Toyota RAV4 manuals

Toyota Sienna Service Manual: Air Inlet Damper Control Servo Motor Circuit

DESCRIPTION

The air inlet control servo motor is controlled by the A/C amplifier and moved to the desired position.

The air inlet control servo motor switches the air inlet mode by rotating (normal, reverse) with electrical power from the A/C amplifier. This controls intake air and changes the mode between "RECIRCULATION", "FRESH", and "HALF-RECIRCULATION".

WIRING DIAGRAM

Air Inlet 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 "RECIRCULATION" (- 10%), the actual opening angle is 19.0% or less.

When the target position is "FRESH" (110%), the actual opening angle is 81.0% or more.

Result

2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

(a) Remove the glove box to see and check the recirculation damper operation.

(b) Connect the intelligent tester to the DLC3.

(c) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.

(d) Select the item below in the ACTIVE TEST and then check that the damper operates.

ACTIVE TEST / AIR CONDITIONER

OK: Lever turns from "RECIRCULATION" side to "FRESH" side smoothly.

Lever turns from "FRESH" side to "RECIRCULATION" side smoothly.

Result

3 PERFORM ACTUATOR CHECK

(a) Remove the glove box to see and check the recirculation damper operation.

(b) Enter the actuator check mode (See page AC-15).

(c) Press the DEF switch and check the operation of the recirculation damper.

OK: Recirculation damper position changes in accordance with each display code.

Result

4 INSPECT AIR INLET CONTROL SERVO MOTOR

INSPECT AIR INLET CONTROL SERVO MOTOR

(a) Remove the air inlet control servo motor.

(b) Disconnect the connector from the air inlet control servo motor.

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

OK: Lever turns to "FRESH" position smoothly.

(d) 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 "RECIRCULATION" position smoothly.

OK: Lever turns to "RECIRCULATION" position smoothly.

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

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

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

CHECK HARNESS AND CONNECTOR (AIR INLET 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

Air Mix Damper Control Servo Motor Circuit (Passenger Side)
DESCRIPTION The air mix control servo motor (air mix damper servo sub-assembly) is controlled by the A/C amplifier. The air mix control servo motor moves the air mix damper by rotating (normal, ...

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 ...

Other materials:

How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS 3 CHECK AND CLEAR DTCs Refer to the diagnostic check/clear 4 PROBLEM SYMPTOM CONFIRMATION 5 SYMPTOM SIMULATION 6 CHECK DTC 7 CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM Refer to the navigation system 8 PROBLE ...

Turbine Speed Sensor Circuit No Signal
DESCRIPTION This sensor detects the rotation speed of the input turbine. By comparing the input turbine speed signal (NT) with the counter gear speed sensor signal (NC), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure accor ...

Vehicle lift and support locations
1. NOTICE ABOUT VEHICLE CONDITION WHEN JACKING UP VEHICLE (a) The vehicle must be unloaded before jacking up/ lifting up the vehicle. Never jack up/lift up a heavily loaded vehicle. (b) When removing heavy parts such as the engine and transmission, the center of gravity of the vehicle may s ...

В© 2011-2019 Copyright www.tsienna.net