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DTC C1A73: Driving Support ECU Receive Data Malfunction [11/2016 - ]: Procedure

  1. CHECK FOR DTCs (PRE-COLLISION SYSTEM) 

    HINT: 

    The driving support ECU communicates with other ECUs via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Body Electrical > Pre-Collision 2 > Trouble Codes 

      Result Proceed to
      DTC U0100, U0125, U0126, U0129, U0235, U023A, U1002 and U1104 are not output A
      DTC U0100, U0125, U0126, U0129, U0235, U023A, U1002 or U1104 are out put B

    Result: 

    GO TO PRE-COLLISION SYSTEM. 

    Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

    Result: 

    See step  2

  2. CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM) 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Chassis > LKA/LDA > Clear DTCs 

    2. Perform the following procedure.

      HINT: 

      If the following procedure is not performed, the previously output DTC cannot be detected.

      1. Turn the ignition switch to ON and wait 7 seconds or more.
    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Chassis > LKA/LDA > Trouble Codes 

      Result Proceed to
      DTC C1A73 is not output A
      DTC C1A73 is output B

    Result: 

    USE SIMULATION METHOD TO CHECK. 

    Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ] 

    Result: 

    See step  3

  3. REPLACE FORWARD RECOGNITION CAMERA 
    1. Replace the forward recognition camera.

      Refer to REMOVAL [11/2016 - ]

    2. Perform forward recognition camera adjustment.

      Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [11/2016 - ]

    Result: 

    NEXT 

    See step  4

  4. CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM) 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Chassis > LKA/LDA > Clear DTCs 

    2. Perform the following procedure.

      HINT: 

      If the following procedure is not performed, the previously output DTC cannot be detected.

      1. Turn the ignition switch to ON and wait 7 seconds or more.
    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [11/2016 - ]

      Chassis > LKA/LDA > Trouble Codes 

      Result Proceed to
      DTC C1A73 is not output A
      DTC C1A73 is output B

    Result: 

    END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) 

    Result: 

    REPLACE DRIVING SUPPORT ECU ASSEMBLY. 

    Refer to  COMPONENTS [12/2013 - ]