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

DESCRIPTION

This circuit provides power to operate the clearance warning ECU assembly.

WIRING DIAGRAM

A01FU0HE01

INSPECTION PROCEDURE

Note

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

PROCEDURE


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


    1. A01FSJEE06
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Clearance Warning ECU Assembly)

      Disconnect the connector from the clearance warning ECU assembly.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      N10-1 (IG) - Body ground Power switch on (IG) 11 to 14 V
      N10-1 (IG) - Body ground Power switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A01FSJEE07
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Clearance Warning ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N10-30 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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