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

DESCRIPTION

This circuit provides power to operate the clearance warning ECU.

WIRING DIAGRAM

A015ZL2E01

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT FUSE (LH-IG)


    1. Remove the LH-IG fuse from the cowl side junction block LH.

    2. Measure the resistance of the LH-IG fuse.

      Standard Resistance
      Tester Item Condition Specified Condition
      LH-IG fuse Always Below 1 Ω

    NG

    REPLACE FUSE (LH-IG)

    OK

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


    1. A0163KRE08

      Disconnect the clearance warning ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q37-8 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A0163KRE09

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q37-27 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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