Toyota RAV4 manuals

Toyota Sienna Service Manual: Air Mix Damper Position Sensor Circuit (Passenger Side)

DESCRIPTION

Air Mix Damper Position Sensor Circuit (Passenger Side)

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 air mix control servo motor. The position sensor's resistance changes as the air mix 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 Mix Damper Position Sensor Circuit (Passenger Side)

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 MIX CONTROL SERVO MOTOR

INSPECT AIR MIX CONTROL SERVO MOTOR

(a) Remove the air mix control servo motor.

(b) Disconnect the connector from the air mix 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 MIX CONTROL SERVO MOTOR

(e) As the air mix control servo motor moves from the cool side to the hot side, the resistance decreases gradually without interruption.

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

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

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

CHECK HARNESS AND CONNECTOR (AIR MIX 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

Solar Sensor Circuit (Driver Side)
DESCRIPTION The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioning in AUTO mode. The output voltage from the solar ...

Air Inlet Damper Position Sensor Circuit
DESCRIPTION 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 ...

Other materials:

Other functions
Switching between outside air and recirculated air modes Press . The mode switches between outside air mode ( appears on the display) and recirculated air mode ( appears on the display) each time the button is pressed. Defogging the windshield Defoggers are used to defog the windshield a ...

SRS Warning Light Remains ON
DESCRIPTION The SRS warning light is located on the combination meter assembly. When the SRS is normal, the SRS warning light comes on for approximately 6 seconds after the ignition switch is turned from the LOCK position to ON position, and then goes off automatically. If there is a mal ...

Cooling fan relay
On-vehicle inspection 1. Cooling fan relay (a) Remove the relay from engine room relay block No. 1. (b) Measure the resistance of the relay. Standard resistance If the result is not as specified, replace the cooling fan relay. (c) Install the relay to engine room relay block No. ...

В© 2011-2021 Copyright www.tsienna.net