Lexus NX: Front Left Center Sensor (C1AE2)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AE2

Front Left Center Sensor

A malfunction of the front center ultrasonic sensor (FLC sensor).

  • Front center ultrasonic sensor (FLC sensor)
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

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

Click here

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Check for DTCs.

Click here

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

Result

Proceed to

No DTCs are output

A

Only DTC C1AE2 is output

B

DTC C1AE2 and C1AEC are output

C

A

USE SIMULATION METHOD TO CHECK

C

GO TO DTC (C1AEC)

B

2.

REPLACE FRONT CENTER ULTRASONIC SENSOR (FLC SENSOR)

(a) Replace the front center ultrasonic sensor (FLC sensor) with a known good one.

Click here

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.

Click here

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

(b) Check for DTCs.

Click here

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

Result

Proceed to

No DTCs are output

A

DTC C1AE2 is output

B

A

END (FRONT CENTER ULTRASONIC SENSOR [FLC SENSOR] WAS DEFECTIVE)

B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

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