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:
Installation
1. INSTALL REAR DIFFERENTIAL DRIVE PINION
BEARING SPACER
(a) Install a new bearing spacer.
2. INSTALL REAR DRIVE PINION FRONT TAPERED
ROLLER BEARING
(a) Install the tapered roller bearing.
3. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER
(a) Install the oil slinger, as shown in the i ...
Engine Hood Courtesy Switch Circuit
DESCRIPTION
The engine hood courtesy switch is built in the engine hood lock assembly.
The switch turns on when the
engine hood is opened and turns off when the engine hood is closed.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT ENGINE HOOD COURTESY SWITCH
Remove the courtesy swi ...
Removal
HINT:
Remove the RH side by same procedures with LH side.
1. REMOVE FRONT WHEEL
2. REMOVE FRONT FENDER LINER LH
3. REMOVE FRONT SPEED SENSOR LH
(a) Disconnect the speed sensor connector.
(b) Remove the sensor harness and clamp from the
body.
(c) Remove the 2 clamp bolts holding the ...
