Toyota Parking Assist-Sensor System (W/O Multi-Display) Rear Clearance Sonar Sensor Rh Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH)
CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - REAR CENTER SENSOR RH)
TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/o Multi-display) - Rear Clearance Sonar Sensor RH Circuit |
DESCRIPTION
The ultrasonic sensor sends and receives ultrasonic waves. Based on the received wave, the sensor calculates the approximate distance between the vehicle and obstacle and sends the distance value as a signal to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.REPLACE NO. 1 ULTRASONIC SENSOR (REAR CORNER SENSOR RH) |
Replace the No. 1 ultrasonic sensor with a normally functioning sensor (LandCruiser RM00000470F01FX.html).
| 2.CHECK HARNESS AND CONNECTOR (REAR CORNER SENSOR RH - REAR CENTER SENSOR RH) |
Disconnect the U5 No. 1 clearance sensor (rear corner sensor RH) connector.
Disconnect the U4 No. 1 clearance sensor (rear center sensor RH) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
U5-1 (BI) - U4-2 (BO)
| Always
| Below 1 Ω
|
U5-3 (SI) - U4-4 (SO)
| Always
| Below 1 Ω
|
U5-5 (EI) - U4-6 (EO)
| Always
| Below 1 Ω
|
U5-1 (BI) - Body ground
| Always
| 10 kΩ or higher
|
U5-3 (SI) - Body ground
| Always
| 10 kΩ or higher
|
U5-5 (EI) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
