Dtc C1Ae1 Front Left Sensor Malfunction

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Park Assist Monitoring. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

REPLACE NO. 1 ULTRASONIC SENSOR (FRONT CORNER SENSOR LH)

CHECK FOR DTC

DTC C1AE1 Front Left Sensor Malfunction


DESCRIPTION

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

DTC Code
DTC Detection Condition
Trouble Area
C1AE1
A malfunction of the No. 1 ultrasonic sensor (front corner sensor LH).
  1. No. 1 ultrasonic sensor (front corner sensor LH)
  2. Clearance warning ECU assembly

INSPECTION PROCEDURE

NOTICE:
If DTCs are output after repairs, turn the engine switch on (IG) and turn the TOYOTA parking assist-sensor system on. Then clear the DTCs (Click here).
1.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    Result
    Result
    		Proceed to
    No DTC is output.
    		A
    Only DTC C1AE1 is output.
    		B
    DTC C1AE1 and C1AEC are output.
    		C



B
Go to step 2

C
GO TO DTC (C1AEC) (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)

2.REPLACE NO. 1 ULTRASONIC SENSOR (FRONT CORNER SENSOR LH)

  1. Replace the No. 1 ultrasonic sensor (front corner sensor LH) with a normally functioning one (Click here).


NEXT


3.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    Result
    Result
    		Proceed to
    DTC C1AE1 is not output.
    		A
    DTC C1AE1 is output.
    		B



B
REPLACE CLEARANCE WARNING ECU ASSEMBLY (Click here)
A

END (NO. 1 ULTRASONIC SENSOR [FRONT CORNER SENSOR LH] IS DEFECTIVE)