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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 173 (Electronically Controlled Brake System (Except Hybrid) - Diagnostic Codes (1 Of 4)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C0500-1F: Left Front Wheel Speed Sensor Circuit Intermittent [06/2018 - ] >> Procedure

DTC C0500-1F: Left Front Wheel Speed Sensor Circuit Intermittent [06/2018 - ]: Procedure

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  1. CHECK FRONT SPEED SENSOR LH (CHECK FOR FOREIGN MATTER) 
    1. Remove the front speed sensor LH.

      Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - ]

    2. Check the front speed sensor LH.

      OK

      The front speed sensor LH tip is free of oil and foreign matter.

      HINT: 

      If foreign matter of 1mm x 1mm or more is adhered to the front speed sensor LH, this DTC may be stored.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  7

    Result: 

    OK 

    See step  2

  2. CHECK FRONT SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER) 
    1. Remove the component with the front speed sensor rotor LH.

      Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    2. Check the front speed sensor rotor LH.

      OK

      The front speed sensor rotor LH is free of oil and foreign matter.

      HINT: 

      If foreign matter of 1mm x 1mm or more is adhered to the front speed sensor rotor LH, this DTC may be stored.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FRONT SPEED SENSOR LH AND FRONT AXLE HUB SUB-ASSEMBLY LH 

    for front speed sensor LH: Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - ]

    for front speed sensor rotor LH (front axle hub sub-assembly LH): Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    Result: 

    NG 

    See step  3

  3. CLEAN FRONT SPEED SENSOR ROTOR LH 
    1. Clean the front speed sensor rotor LH.
      NOTE:

      Do not use parts cleaner when cleaning the front speed sensor rotor LH.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

      Chassis > Brake/EPB > Clear DTCs 

    4. Press the DTC clear button.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Using the Techstream, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete. Enter the following menus: Chassis / Brake/EPB / Utility / Signal Check.

      Refer to TEST MODE PROCEDURE [06/2018 - 08/2020] , or refer to TEST MODE PROCEDURE [08/2020 - ]

      Chassis > Brake/EPB > Utility 

      Tester Display
      Signal Check

      OK

      Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FRONT SPEED SENSOR LH AND FRONT AXLE HUB SUB-ASSEMBLY LH 

    for front speed sensor LH: Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - ]

    for front speed sensor rotor LH (front axle hub sub-assembly LH): Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    Result: 

    OK 

    See step  6

  6. RECONFIRM DTC 
    1. Connect the Techstream to the DLC3.
    2. Start the engine.
    3. Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
    4. Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

      Chassis > Brake/EPB > Trouble Codes 

    5. Check if the same DTC is output.

      Result

      Result Proceed to
      C0500-1F is not output A
      C0500-1F is output B

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE FRONT SPEED SENSOR LH AND FRONT AXLE HUB SUB-ASSEMBLY LH 

    for front speed sensor LH: Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - ]

    for front speed sensor rotor LH (front axle hub sub-assembly LH): Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

  7. CLEAN FRONT SPEED SENSOR LH 
    1. Clean the front speed sensor LH.
      NOTE:

      When cleaning the front speed sensor LH, make sure to clean the installation hole before installation.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  8

  8. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Operate the Techstream to clear the codes. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

      Chassis > Brake/EPB > Clear DTCs 

    4. Press the DTC clear button.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  9

  9. PERFORM DEALER MODE (SIGNAL CHECK) INSPECTION (SPEED SENSOR CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Using the Techstream, perform a Dealer Mode (Signal Check) inspection sensor check and check that speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete. Enter the following menus: Chassis / Brake/EPB / Utility / Signal Check.

      Refer to TEST MODE PROCEDURE [06/2018 - 08/2020] , or refer to TEST MODE PROCEDURE [08/2020 - ]

      Chassis > Brake/EPB > Utility 

      Tester Display
      Signal Check

      OK

      Speed sensor Dealer Mode (Signal Check) inspection items change from incomplete to complete.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  2

    Result: 

    OK 

    See step  10

  10. RECONFIRM DTC 
    1. Connect the Techstream to the DLC3.
    2. Start the engine.
    3. Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
    4. Read the DTCs following the prompts on the Techstream. Enter the following menus: Chassis / Brake/EPB / Trouble Codes.

      Chassis > Brake/EPB > Trouble Codes 

    5. Check if the same DTC is output.

      Result

      Result Proceed to
      C0500-1F is not output A
      C0500-1F is output B

    Result: 

    A 

    END 

    Result: 

    B 

    See step  2

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