Toyota Corolla Cross: Ultrasonic Sensor (Front Right Center) Component Internal Failure (C1AE396)

DESCRIPTION

The front center ultrasonic sensor (FRC 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 (FRC sensor). If an open circuit or other malfunction occurs in the front center ultrasonic sensor (FRC sensor), the front center ultrasonic sensor (FRC sensor) does not operate correctly.

CAUTION / NOTICE / HINT

NOTICE:

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

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• 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

(a) Clear the DTCs.

NEXT

(a) Check for DTCs.

A

USE SIMULATION METHOD TO CHECK

B

GO TO DTC (C1AE387)

D

GO TO DTC CHART

C

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

HINT:

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• 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

(a) Clear the DTCs.

NEXT

(a) Check for DTCs.

A

END (FRONT CENTER ULTRASONIC SENSOR [FRC SENSOR] WAS DEFECTIVE)

B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

C

GO TO DTC CHART

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