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:
Reassembly
1. INSTALL IGNITION OR STARTER SWITCH
ASSEMBLY
(a) Install the ignition or starter switch assembly to the
steering column bracket assembly UPR with the 2
screws.
2. INSTALL KEY INTER LOCK SOLENOID
(a) Install the solenoid to the steering column bracket
assembly with the 2 screws.
3. INSTALL ...
Light Control Switch Circuit
DESCRIPTION
This circuit detects the state of the headlight dimmer switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
Turn the ignition switch ON and push the intelligent
tester main switch ON.
Select t ...
Reassembly
1. INSTALL LOWER RADIATOR GRILLE
Engage the 16 claws to install the lower radiator
grille to the front bumper cover.
2. INSTALL FRONT BUMPER HOLE COVER LH (w/o
Fog Light)
Engage the 2 pins to install the front bumper hole
cover LH to the front bumper cover.
3. INSTALL FRON ...
