Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000002D8AG
Model Year Start: 2024 Model: GR Corolla Prod Date Range: [08/2023 -           ]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: C1AE396; Ultrasonic Sensor (Front Right Center) Component Internal Failure; 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 -        ]

DTC

C1AE396

Ultrasonic Sensor (Front Right Center) Component Internal Failure

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Priority

C1AE396

Ultrasonic Sensor (Front Right Center) Component Internal Failure

Front center ultrasonic sensor RH failure
  • Front center ultrasonic sensor RH
  • Clearance warning ECU assembly

Clearance Warning

B

CAUTION / NOTICE / HINT

NOTICE:

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

    Click here 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: CALIBRATION

  • If a DTC is detected again after the repair, turn the ignition switch to ON and 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

C1AE396 and C1AE387 are output

B

C1AE396 is output

C
A

USE SIMULATION METHOD TO CHECK

B

GO TO OTHER FLOWCHART (C1AE387)

C

3.

REPLACE FRONT CENTER ULTRASONIC SENSOR RH

(a) Replace the front center ultrasonic sensor RH with a new or normally functioning one.

HINT:

  • Click here 2024 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2023 -        ]; PARK ASSIST / MONITORING: ULTRASONIC SENSOR (for Front Side): REMOVAL
  • To check if the ultrasonic sensor is functioning correctly, replace it with another ultrasonic sensor.
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

C1AE396 is output

B
A

END (FRONT CENTER ULTRASONIC SENSOR RH WAS DEFECTIVE)
B

REPLACE CLEARANCE WARNING ECU ASSEMBLY