Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Rear Left Center Sensor Malfunction (C1AE7)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AE7

Rear Left Center Sensor Malfunction

A malfunction of the rear center ultrasonic sensor LH.

  • Rear center ultrasonic sensor LH
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

If DTCs are output after repairs, turn the engine 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

Only DTC C1AE7 is output

A

DTC C1AE7 and C1AED are output

B

No DTCs are output

C

B

GO TO DTC (C1AED)

C

USE SIMULATION METHOD TO CHECK

A

2.

REPLACE REAR CENTER ULTRASONIC SENSOR LH

(a) Replace the rear center ultrasonic sensor LH 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

DTC C1AE7 is output

A

No DTCs are output

B

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

END (REAR LEFT CENTER SENSOR WAS DEFECTIVE)

    Rear Left Sensor Malfunction (C1AE6)
    DESCRIPTION The rear corner ultrasonic sensor LH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear corner ultrasonic sensor ...

    Rear Right Center Sensor Malfunction (C1AE8)
    DESCRIPTION The rear center ultrasonic sensor RH is installed to the rear bumper. The clearance warning ECU assembly detects obstacles based on signals received from the rear center ultrasonic sensor ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Sfi System: Freeze Frame Data
    FREEZE FRAME DATA DESCRIPTION The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, whethe ...

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Automatic Transaxle System: Pressure Control Solenoid "D" Actuator Stuck Off (P27137F)
    DESCRIPTION Based on signals from the accelerator position sensor and transmission revolution sensors (NT, NC3 and NC), the ECM controls the shift solenoid valve SLT using a predetermined current. As a result, the line pressure is adjusted to a pressure that is appropriate for the throttle angle and ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    Chevrolet Trax (2013-2022) Owner's Manual

    © 2023 Copyright www.lexusrx.net
    0.019