Dtc C1Ae9 Rear Right Sensor Malfunction

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - PARK ASSIST / MONITORING

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

REPLACE NO. 1 ULTRASONIC SENSOR (RR SENSOR)

CHECK FOR DTC

DTC C1AE9 Rear Right Sensor Malfunction

DESCRIPTION

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

DTC CodeDTC Detection ConditionTrouble Area
C1AE9A malfunction of the No. 1 ultrasonic sensor (RR sensor).
No. 1 ultrasonic sensor (RR sensor)
Parking assist ECU*1
Clearance warning ECU assembly*2
*1: w/ Side Mode System
*2: w/o Side Mode System

INSPECTION PROCEDURE

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

Clear the DTCs ().

Check for DTCs ().

  • OK:
  • DTC C1AE9 is not output.
NG
Go to step 2
OK
USE SIMULATION METHOD TO CHECK ()
2.REPLACE NO. 1 ULTRASONIC SENSOR (RR SENSOR)

Replace the No. 1 ultrasonic sensor (RR sensor) with a normally functioning one ().

NEXT
3.CHECK FOR DTC

Clear the DTCs ().

Check for DTCs ().

Result
ResultProceed to
DTC C1AE9 is not outputA
DTC C1AE9 is output (w/ Side Mode System)B
DTC C1AE9 is output (w/o Side Mode System)C
B
REPLACE PARKING ASSIST ECU ()
C
REPLACE CLEARANCE WARNING ECU ASSEMBLY ()
A
END (NO. 1 ULTRASONIC SENSOR [RR SENSOR] IS DEFECTIVE)