Toyota Parking Assist-Sensor System (W/O Multi-Display) Back Sonar Sensor Rh Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH)
CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - REAR CENTER SENSOR LH)
TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/o Multi-display) - Back 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.INSPECT NO. 1 ULTRASONIC SENSOR (REAR CENTER SENSOR RH) |
Remove the No. 1 ultrasonic sensor (rear center sensor RH) (LandCruiser RM00000470F01FX.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
1 (BI) - 5 (EI)
| Always
| 10 kΩ or higher
|
1 (BI) - 2 (BO)
| Always
| 10 kΩ or higher
|
3 (SI) - 4 (SO)
| Always
| Below 1 Ω
|
5 (EI) - 6 (EO)
| Always
| Below 1 Ω
|
| 2.CHECK HARNESS AND CONNECTOR (REAR CENTER SENSOR RH - REAR CENTER SENSOR LH) |
Disconnect the U4 No. 1 ultrasonic sensor (rear center sensor RH) connector.
Disconnect the V4 No. 1 ultrasonic sensor (rear center sensor LH) connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
U4-1 (BI) - V4-2 (BO)
| Always
| Below 1 Ω
|
U4-3 (SI) - V4-4 (SO)
| Always
| Below 1 Ω
|
U4-5 (EI) - V4-6 (EO)
| Always
| Below 1 Ω
|
U4-1 (BI) - Body ground
| Always
| 10 kΩ or higher
|
U4-3 (SI) - Body ground
| Always
| 10 kΩ or higher
|
U4-5 (EI) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
