LANE DEPARTURE ALERT SYSTEM Power Source Circuit

DESCRIPTION

This circuit provides power to operate the forward recognition camera.

WIRING DIAGRAM

A01SG4IE07

CAUTION / NOTICE / HINT

Note

w/o Stop and Start System:

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE VOLTAGE)


    1. B0028O0C08
      *a

      Front view of wire harness connector

      (to Forward Recognition Camera)

      Disconnect the forward recognition camera connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Q4-7 (IGB) - Body ground Ignition switch ON

      11 to 14 V*1

      10.5 to 16 V*2

      • *1: w/o Stop and Start System

      • *2: w/ Stop and Start System

    3. Connect the forward recognition camera connector.

      Result
      Proceed to
      OK
      NG (w/o Stop and Start System)
      NG (w/ Stop and Start System)

    NG (w/o Stop and Start System)

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    NG (w/ Stop and Start System)

    INSPECT STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT) Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND)


    1. A01SHI4C09
      *a

      Front view of wire harness connector

      (to Forward Recognition Camera)

      Disconnect the forward recognition camera connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Q4-10 (GND) - Body ground Always Below 1 Ω

    3. Connect the forward recognition camera connector

      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