Toyota Avalon Service & Repair Manual: 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

C1AF4

Rr Sensor Initialization Incomplete

Rear sensor not initialized

  • Initialize rear sensor
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

  • If DTC C1AF4 is output after performing repairs, turn the engine switch on (IG) and turn the intelligent clearance sonar 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 REAR CENTER ULTRASONIC SENSOR AND REAR CORNER ULTRASONIC SENSOR

(a) Initialize the rear center ultrasonic sensor and rear 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 C1AF4 is output

A

DTC C1AF4 is not output

B

HINT:

if DTC C1AF4 is still output after initializing the rear center ultrasonic sensor and rear corner ultrasonic sensor 3 times, replace the clearance warning ECU assembly.

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

END (REAR SENSORS WERE NOT INITIALIZED)

    Fr Sensor Initialization Incomplete (C1AF3)

    RCTB Sensor (C1AF7)

    See More:

    Toyota Avalon Service & Repair Manual > Blind Spot Monitor System(for Gasoline Model): Freeze Frame Data
    FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever DTCs are detected, the blind spot monitor sensor stores the current vehicle (sensor) state as freeze frame data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the blind spot monitor system ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

    © 2021 Copyright www.tavalon.net
    0.0228