TOYOTA PARKING ASSIST-SENSOR SYSTEM Clearance Warning ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the clearance warning ECU.

WIRING DIAGRAM

B006P77E01

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - POWER SOURCE)


    1. B006P25C05
      *a

      Front view of wire harness connector

      (to Clearance Warning ECU Assembly)

      Disconnect the clearance warning ECU assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G59-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      G59-1 (IG) - Body ground Engine switch off Below 1 V
      Result
      Result Proceed to
      OK A
      NG (w/o stop and start system) B
      NG (w/ stop and start system) C

    B

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    C

    GO TO STOP AND START SYSTEM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND)


    1. B006P25C06
      *a

      Front view of wire harness connector

      (to Clearance Warning ECU Assembly)

      Disconnect the clearance warning ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G59-30 (E) - Body ground Always Below 1 Ω
      Result
      Result
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR