LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 255 (Lane Control System (Except HEV) - Diagnostic Codes & Circuit Tests) >> LANE CONTROL SYSTEM (for Gasoline Model) >> Steering Pad Switch Circuit [01/2019 - 03/2019] >> Procedure

Steering Pad Switch Circuit [01/2019 - 03/2019]: Procedure

WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Remove the steering pad switch assembly.

      Refer to REMOVAL [01/2019 - 03/2019]

    2. Inspect the steering pad switch assembly.

      Refer to INSPECTION [01/2019 - 03/2019]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [01/2019 - 03/2019] 

    Result: 

    OK 

    See step  2

  2. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    1. Remove the spiral cable sub-assembly.

      Refer to REMOVAL [01/2019 - 03/2019]

    2. Inspect the spiral cable sub-assembly.

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [01/2019 - 03/2019] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) 
    1. Disconnect the I82 spiral cable sub-assembly connector.
    2. Disconnect the T9 forward recognition camera connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I82-6 (DIST) - T9-3 (LKSW) Always Below 1 Ω
      I82-6 (DIST) or T9-3 (LKSW) - Body ground Always 10 kΩ or higher
    4. Connect the T9 forward recognition camera connector.
    5. Connect the I82 spiral cable sub-assembly connector.

      Result

      Result Proceed to
      OK (for M20A-FKS) A
      OK (for 2ZR-FAE) B
      NG C

    Result: 

    B 

    See step  5

    Result: 

    C 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    A 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) 
    1. Disconnect the I82 spiral cable sub-assembly connector.
    2. Disconnect the A47 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I82-2 (ECC) - A47-28 (ECCS) Always Below 1 Ω
      I82-2 (ECC) or A47-28 (ECCS) - Body ground Always 10 kΩ or higher
    4. Connect the A47 ECM connector.
    5. Connect the I82 spiral cable sub-assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [06/2018 - 09/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  5. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) 
    1. Disconnect the I82 spiral cable sub-assembly connector.
    2. Disconnect the A46 ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I82-2 (ECC) - A46-35 (ECCS) Always Below 1 Ω
      I82-2 (ECC) or A46-35 (ECCS) - Body ground Always 10 kΩ or higher
    4. Connect the A46 ECM connector.
    5. Connect the I82 spiral cable sub-assembly connector.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [06/2018 - 09/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals