Toyota Parking Assist-Sensor System Back Sonar Sensor Lh Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - REAR LEFT CENTER SENSOR)
INSPECT NO. 2 ULTRASONIC SENSOR (REAR LEFT CENTER SENSOR)
TOYOTA PARKING ASSIST-SENSOR SYSTEM - Back Sonar Sensor LH Circuit |
DESCRIPTION
The No. 2 ultrasonic sensor (rear left center sensor) is installed on the rear bumper.The clearance warning ECU detects obstacles based on signals received from the rear left center sensor. If the rear left center 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 CENTER SENSOR) |
Disconnect the S17 connector from the clearance warning ECU.
Disconnect the j1 connector from the No. 2 ultrasonic sensor (rear left center sensor).
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
S17-27 (E4) - j1-1 (E)
| Always
| Below 1 Ω
|
S17-28 (S4) - j1-2 (S)
| Always
| Below 1 Ω
|
S17-27 (E4) - Body ground
| Always
| 10 kΩ or higher
|
S17-28 (S4) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 2.INSPECT NO. 2 ULTRASONIC SENSOR (REAR LEFT CENTER SENSOR) |
Remove the No. 2 ultrasonic sensor (rear left center 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 (E) - 2 (S)
| Always
| 11.8 to 15.8 kΩ
|
