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:
Inspection
1. INSPECT PACK CLEARANCE OF FORWARD CLUTCH
(a) Install the forward clutch on the oil pump.
NOTICE:
Be careful not to damage the oil seal ring of oil
pump.
b) Using a dial indicator, measure the forward clutch
pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm ...
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The likely causes of the problem are
indicated in descending order. Check each suspected area
in order. Repair or replace faulty parts or perform
adjustments as necessary.
Inspect the fuse and rel ...
Problem symptoms table
ENTIRE SYSTEM
METER GAUGES
WARNING LIGHTS
INDICATOR LIGHTS
BUZZER
ACCESSORY METER ASSEMBLY
...
