LEXUS PARKING ASSIST-SENSOR SYSTEM(w/o Intelligent Clearance Sonar System), Diagnostic DTC:C1AF3

DTC Code DTC Name
C1AF3 Fr Sensor Initialization Incomplete

DESCRIPTION

When it is judged that the front sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF3.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AF3 Fr Sensor Initialization Incomplete Front sensor not initialized

  • Initialize front sensor

  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

Note


  • If DTC C1AF3 is output after performing repairs, turn the engine switch on (IG) and turn the LEXUS parking assist-sensor system on to clear the DTC.

    Click here

  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

    Click here

PROCEDURE


  1. INITIALIZE FRONT CENTER ULTRASONIC SENSOR AND FRONT CORNER ULTRASONIC SENSOR


    1. Initialize the front center ultrasonic sensor and front corner ultrasonic sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Using the GTS, check for DTCs according to the prompts on the screen.

      Tech Tips

      After turning the engine switch from off to on (IG), wait 10 seconds or more before checking for DTCs.


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      DTC C1AF3 is not output A
      DTC C1AF3 is output B

      Tech Tips

      If DTC C1AF3 is still output after initializing the front center ultrasonic sensor and front corner ultrasonic sensor 3 times, replace the clearance warning ECU assembly.


    A

    END (FRONT SENSORS WERE NOT INITIALIZED)

    B

    REPLACE CLEARANCE WARNING ECU ASSEMBLY for LHD: REPLACE CLEARANCE WARNING ECU ASSEMBLY Click here
    REPLACE CLEARANCE WARNING ECU ASSEMBLY for RHD: REPLACE CLEARANCE WARNING ECU ASSEMBLY Click here