Toyota Venza Quiz
Park Assist / Monitoring

Front Left Sensor Malfunction (C1AE1)

In this manual: Park Assist / Monitoring
Introduction — 15Maintenance — 8Audio / Video — 102Garage Door Opener — 8Navigation / Multi Info Display — 81Park Assist / Monitoring — 50Brake (front) — 7Brake (rear) — 7Brake Control / Dynamic Control Systems — 79Brake System (other) — 28Parking Brake — 22Axle And Differential — 44Drive Shaft / Propeller Shaft — 24Mf1a Transfer / 4wd / Awd — 46U660e Automatic Transmission / Transaxle — 1241ar-fe Cooling — 311ar-fe Emission Control — 101ar-fe Engine Control — 1331ar-fe Engine Mechanical — 441ar-fe Fuel — 311ar-fe Intake / Exhaust — 211ar-fe Lubrication — 111ar-fe Starting — 16Cruise Control — 241ar-fe Battery / Charging — 162gr-fe Battery / Charging — 17Networking — 67Power Distribution — 8Power Assist Systems — 34Steering Column — 37Steering Gear / Linkage — 29Alignment / Handling Diagnosis — 4Front Suspension — 39Rear Suspension — 35Tire / Wheel — 4Tire Pressure Monitoring — 35Door / Hatch — 83Exterior Panels / Trim — 56Horn — 4Lighting (ext) — 89Mirror (ext) — 36Sliding Roof / Convertible — 26Window / Glass — 87Wiper / Washer — 30Door Lock — 85Heating / Air Conditioning — 82Interior Panels / Trim — 20Lighting (int) — 37Meter / Gauge / Display — 41Mirror (int) — 9Power Outlets (int) — 10Seat — 84Seat Belt — 43Supplemental Restraint Systems — 131Theft Deterrent / Keyless Entry — 155
~1min read
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

  1. 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

  1. 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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