Toyota Parking Assist-Sensor System Rear Clearance Sonar Sensor Lh Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - REAR LEFT SENSOR)
INSPECT NO. 1 ULTRASONIC SENSOR (REAR LEFT SENSOR)
TOYOTA PARKING ASSIST-SENSOR SYSTEM - Rear Clearance Sonar Sensor LH Circuit |
DESCRIPTION
The No. 1 ultrasonic sensor (rear left sensor) is installed on the rear bumper.The clearance warning ECU detects obstacles based on signals received from the rear left sensor. If the rear left sensor circuit has an open, short or other malfunction, it will not function normally.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - REAR LEFT SENSOR) |
Disconnect the S17 connector from the clearance warning ECU.
Disconnect the j3 connector from the No. 1 ultrasonic sensor (rear left sensor).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
S17-13 (S2) - j3-1 (S)
| Always
| Below 1 Ω
|
S17-14 (E5) - j3-2 (E)
| Always
| Below 1 Ω
|
S17-13 (S2) - Body ground
| Always
| 10 kΩ or higher
|
S17-14 (E5) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 2.INSPECT NO. 1 ULTRASONIC SENSOR (REAR LEFT SENSOR) |
Remove the No. 1 ultrasonic sensor (rear left sensor) (CAMRY_ACV40 RM000001PYF011X.html).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
1 (S) - 2 (E)
| Always
| 8 to 12 kΩ
|
