LANE DEPARTURE ALERT SYSTEM Main Switch Circuit

DESCRIPTION

The lane departure warning camera receives a lane-keeping assist main switch signal from the lane-keeping assist main switch.

WIRING DIAGRAM

A01HYN0E05

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT LANE-KEEPING ASSIST MAIN SWITCH


    1. Remove the lane-keeping assist main switch Click here.

    2. Inspect the lane-keeping assist main switch Click here.


    NG

    REPLACE LANE-KEEPING ASSIST MAIN SWITCH Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (LANE-KEEPING ASSIST MAIN SWITCH - LANE DEPARTURE WARNING CAMERA)


    1. Disconnect the S21 lane departure warning camera connector.

    2. Disconnect the I178 lane-keeping assist main switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S21-4 (LKSW) - I178-6 (ECU) Always Below 1 Ω
      I178-3 (GND) - Body ground Always Below 1 Ω
      S21-4 (LKSW) or I178-6 (ECU) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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