Lexus ES: 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 power 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 REAR CENTER ULTRASONIC SENSOR AND REAR CORNER ULTRASONIC SENSOR |
(a) Initialize the rear center ultrasonic sensor and rear corner ultrasonic sensor.
-
w/o Parking Support Brake System: Click here
-
w/ Parking Support Brake System: Click here
NEXT | | |
(a) Using the Techstream, check for DTCs according to the prompts on the screen.
HINT:
After turning the power 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.
B | | END (REAR SENSORS WERE NOT INITIALIZED) |
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