Toyota Venza manuals

Toyota Venza: Front Left Sensor Malfunction (C1AE1)

DESCRIPTION

The No. 1 ultrasonic sensor (front left sensor) is installed on the front bumper. The ECU detects obstacles based on signals received from the No. 1 ultrasonic sensor (front left sensor). If the No. 1 ultrasonic sensor (front left sensor) has an open circuit or other malfunction, it will not function normally.

DTC No.

DTC Detection Condition

Trouble Area

C1AE1

A malfunction of the No. 1 ultrasonic sensor (front left sensor).

  • No. 1 ultrasonic sensor (front left sensor)
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

If DTCs are output after repairs, turn the engine switch on (IG) and turn the clearance sonar main switch on. Then clear the DTCs (See page ).


PROCEDURE

1.

CHECK DTC OUTPUT

(a) Check for DTCs (See page ).


Result

Proceed to

Only DTC C1AE1 is output

A

DTC C1AE1 and C1AEC are output

B

No DTCs are output

C


B

GO TO DTC (C1AEC)


C

USE SIMULATION METHOD TO CHECK


A

2.

REPLACE NO. 1 ULTRASONIC SENSOR (FRONT LEFT SENSOR)

(a) Replace the No. 1 ultrasonic sensor (front left sensor) with a known good one (See page ).


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 (See page ).


(b) Check for DTCs (See page ).


Result

Proceed to

DTC C1AE1 is output

A

No DTCs are output

B


A

REPLACE CLEARANCE WARNING ECU ASSEMBLY


B

END

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