Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001B5HQ
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model): C1AE6; Rear Left Sensor Malfunction; 2019 - 2022 MY Avalon [04/2018 -        ]

DTC

C1AE6

Rear Left Sensor Malfunction

DESCRIPTION

The rear corner ultrasonic sensor LH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear corner ultrasonic sensor LH. If the rear corner ultrasonic sensor LH has an open circuit or other malfunction, it will not function normally.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AE6

Rear Left Sensor Malfunction

A malfunction of the rear corner ultrasonic sensor LH.
  • Rear corner ultrasonic sensor LH
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

If DTCs are output after repairs, turn the engine switch on (IG) and the intuitive parking assist system on. Then clear the DTCs.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Check for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

Result

Proceed to

Only DTC C1AE6 is output

A

DTC C1AE6 and C1AED are output

B

No DTCs are output

C
B

GO TO DTC (C1AED)

C

USE SIMULATION METHOD TO CHECK

A

2.

REPLACE REAR CORNER ULTRASONIC SENSOR LH

(a) Replace the rear corner ultrasonic sensor LH with a known good one.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: ULTRASONIC SENSOR(for Rear): REMOVAL

HINT:

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

3.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(b) Check for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

Result

Proceed to

DTC C1AE6 is output

A

No DTCs are output

B
A

REPLACE CLEARANCE WARNING ECU ASSEMBLY 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL 2022 MY Avalon Avalon HV [08/2021 -        ]; PARK ASSIST / MONITORING: CLEARANCE WARNING ECU: REMOVAL

B

END (REAR LEFT SENSOR WAS DEFECTIVE)