LANE DEPARTURE ALERT SYSTEM(w/ Steering Control), Diagnostic DTC:C1A70

DTC Code DTC Name
C1A70 Power Steering Control System

DESCRIPTION

If the forward recognition camera receives an internal malfunction signal from the power steering ECU assembly, DTC C1A70 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1A70 Power Steering Control System 2 seconds after the engine switch is turned on (IG), a malfunction in the power steering system internal circuit is detected for 5 seconds or more.

  • Power steering system

  • Forward recognition camera

CAUTION / NOTICE / HINT

Note


  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

  • If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.

    Click here

  • The lane departure alert system uses the CAN communication system. First, confirm that there are no malfunction in the CAN communication system. Refer to How to Proceed with Troubleshooting.

    Click here

PROCEDURE


  1. CHECK FOR DTCs (POWER STEERING SYSTEM)

    Tech Tips

    Lane departure alert system DTC C1A70 may be stored due to a malfunction in the power steering system. Therefore it is necessary to check for and troubleshoot power steering system DTCs first.


    1. Check for DTCs.

      Click here


      Chassis > EMPS > Trouble Codes
      Result
      Result Proceed to
      Power steering system DTCs are not output A
      Power steering system DTCs are output B

    B

    GO TO POWER STEERING SYSTEM Click here

    A

  2. CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > LKA/LDA > Clear DTCs

    2. Perform the following procedure.

      Tech Tips

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


      1. Turn the engine switch on (IG) and wait 7 seconds or more.

    3. Check for DTCs.

      Click here


      Chassis > LKA/LDA > Trouble Codes
      Result
      Result Proceed to
      DTC C1A70 is not output A
      DTC C1A70 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE FORWARD RECOGNITION CAMERA Click here