Toyota RAV4 manuals

Toyota Sienna Service Manual: Air Inlet Damper Position Sensor Circuit

DESCRIPTION

Air Inlet Damper Position Sensor Circuit

This sensor detects the position of the air inlet control servo motor and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air inlet control servo motor.

The position sensor's resistance changes as the air inlet control servo motor arm moves.

It outputs voltage (5 V) that is input to terminal 1 and terminal 3 via the variable resistor, and then to the A/ C amplifier.

The A/C amplifier determines the arm position based on the input voltage from the position sensor.

WIRING DIAGRAM

Air Inlet Damper Position Sensor 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: The display is as specified in the normal condition column.

Result

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

Standard resistance

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

Standard resistance

INSPECT AIR INLET CONTROL SERVO MOTOR

(e) As the air inlet control servo motor moves from RECIRCULATION to FRESH, the resistance decreases gradually without interruption.

3 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

Standard resistance

Air Mix Damper Position Sensor Circuit (Passenger Side)
DESCRIPTION This sensor detects the position of the air mix control servo motor (air mix damper) and sends the appropriate signals to the A/C amplifier. The position sensor is built in the a ...

Air Outlet Damper Position Sensor Circuit
DESCRIPTION This sensor detects the position of the air outlet control servo motor and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air outlet contro ...

Other materials:

Open in Front Pretensioner Squib LH Circuit
DTC B0136/74 Open in Front Pretensioner Squib LH Circuit DESCRIPTION The front pretensioner squib LH circuit consists of the center airbag sensor assembly and the front seat outer belt assembly LH. This circuit instructs the SRS to deploy when deployment conditions are met. DTC B0136/74 i ...

Using the mechanical key (vehicles with a smart key system)
To take out the mechanical key, push the release button and take the key out. The mechanical key can only be inserted in one direction, as the key only has grooves on one side. If the key cannot be inserted in a lock cylinder, turn it over and reattempt to insert it. After using t ...

Rear Blower Motor Circuit
DESCRIPTION Power to the rear blower motor is supplied from the battery via the RR A/C relay. The rear blower motor speed level varies between 0 and 31 based on the voltage difference measured between the terminals of the motor. The voltage difference measured between the terminals of th ...

В© 2011-2026 Copyright www.tsienna.net