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 power switch is turned on (IG), a malfunction in the power steering system internal circuit is detected for 5 second 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 learning.

    Click here

  • First check the CAN communication system by following How to Proceed with Troubleshooting. After checking that there are no malfunctions in the CAN communication system, proceed with troubleshooting.

    Click here

PROCEDURE

  1. CHECK DTC OUTPUT (POWER STEERING SYSTEM)

    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / EMPS / Trouble Codes.

    5. 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 DTC OUTPUT

    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / LKA/LDA / Trouble Codes.

    5. Clear the DTCs.

      Click here

      Chassis > LKA/LDA > Clear DTCs

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

      Tip:

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

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

    7. 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 hereClick hereClick here

    B

    REPLACE FORWARD RECOGNITION CAMERA

    Click here