Toyota Parking Assist-Sensor System (W/O Multi-Display) Clearance Warning Buzzer Circuit
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (NO. 1 CLEARANCE WARNING BUZZER - CLEARANCE WARNING ECU)
TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/o Multi-display) - Clearance Warning Buzzer Circuit |
DESCRIPTION
The clearance warning buzzer sounds to alert the driver. The sounding pattern changes according to the distance to the obstacle.
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
| 1.CHECK HARNESS AND CONNECTOR (NO. 1 CLEARANCE WARNING BUZZER - CLEARANCE WARNING ECU) |
Disconnect the I1 clearance warning ECU connector.
Disconnect the G161 No. 1 clearance warning buzzer connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
I1-14 (BBZ) - G161-1 (Z+)
| Always
| Below 1 Ω
|
I1-12 (EF) - G161-2 (Z-)
| Always
| Below 1 Ω
|
I1-14 (BBZ) - Body ground
| Always
| 10 kΩ or higher
|
I1-12 (EF) - Body ground
| Always
| 10 kΩ or higher
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
