Dtc C1Aad Vehicle Information Initialization Incomplete

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT)

READ VALUE USING GTS

CHECK DTC OUTPUT (LANE DEPARTURE ALERT SYSTEM)

REPLACE ECM

CHECK DTC OUTPUT (LANE DEPARTURE ALERT SYSTEM)

DTC 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.
DTC Detection Condition
Trouble Area
C1AAD
2 seconds after the engine switch is turned on (IG), the vehicle information from the ECM cannot be stored.
  1. CAN communication system
  2. Forward recognition camera
  3. ECM

INSPECTION PROCEDURE

NOTICE:
  1. 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.
  2. If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera learning (Click here).
1.CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. Check for DTCs (Click here).

Result
Result
Proceed to
DTC U0100 is not output
A
DTC U0100 is output (for LHD)
B
DTC U0100 is output (for RHD)
C


B
GO TO CAN COMMUNICATION SYSTEM (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (Click here)
A


2.READ VALUE USING GTS

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. 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 4WD
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
-
HINT:
  1. 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.
  2. 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 (LANE DEPARTURE ALERT SYSTEM)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. Clear the DTCs (Click here).

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

    HINT:
    If the following procedure is not performed, the previously output DTC cannot be detected.
    1. Turn the engine switch on (IG) and wait 2 seconds or more.

  1. Check for DTCs (Click here).

Result
Result
Proceed to
DTC C1AAD is output
A
DTC C1AAD is not output
B


B
USE SIMULATION METHOD TO CHECK (Click here)
A


4.REPLACE ECM

  1. Replace the ECM.

    1. for 1UR-FE: Click here
    2. for 3UR-FE: Click here
    3. for 1VD-FTV: Click here

NEXT


5.CHECK DTC OUTPUT (LANE DEPARTURE ALERT SYSTEM)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

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

  1. Clear the DTCs (Click here).

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

    HINT:
    If the following procedure is not performed, the previously output DTC cannot be detected.
    1. Turn the engine switch on (IG) and wait 2 seconds or more.

  1. Check for DTCs (Click here).

Result
Result
Proceed to
DTC C1AAD is output
A
DTC C1AAD is not output
B


B
END (ECM WAS DEFECTIVE)
A

REPLACE FORWARD RECOGNITION CAMERA (Click here)