Toyota RAV4 manuals

Toyota Sienna Service Manual: Rear Room Temperature Sensor Circuit

DESCRIPTION

This sensor detects the rear cabin temperature that is used as the basis for temperature control and sends a signal to the A/C amplifier.

WIRING DIAGRAM

Rear Room Temperature 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 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 REAR A/C ROOM TEMPERATURE SENSOR

INSPECT REAR A/C ROOM TEMPERATURE SENSOR

(a) Remove the rear 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 (REAR A/C ROOM TEMPERATURE SENSOR - A/C AMPLIFIER)

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

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

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

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

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

Standard resistance

REPLACE A/C AMPLIFIER

Rear evaporator temperature sensor circuit
DESCRIPTION The rear evaporator temperature sensor is installed on the rear evaporator. It detects the rear evaporator temperature. The sensor sends a signal to the A/C amplifier. The resistance o ...

Solar Sensor Circuit (Passenger Side)
DTC B1421/21 Solar Sensor Circuit (Passenger Side) DESCRIPTION The solar sensor, which is installed on the upper side of the instrument panel, detects sunlight and controls the air conditioni ...

Other materials:

Operation check
NOTICE: Inspection should be started after conforming that the items listed in the "CUSTOMIZE PARAMETER" for the power back door system have defaulted to the initial settings 1. CHECK OPENING OPERATION Conditions necessary for the power back door to open: Power back d ...

Problem symptoms table
HINT:  Before performing verification listed in the table below, check the fuse and relay.  Check the circuits for each problem symptom in the order given in the table below, and proceed to the relevant page. CLEARANCE SONAR SYSTEM: *1: with Front Clearance Sonar *2: wit ...

Stowing the spare tire
Lay down the tire with the outer side (valve stem) facing up, and install the holding bracket. Turn the jack handle clockwise to raise the tire until the tire is in the correct position as the jack handle skips. Stow the tools. The compact spare tire The compact s ...

В© 2011-2025 Copyright www.tsienna.net