TOYOTA PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:C1AE6

DTC Code DTC Name
C1AE6 Rear Left Sensor Malfunction

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 LH. If the rear corner ultrasonic sensor LH has an open circuit or other malfunction, it will not function normally.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AE6 Rear Left Sensor Malfunction A malfunction of the rear corner ultrasonic sensor LH.

  • Rear corner ultrasonic sensor LH

  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

Note

If DTCs are output after repairs, turn the engine switch on (IG) and the TOYOTA parking assist-sensor system on. Then clear the DTCs.

Click here

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Check for DTCs.


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      Only DTC C1AE6 is output A
      DTC C1AE6 and C1AED are output B
      No DTCs are output C

    B

    GO TO DTC (C1AED) Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. REPLACE REAR CORNER ULTRASONIC SENSOR LH


    1. Replace the rear corner ultrasonic sensor LH with a known good one.

      Click here

      Tech Tips

      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.

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK DTC OUTPUT


    1. Clear the DTCs.


      Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

    2. Check for DTCs.


      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      DTC C1AE6 is output A
      No DTCs are output B

    A

    REPLACE CLEARANCE WARNING ECU ASSEMBLY Click here

    B

    END (REAR CORNER ULTRASONIC SENSOR LH WAS DEFECTIVE)