Lexus ES manuals

Lexus ES: Fr Sensor Initialization Incomplete (C1AF3)

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

NOTICE:

  • If DTC C1AF3 is output after performing repairs, turn the engine switch on (IG) and turn the parking support alert 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

(a) Initialize the front center ultrasonic sensor and front corner ultrasonic sensor.

Click here

NEXT

2.

CHECK FOR DTC

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

HINT:

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

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

Result

Proceed to

DTC C1AF3 is output

A

DTC C1AF3 is not output

B

HINT:

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

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

END (FRONT SENSORS WERE NOT INITIALIZED)

READ NEXT:

 Rr Sensor Initialization Incomplete (C1AF4)

DESCRIPTION When it is judged that the rear sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF4. DTC No. Detection Item DTC Detection Condition Trouble Area

 Vehicle Information Unmatched (C168D)

DESCRIPTION If the vehicle information stored in the main body ECU (multiplex network body ECU) which is sent via CAN communication during the clearance warning ECU assembly self-diagnosis does not ma

 ECU Malfunction (C1611)

DESCRIPTION If the clearance warning ECU assembly detects an internal malfunction during self-diagnosis, DTC C1611 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C

SEE MORE:

 Removal

REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during motor generator control ECU kit removal/installation are shown below. Necessary Procedures After Parts

 Hybrid/EV Battery Stack 1 Delta SOC High (P1A8000,P1AD01B)

DESCRIPTION The battery voltage sensor and the hybrid vehicle control ECU calculate the SOC (state of charge) of the HV battery through the accumulated amperage in the HV battery. The battery voltage sensor sends the condition of the HV battery to the hybrid vehicle control ECU. Then the hybrid vehi

© 2016-2023 Copyright www.lexguide.net