TOYOTA PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:C1AE9

DTC Code DTC Name
C1AE9 Rear Right Sensor

DESCRIPTION

The NO. 2 ultrasonic sensor (rear corner sensor RH) is installed on the rear bumper. The ECU detects obstacles based on signals received from the NO. 2 ultrasonic sensor (rear corner sensor RH). If the NO. 2 ultrasonic sensor (rear corner sensor RH) has an open or other malfunction, it will not function normally.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AE9 Rear Right Sensor A malfunction of the NO. 2 ultrasonic sensor (rear corner sensor RH).

  • NO. 2 ultrasonic sensor (rear corner sensor RH)

  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

Note

If the DTC is output after repairs, turn the engine switch on (IG) and turn the TOYOTA parking assist-sensor system on. Then clear the DTC Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      Only DTC C1AE9 is output A
      DTC C1AE9 and C1AED are output B
      No DTC is output C

    B

    GO TO DTC (C1AED) Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. REPLACE NO. 2 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)


    1. Replace the NO. 2 ultrasonic sensor (rear corner sensor RH) with a normally functioning sensor.

      Click here

      Result
      Result
      NEXT

    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Clearance Sonar > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Clearance Sonar > Trouble Codes
      Result
      Result Proceed to
      DTC C1AE9 is output A
      No DTC is output B

    A

    REPLACE CLEARANCE WARNING ECU ASSEMBLY Click here

    B

    END (NO. 2 ULTRASONIC SENSOR WAS DEFECTIVE)