PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:C1AA0

DTC Code DTC Name
C1AA0 Front Camera Module Circuit

DESCRIPTION

The driving support ECU assembly receives information about the area in front of the vehicle from the forward recognition camera. If the driving support ECU assembly detects a malfunction in the forward recognition camera, it stores DTC C1AA0.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AA0 Front Camera Module Circuit While the ignition switch is ON, the forward recognition camera detects an internal malfunction for approximately 0.3 seconds or more.

  • 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 (FRONT RECOGNITION CAMERA SYSTEM)


    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 / Trouble Codes.

    5. Check for DTCs.

      Click here


      Chassis > Front Recognition Camera > Trouble Codes
      OK
      Front recognition camera system DTCs are not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO FRONT 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.

      Tech Tips

      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 C1AA0 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. REPLACE DRIVING SUPPORT ECU ASSEMBLY


    1. Replace the driving support ECU assembly with a new one.

      for LHD: Click here

      for RHD: Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. 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.

      Tech Tips

      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 C1AA0 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE FORWARD RECOGNITION CAMERA Click here