The rear center ultrasonic sensor (RRC sensor) is installed on the rear bumper. The clearance warning ECU assembly detects obstacles based on signals it receives from the rear center ultrasonic sensor (RRC sensor). If an open circuit or other malfunction occurs in the rear center ultrasonic sensor (RRC sensor), the rear center ultrasonic sensor (RRC sensor) does not operate correctly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AE896 | Ultrasonic Sensor (Rear Right Center) Component Internal Failure | Rear center ultrasonic sensor (RRC sensor) failure | ·
Rear center ultrasonic sensor (RRC sensor) ·
Clearance warning ECU assembly |
If a DTC is detected again after the repair, turn the ignition switch to ON and turn the TOYOTA parking assist-sensor system on, and then clear the DTC.
Check for DTCs.
| Result | Proceed to |
|---|---|
| C1AE896 is not output | A |
| C1AE896 is output | B |
| C1AE896 and C1AE887 are output | C |
A
B
C
Replace the rear center ultrasonic sensor (RRC sensor) with a known good one.
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.
| Proceed to |
|---|
| NEXT |
NEXT
Clear the DTCs.
| Proceed to |
|---|
| NEXT |
NEXT
Check for DTCs.
| Result | Proceed to |
|---|---|
| C1AE896 is not output | A |
| C1AE896 is output | B |
A
B