Toyota Sienna Service Manual: Adjustment
1. ADJUST BUZZER VOLUME
- Turn the knob on the clearance warning ECU to adjust the volume.
- Park / Neutral Position Switch Circuit
- Speed Signal Circuit
- Back Sonar Sensor LH Circuit
- Back Sonar Sensor RH Circuit
- Front Clearance Sonar Sensor LH Circuit
- Front Clearance Sonar Sensor RH Circuit
- Rear Clearance Sonar Sensor LH Circuit
- Rear Clearance Sonar Sensor RH Circuit
- No. 1 Clearance Warning Buzzer Circuit
- Clearance Warning ECU Power Source Circuit
- No. 2 Clearance Warning Buzzer Circuit
- Indicator Circuit
Terminals of ECU
1. CLEARANCE WARNING ECU
*1: with Front Clearance Sonar
2. AIR CONDITIONER AMPLIFIER ASSEMBLY
*1: with Front Clearance Sonar
*2: Manual A/C
*3: Auto A/C
Reference: ...
Park / Neutral Position Switch Circuit
DESCRIPTION
The clearance warning ECU receives the reverse or park position signal from
the park / neutral position
switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT CLEARANCE WARNING E ...
Other materials:
What to do if... (Troubleshooting)
If there is a problem with the hands-free system or a Bluetooth®
device, first check the table below.
When using the hands-free system with a Bluetooth® device
The hands-free system or Bluetooth® device does not
work.
The connected device may not be a compatible Bl ...
Tire Pressure Warning Reset Switch Circuit
DESCRIPTION
The ECU enters the initialization mode and performs initialization
automatically, when the tire pressure
warning ECU receives the signal from the tire pressure warning reset switch. If
the ECU receives the
signal, the tire pressure warning light blinks 3 times (1 second on, 1 seco ...
Hitch
Trailer hitch assemblies have different weight capacities. Toyota recommends
the use of Toyota hitch/bracket for your vehicle. For details,
contact your Toyota dealer.
If you wish to install a trailer hitch, contact your Toyota
dealer.
Use only a hitch that conforms to the gross trailer w ...
