Toyota Camry (XV70): Ultrasonic Sensor (Front Left Corner) Component Internal Failure (C1AE196)

DESCRIPTION

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1AE196	Ultrasonic Sensor (Front Left Corner) Component Internal Failure	Front corner ultrasonic sensor LH failure	Front corner ultrasonic sensor LH Clearance warning ECU assembly

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.

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PROCEDURE

1.	CHECK FOR DTC

(a) According to the display on the GTS, check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

(b) According to the display on the GTS, clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result	Proceed to
No DTC is output	A
"C1AE196" is output	B
"C1AE196" and "C1AE187" are output	C

A

USE SIMULATION METHOD TO CHECK

C

GO TO OTHER FLOWCHART (C1AE187)

B

2.	REPLACE FRONT CORNER ULTRASONIC SENSOR LH

(a) Replace the front corner ultrasonic sensor LH with a new or normally functioning one.

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HINT:

To check if the ultrasonic sensor is functioning correctly, replace it with another ultrasonic sensor.

NEXT

3.	CHECK FOR DTC

(a) According to the display on the GTS, check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

(b) According to the display on the GTS, clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result	Proceed to
No DTC is output	A
"C1AE196" is output	B

A

END (FRONT CORNER ULTRASONIC SENSOR LH WAS DEFECTIVE)

B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

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