Toyota Sienna Service Manual: Rear Air Outlet Damper Control Servo Motor Circuit
DESCRIPTION
This circuit turns the servo motor and changes each damper position by receiving the signals from the A/ C amplifier.
The rear air outlet damper servo motor switches the air outlet mode by rotating
(normal, reverse) with
electrical power from the A/C amplifier.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
(c) Select the items below in the DATA LIST, and read the display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK: When the target position is "FACE1" (0%), the actual opening angle is 19.0% or less.
When the target position is "FOOT" (100%), the actual opening angle is 81.0% or more.
Result 
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
(c) Select the item below in the ACTIVE TEST and then check the air flow position by hand.
ACTIVE TEST / AIR CONDITIONER
OK: Air comes out from the selected air outlet.
Result
3 PERFORM ACTUATOR CHECK
(a) Warm up the engine.
(b) Enter the actuator check mode (See page AC-15).
(c) Press the DEF switch and change to step operation.
(d) Press the DEF switch and check the air flow by hand.
OK: Air outlet mode changes in accordance with each display code.
Result 
4 INSPECT REAR AIR OUTLET CONTROL SERVO MOTOR
(a) Remove the rear air outlet control servo motor.
(b) Disconnect the connector from the rear air outlet control servo motor.
(c) Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5, then check that the lever turns to the "FOOT" position smoothly.
OK: Lever turns to "FOOT" position smoothly.
5 CHECK HARNESS AND CONNECTOR (REAR AIR OUTLET CONTROL SERVO MOTOR - A/C AMPLIFIER)
(a) Disconnect the connector from the A/C amplifier.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE A/C AMPLIFIER
Rear Air Mix Damper Control Servo Motor Circuit
DESCRIPTION
The rear air mix control servo motor (water valve servo motor) is controlled
by the A/C amplifier.
The rear air mix control servo motor moves the air mix damper by rotating
(normal ...
Compressor Solenoid Circuit
DESCRIPTION
In this circuit, the compressor receives a refrigerant compression demand
signal from the A/C amplifier.
Based on this signal, the compressor changes the amount of compressor output. ...
Other materials:
Crankshaft Position Sensor
DESCRIPTION
The Crankshaft Position (CKP) sensor system consists of a CKP sensor plate
and a pickup coil. The
sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is
made of an iron core and a
magnet.
The sensor plate rotates as each tooth passes through the pi ...
Removal
1. REMOVE ROOF HEADLINING ASSEMBLY
2. REMOVE SLIDING ROOF SIDE GARNISH LH
Disengage the 3 claws.
Disengage the rear clip.
Disengage the front clip.
Remove the slide garnish by pulling it rearward.
3. REMOVE SLIDING ROOF SIDE GARNISH RH
HINT:
Use the same procedures described abov ...
Reassembly
1. INSTALL GENERATOR ROTOR ASSEMBLY
(a) Place the drive end frame on the clutch pulley.
(b) Install the generator rotor assembly to the drive end
frame.
(c) Place a new generator washer on the generator
rotor.
2. INSTALL GENERATOR COIL ASSEMBLY
(a) Using a deep socket wrench (21 ...
