Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Ultrasonic Sensor (Front Left Center) Component Internal Failure (C1AE296)

Toyota Corolla Cross (2022-2026) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Intuitive Parking Assist System / Ultrasonic Sensor (Front Left Center) Component Internal Failure (C1AE296)

DESCRIPTION

The front center ultrasonic sensor (FLC sensor) is installed on the front bumper. The clearance warning ECU assembly detects obstacles based on signals it receives from the front center ultrasonic sensor (FLC sensor). If an open circuit or other malfunction occurs in the front center ultrasonic sensor (FLC sensor), the front center ultrasonic sensor (FLC sensor) does not operate correctly.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AE296

Ultrasonic Sensor (Front Left Center) Component Internal Failure

Front center ultrasonic sensor (FLC sensor) failure
  • Front center ultrasonic sensor (FLC sensor)
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

  • Perform registration after replacing or removing and installing the ultrasonic sensor or clearance warning ECU assembly.

    Click here

  • If a DTC is detected again after the repair, turn the ignition switch to ON and turn the intuitive parking assist system on, and then clear the DTC.

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result

Proceed to

DTCs are not output

A

C1AE296 and C1AE287 are output

B

C1AE296 is output

C

None of the above conditions are met

D
A

USE SIMULATION METHOD TO CHECK

B

GO TO DTC (C1AE287)

D

GO TO DTC CHART

C

3.

REPLACE FRONT CENTER ULTRASONIC SENSOR (FLC SENSOR)

(a) Replace the front center ultrasonic sensor (FLC sensor) with a known good one.

HINT:

  • Click here
  • All of the sensors are interchangeable. To confirm whether a sensor is functioning normally, switch it with a known good sensor from the other end of the vehicle.
NEXT

4.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs
NEXT

5.

CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result

Proceed to

DTCs are not output

A

C1AE296 is output

B

None of the above conditions are met

C
A

END (FRONT CENTER ULTRASONIC SENSOR [FLC SENSOR] WAS DEFECTIVE)
B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

C

GO TO DTC CHART

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     Registration

    REGISTRATION CAUTION / NOTICE / HINT HINT: Register a new recognition code when replacing a door control transmitter assembly or the door control receiver. Add mode is used to retain the codes that have already been registered while registering a new recognition code. This mode is used wh

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the GTS to read the Data List allows the values or states of swit

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