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LANE DEPARTURE ALERT SYSTEM Main Switch Circuit

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DTC Code DTC Name
  Main Switch Circuit
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DESCRIPTION

The forward recognition camera receives a lane departure alert main switch signal from the lane departure alert main switch.

Table 1. *a Lane Departure Alert Main Switch *b Forward Recognition Camera
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WIRING DIAGRAM

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PROCEDURE


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    INSPECT LANE DEPARTURE ALERT MAIN SWITCH


    1. Remove the lane departure alert main switch.

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    2. Inspect the lane departure alert main switch.

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      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (LANE DEPARTURE ALERT MAIN SWITCH - FORWARD RECOGNITION CAMERA AND BODY GROUND)


    1. Disconnect the G124 lane departure alert main switch connector.

    2. Disconnect the Q4 forward recognition camera connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G124-6 (ECU) - Q4-3 (LKSW) Always Below 1 Ω
      G124-6 (ECU) or Q4-3 (LKSW) - Body ground Always 10 kΩ or higher
      G124-3 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR