LANE DEPARTURE ALERT SYSTEM(w/ Steering Control), Diagnostic DTC:C1AAD

DTC Code DTC Name
C1AAD Vehicle Information Initialization Incomplete

DESCRIPTION

When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store the vehicle information received from the ECM. If the forward recognition camera cannot store the vehicle information, DTC C1AAD is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AAD

Vehicle Information Initialization Incomplete

2 seconds after the engine switch is turned on (IG), the vehicle information from the ECM cannot be stored.

  • CAN communication system

  • Forward recognition camera

  • ECM

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

PROCEDURE

  1. CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT)

    Tip:

    The forward recognition camera communicates with the ECM via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Check for DTCs.

      Click here

      Chassis > LKA/LDA > Trouble Codes

    Result

    Result

    Proceed to

    DTC U0100 is not output

    A

    DTC U0100 is output

    B
    B

    GO TO CAN COMMUNICATION SYSTEM

    for LHD with Central Gateway ECU:Click here

    for RHD with Central Gateway ECU:Click here

    A

  2. READ VALUE USING GTS

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / Front Recognition Camera / Data List.

    5. Read the Data List according to the display on the GTS.

      Chassis > Front Recognition Camera > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Vehicle Information (2WD/4WD)

      Vehicle information (drivetrain) stored in forward recognition camera

      2WD, 4WD or Unknown

      2WD: for 2WD

      4WD: for AWD

      Unknown: Vehicle information not confirmed

      -

      Vehicle Information (Conv/HV)

      Vehicle information (conventional/hybrid) stored in forward recognition camera

      Conv, HV or Unknown

      Conv: Conventional

      HV: Hybrid vehicle

      Unknown: Vehicle information not confirmed

      -

      Chassis > Front Recognition Camera > Data List

      Tester Display

      Vehicle Information (2WD/4WD)

      Vehicle Information (Conv/HV)
      Tip:

      • If "Unknown" is displayed, the ECM cannot send vehicle information or the forward recognition camera cannot store the vehicle information. Check for DTCs, replace the ECM if necessary and recheck for DTCs. If the DTC is output again, replace the forward recognition camera.

      • If "Unknown" is not displayed, the DTC is stored even though the vehicle information is stored in the forward recognition camera. Replace the forward recognition camera.

    Result

    Result

    Proceed to

    "Unknown" is displayed

    A

    "Unknown" is not displayed

    B
    B

    REPLACE FORWARD RECOGNITION CAMERA

    Click here

    A

  3. CHECK DTC OUTPUT

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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 the ignition switch to ON and wait 2 seconds or more.

    7. Check for DTCs.

      Click here

      Chassis > LKA/LDA > Trouble Codes

    Result

    Result

    Proceed to

    DTC C1AAD is output

    A

    DTC C1AAD is not output

    B
    B

    USE SIMULATION METHOD TO CHECK

    Click hereClick here

    A

  4. REPLACE ECM

    1. Replace the ECM

      for 2AD-FTV:Click here

      for 2AD-FHV:Click here

      for 2AR-FE:Click here

      for 3ZR-FAE:Click here

      for 3ZR-FE:Click here

      for 2WW:Click here

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK DTC OUTPUT

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

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

    7. Check for DTCs.

      Click here

      Chassis > LKA/LDA > Trouble Codes

    Result

    Result

    Proceed to

    DTC C1AAD is output

    A

    DTC C1AAD is not output

    B
    A

    REPLACE FORWARD RECOGNITION CAMERA

    Click here

    B

    END (ECM WAS DEFECTIVE)