Toyota Sienna Service Manual: Air conditioning control assembly

Heater relay (for rear air conditioning system)

ON-VEHICLE INSPECTION 1. INSPECT REAR HEATER RELAY (a) Remove the rear heater relay. (b) Measure the resistance according to the value(s) in the table below. Standard resistance If the re ...

Removal

1. REMOVE AIR CONDITIONING NO.2 CONTROL ASSEMBLY (a) Release the 4 claw fittings and release the air conditioning No. 2 control assembly. (b) Disconnect the connectors and remove the air con ...

Other materials:

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 s ...

Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone. Operating a telephone using the steering wheel switches Volume switch Increase/Decrease the volume Press and hold: Continuously increase/ decrease the volume Cursor switch Select a list/t ...

Rear speaker
COMPONENTS ON-VEHICLE INSPECTION 1. INSPECT REAR SPEAKER HINT: Remove interior parts so that the rear speaker can be seen.  Check the speaker installation. OK: The speaker is securely installed. If the result is not as specified, reinstall the rear speaker.  Vi ...