Lexus NX: Front Right Center Sensor (C1AE3)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AE3

Front Right Center Sensor

A malfunction of the front center ultrasonic sensor (FRC sensor)

  • Front center ultrasonic sensor (FRC 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 C1AE3 is output

B

DTC C1AE3 and C1AEC are output

C

A

USE SIMULATION METHOD TO CHECK

C

GO TO DTC (C1AEC)

B

2.

REPLACE FRONT CENTER ULTRASONIC SENSOR (FRC SENSOR)

(a) Replace the front center ultrasonic sensor (FRC 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 C1AE3 is output

B

A

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

B

REPLACE CLEARANCE WARNING ECU ASSEMBLY

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SEE MORE:

 On-vehicle Inspection

ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT NOTICE: When the brake pedal is first depressed after replacing the brake pads or pushing back the disc brake piston, DTC C1214 may be output. As there is no malfunction, clear the DTC. While the auxiliary battery is connected, even if the power swi

 Removal

REMOVAL PROCEDURE 1. REMOVE REAR BUMPER COVER Click here 2. REMOVE KICK DOOR CONTROL BRACKET (a) Disconnect the connector and detach the 2 wire harness clamps. NOTICE: Do not touch the terminal of the kick door control sensor connector. (b) Remove the screw. (c) Remov

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