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Steering Pad Switch Circuit [12/2019 - 10/2022]: Procedure

  1. READ VALUE USING GTS 
    1. Read the Data List according to the display on the GTS.

      Powertrain > Radar Cruise 1 > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Cancel Switch CANCEL switch status OFF or ON OFF: CANCEL switch not pushed
      ON: CANCEL switch pushed      		 -
      -SET Switch -SET switch status OFF or ON OFF: -SET switch not pushed
      ON: -SET switch pushed      		 -
      +RES Switch +RES switch status OFF or ON OFF: +RES switch not pushed
      ON: +RES switch pushed      		 -
      Cruise Main Switch Operation Condition Cruise control main switch status OFF or ON OFF: Cruise control main switch not pushed
      ON: Cruise control main switch pushed      		 -

      Powertrain > Radar Cruise 1 > Data List 

      Tester Display
      Cancel Switch
      -SET Switch
      +RES Switch
      Cruise Main Switch Operation Condition

      OK

      The value of each Data List item changes according to the operation of the steering pad switch assembly.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2019 - 09/2020]  , or refer to  PROBLEM SYMPTOMS TABLE [09/2020 - 10/2022] 

    Result: 

    NG 

    See step  2

  2. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Remove the steering pad switch assembly.

      Refer to REMOVAL [12/2019 - 10/2022]

    2. Inspect the steering pad switch assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    OK 

    See step  3

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

      Refer to REMOVAL [12/2019 - 10/2022]

    2. Inspect the spiral cable sub-assembly.

      Refer to INSPECTION [12/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND) 
    1. Disconnect the A28 ECM connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H24-13 (CCS) - A28-41 (CCS) Always Below 1 Ω
      H24-2 (ECC) - Body ground Always Below 1 Ω
      H24-13 (CCS) or A28-41 (CCS) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM. Refer to  REMOVAL [12/2019 - 09/2020]  , or refer to  REMOVAL [09/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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