Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 air outlet damper servo motor switches the air outlet mode by rotating (normal, reverse) with electrical power from the A/C amplifier.

When the AUTO switch is on, the A/C amplifier changes the mode between "FACE", "FACE/FOOT" and "FOOT" according to the temperature setting.

WIRING DIAGRAM

Air Outlet Damper Control Servo Motor Circuit

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 "FACE" (0%), the actual opening angle is 19.0% or less.

When the target position is "DEF" (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 that 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 AIR OUTLET CONTROL SERVO MOTOR

 INSPECT AIR OUTLET CONTROL SERVO MOTOR

(a) Remove the air outlet control servo motor.

(b) Disconnect the connector from the 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 "DEF" position smoothly.

OK: Lever turns to "DEF" position smoothly.

(d) Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, then check that the lever turn to the "FACE" position smoothly.

OK: Lever turns to "FACE" position smoothly.

5 CHECK HARNESS AND CONNECTOR (AIR OUTLET CONTROL SERVO MOTOR - A/C AMPLIFIER)

CHECK HARNESS AND CONNECTOR (AIR OUTLET CONTROL SERVO MOTOR - A/C AMPLIFIER)

(a) Disconnect the connector from the A/C amplifier.

HECK HARNESS AND CONNECTOR (AIR OUTLET CONTROL SERVO MOTOR - A/C AMPLIFIER)

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

REPLACE A/C AMPLIFIER

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Other materials:

Inspection
1. INSPECT FRONT STABILIZER LINK ASSEMBLY LH (a) As shown in the illustration, flip the ball joint stud back and forth 5 times, before installing the nut. (b) Using a torque wrench, turn the nut continuously at a rate of 2 to 4 seconds per 1 turn and take the torque reading on the 5th turn. ...

Data list / active test
1. USING INTELLIGENT TESTER  Connect the intelligent tester to the DLC3.  Monitor the ECU data by following the prompts on the tester screen. HINT: The intelligent tester has a "Snapshot" function which records the monitored data. Refer to the intelligent tester ope ...

Registration
NOTICE: The Vehicle Identification Number (VIN) must be input into the replacement ECM. HINT: The VIN is a 17-digit alphanumeric vehicle identification number. The intelligent tester is required to register the VIN. 1. INPUT INSTRUCTIONS  The general VIN input instructions using the ...

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