TOYOTA PARKING ASSIST-SENSOR SYSTEM, Diagnostic DTC:C1AE8

DTC Code DTC Name
C1AE8 Rear Right Center Sensor Malfunction

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
C1AE8 A malfunction of the No. 1 ultrasonic sensor (RRC sensor).

  • No. 1 ultrasonic sensor (RRC sensor)

  • Parking assist ECU*1

  • Clearance warning ECU assembly*2

CAUTION / NOTICE / HINT

Note

If the DTC is output after repairs, turn the engine switch on (IG) and move the shift lever to R. Then clear the DTC.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC C1AE8 is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. REPLACE NO. 1 ULTRASONIC SENSOR (RRC SENSOR)


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


    NEXT

  3. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC C1AE8 is not output A
      DTC C1AE8 is output (w/ Side Monitor System) B
      DTC C1AE8 is output (w/o Side Monitor System) C

    A

    END (NO. 1 ULTRASONIC SENSOR [RRC SENSOR] IS DEFECTIVE)

    B

    REPLACE PARKING ASSIST ECU Click here

    C

    REPLACE CLEARANCE WARNING ECU ASSEMBLY Click here