Toyota RAV4 manuals

Toyota Sienna Service Manual: Room Temperature Sensor Circuit

DESCRIPTION

This sensor detects the cabin temperature that is used as the basis for temperature control and sends a signal to 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 item 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 A/C ROOM TEMPERATURE SENSOR

INSPECT A/C ROOM TEMPERATURE SENSOR

(a) Remove the A/C room temperature sensor.

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

Standard resistance

NOTICE:

HINT: As the temperature increases, the resistance decreases (see the graph).

3 CHECK HARNESS AND CONNECTOR (A/C ROOM TEMPERATURE SENSOR - A/C AMPLIFIER)

CHECK HARNESS AND CONNECTOR (A/C ROOM TEMPERATURE SENSOR - A/C AMPLIFIER)

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

CHECK HARNESS AND CONNECTOR (A/C ROOM TEMPERATURE SENSOR - A/C AMPLIFIER)

(b) Disconnect the connector from the A/C room temperature sensor.

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

Standard resistance

REPLACE A/C AMPLIFIER

Actuator check
1. ACTUATOR CHECK (a) After entering the DTC check mode (Sensor Check Mode), press the R/F switch. (b) As each damper, motor and relay automatically operate actuator check at 1-second interval ...

Ambient temperature sensor circuit
DTC B1412/12 Ambient Temperature Sensor Circuit DESCRIPTION The ambient temperature sensor is installed in front of the condenser to detect the ambient temperature which is used to control the ai ...

Other materials:

Parking brake
Operating instructions To set the parking brake, fully depress the parking brake pedal with your left foot while depressing the brake pedal with your right foot. (Depressing the pedal again releases the parking brake.) Usage in winter time NOTICEBefore driving Fully release ...

On-vehicle cleaning
1. INSPECT RADIATOR ASSEMBLY (a) Check that the radiator and condenser are not blocked with leaves, dirt, or insects. Clean the hose connections. If the fins are blocked, wash them with water or a steam cleaner. NOTICE: If the distance between the steam cleaner and core is ...

When towing full-time 4wd vehicles
Use one of the methods shown below to tow the vehicle. If the vehicle has trouble with the chassis or drive train, use method 1 (flat bed truck). WHEN TOWING FULL-TIME 4WD VEHICLES NOTICE: Do not use any towing method other than those shown above. The towing methods shown b ...

В© 2011-2026 Copyright www.tsienna.net