LANE DEPARTURE ALERT SYSTEM Lane Departure Alert System Circuit

DTC Code DTC Name
Lane Departure Alert System Circuit

DESCRIPTION

When the ignition switch is ON, power is supplied to the pre-collision city sensor.

WIRING DIAGRAM

E395398E01

CAUTION / NOTICE / HINT

Note:

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

  • When replacing the pre-collision city sensor, replace it with a new one and be sure to initialize the settings. If a pre-collision city sensor which was installed to another vehicle is used, the information stored in the pre-collision city sensor will not match the information from the vehicle and, as a result, a DTC may be stored.

  • If the pre-collision city sensor has been replaced, or the windshield glass has been replaced or removed/installed, be sure to perform Pre-collision City Sensor Optical Axis Learning.

    Tip:

    Pre-collision City Sensor Optical Axis Learning can be performed by using either One Time Recognition or Sequential Recognition.

    One Time Recognition:Click here

    Sequential Recognition:Click here

PROCEDURE

  1. INSPECT BATTERY VOLTAGE

    1. Measure the battery voltage.

      Standard Voltage

      11 to 14 V

      If the voltage is below 11 V, replace or recharge the battery before proceeding to the next step.

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK PRE-COLLISION CITY SENSOR

    1. Check pre-collision city sensor.

      Note:

      DTCs may be output when connectors are disconnected during inspection. Therefore, make sure to clear the DTCs using the GTS once the inspection has been completed.

      1. E255432C37

        *a

        Front view of wire harness connector

        (to Pre-collision City Sensor)

        Disconnect the pre-collision city sensor connector.

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

        Standard Voltage

        Tester Connection

        Condition

        Specified Condition

        M4-7 (IG1) - Body ground

        Ignition switch ON

        11 to 14 V

        M4-7 (IG1) - Body ground

        Ignition switch off

        Below 1 V

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

        Standard Resistance

        Tester Connection

        Condition

        Specified Condition

        M4-10 (GND) - Body ground

        Always

        Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK CAN COMMUNICATION SYSTEM

    1. Use the GTS to check if the CAN communication system is functioning normally.

      Click here

    Result

    Result

    Proceed to

    CAN communication system DTCs are not output

    A

    CAN communication system DTCs are output

    B
    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    B

    GO TO CAN COMMUNICATION SYSTEM

    Click here