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DTC C1A41: Brake Request Value Mismatch between ENG / EHV and Driving Support ECU [10/2014 - 09/2017]: Procedure

  1. CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
    5. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Chassis > ABS/VSC/TRAC > Trouble Codes 

      Result

      Result Proceed to
      Vehicle stability control system DTCs are not output A
      Vehicle stability control system DTCs are output B

    Result: 

    GO TO VEHICLE STABILITY CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 05/2019] 

    Result: 

    See step  2

  2. CHECK FOR DTCs (SFI SYSTEM) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 05/2019]

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      SFI system DTCs are not output A
      SFI system DTCs are output B

    Result: 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - ] 

    Result: 

    See step  3

  3. REPLACE ECM 
    1. Replace the ECM with a new one.

      Refer to REMOVAL [10/2014 - 05/2019]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CHECK FOR DTCs 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Pre-Collision 2 > Clear DTCs 

    2. Make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Pre-Collision 2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A41 is output A
      DTC C1A41 is not output B

    Result: 

    END (ECM WAS DEFECTIVE) 

    Result: 

    See step  5

  5. REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) 
    1. Replace the brake actuator assembly (skid control ECU) with a new one.

      Refer to REMOVAL [10/2014 - 05/2019]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  6

  6. CHECK FOR DTCs 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Pre-Collision 2 > Clear DTCs 

    2. Make sure that the DTC detection conditions are met.

      HINT: 

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Pre-Collision 2 > Trouble Codes 

      Result

      Result Proceed to
      DTC C1A41 is not output A
      DTC C1A41 is output B

    Result: 

    END (BRAKE ACTUATOR ASSEMBLY [SKID CONTROL ECU] WAS DEFECTIVE) 

    Result: 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]