LANE DEPARTURE ALERT SYSTEM Lane Departure Alert System Switch Circuit

DTC Code DTC Name
Lane Departure Alert System Switch Circuit

DESCRIPTION

The lane departure alert system and lane departure alert indicator light (green) in the combination meter assembly turn on or off when the lane departure alert switch is pressed.

WIRING DIAGRAM

A352549E08

CAUTION / NOTICE / HINT

Note:

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

  • If the pre-crash safety city sensor has been replaced, or the windshield glass has been replaced or removed/installed, be sure to perform Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

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PROCEDURE

  1. INSPECT STEERING PAD SWITCH ASSEMBLY

    1. Remove the steering pad switch assembly.

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    2. Inspect the steering pad switch assembly.

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    Result

    Proceed to

    OK

    NG
    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY

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    OK

  2. INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

    1. Remove the spiral cable with sensor sub-assembly.

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    2. Inspect the spiral cable with sensor sub-assembly.

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    Result

    Proceed to

    OK

    NG
    NG

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

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    OK

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY PRE-CRASH SAFETY CITY SENSOR)

    1. Disconnect the E16 spiral cable with sensor sub-assembly connector.

    2. Disconnect the M4 pre-crash safety city sensor connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      E16-12 (LDSW) - M4-3 (LDSW)

      Always

      Below 1 Ω

      E16-12 (LDSW) or M4-3 (LDSW) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK LANE DEPARTURE ALERT SYSTEM (LANE DEPARTURE ALERT INDICATOR LIGHT)

    1. Check that the lane departure alert indicator light illuminates on the combination meter assembly when the lane departure alert system is turned on using the lane departure alert main switch.

    Result

    Result

    Proceed to

    The lane departure alert indicator light does not illuminate on the combination meter assembly when the lane departure alert system is turned on using the lane departure alert main switch

    A

    The lane departure alert indicator light illuminates on the combination meter assembly when the lane departure alert system is turned on using the lane departure alert main switch

    B
    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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    B

    USE SIMULATION METHOD TO CHECK

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