driving support ECU assembly connector.

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

      Standard Voltage
      w/o Stop and Start System
      Tester Connection Switch Condition Specified Condition
      I19-30 (B) - Body ground Engine switch on (IG) 11 to 14 V
      I19-30 (B) - Body ground Engine switch off Below 1 V
      I19-32 (WIP2) - Body ground Engine switch on (IG), windshield wiper switch Hi 11 to 14 V
      w/ Stop and Start System
      Tester Connection Switch Condition Specified Condition
      I19-30 (B) - Body ground Engine switch on (IG) 10.5 to 16 V
      I19-30 (B) - Body ground Engine switch off Below 1 V
      I19-32 (WIP2) - Body ground Engine switch on (IG), windshield wiper switch Hi 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      I19-25 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR