LANE DEPARTURE ALERT SYSTEM(w/ Steering Control) Steering Pad Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

Figure 1. for A25A-FKS:

B006ZT9E02

Figure 2. for 2AR-FE:

B006ZT9E03

CAUTION / NOTICE / HINT

Note

The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

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PROCEDURE


  1. INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly.

      Click here

    2. Inspect the steering pad switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE STEERING PAD SWITCH ASSEMBLY Click here

    OK

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY


    1. Remove the spiral cable sub-assembly.

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    2. Inspect the spiral cable sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA)


    1. Disconnect the K22 spiral cable sub-assembly connector.

    2. Disconnect the V6 forward recognition camera connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K22-6 (DIST) - V6-3 (LKSW) Always Below 1 Ω
      K22-6 (DIST) or V6-3 (LKSW) - Body ground Always 10 kΩ or higher

    4. Connect the V6 forward recognition camera connector.

    5. Connect the K22 spiral cable sub-assembly connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)


    1. for A25A-FKS:


      1. Disconnect the K22 spiral cable sub-assembly connector.

      2. Disconnect the A24 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K22-2 (ECC) - A24-28 (ECCS) Always Below 1 Ω
        K22-2 (ECC) or A24-28 (ECCS) - Body ground Always 10 kΩ or higher

      4. Connect the A24 ECM connector.

      5. Connect the K22 spiral cable sub-assembly connector.

    2. for 2AR-FE:


      1. Disconnect the K22 spiral cable sub-assembly connector.

      2. Disconnect the A22 ECM connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K22-2 (ECC) - A22-35 (ECCS) Always Below 1 Ω
        K22-2 (ECC) or A22-35 (ECCS) - Body ground Always 10 kΩ or higher

      4. Connect the A22 ECM connector.

      5. Connect the K22 spiral cable sub-assembly 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