PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1AA9

DTC Code DTC Name
C1AA9 Front Camera Module Beam Axis Not Adjusted

DESCRIPTION

Also if Recognition Camera Axis Adjust has not been performed or did not complete normally after the forward recognition camera was replaced with a new one, it stores DTC C1AA9.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AA9

Front Camera Module Beam Axis Not Adjusted

When the pre-crash safety system is operating, the driving support ECU assembly detects that Recognition Camera Axis Adjust has not been completed.

  • Forward recognition camera system

  • Forward recognition camera

  • Driving support ECU assembly

CAUTION / NOTICE / HINT

Note:

  • 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

  • When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly 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 Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust.

    Click here

PROCEDURE

  1. CHECK FOR DTC (FORWARD RECOGNITION CAMERA 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 / Front Recognition Camera / Trouble Codes.

    5. Check for DTCs.

      Click here

      Chassis > Front Recognition Camera > Trouble Codes

      OK

      Forward recognition camera system DTCs are not output.

    Result

    Proceed to

    OK

    NG
    NG

    GO TO FORWARD RECOGNITION CAMERA SYSTEM

    Click here

    OK

  2. CHECK FOR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Pre-Crash 2 > Clear DTCs

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

      Tip:

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

    3. Check for DTCs.

      Click here

      Body Electrical > Pre-Crash 2 > Trouble Codes

      OK

      DTC C1AA9 is not output.

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    NG

    REPLACE DRIVING SUPPORT ECU ASSEMBLY

    for LHD:Click here

    for RHD:Click here