Toyota Sienna Service Manual: Air conditioning system (for manual air conditioning system)

Back-up Power Source Circuit

DESCRIPTION This is the back-up power source for the A/C amplifier. Power is supplied even when the ignition switch is off and is used for diagnostic trouble code memory, etc. WIRING DIAGRAM ...

Precaution

NOTICE: Because the compressor operates at high voltages, wear electric insulated gloves and pull out the service plug to cut the high-voltage circuit before inspection. 1. DO NOT HANDLE REFRIGERA ...

Other materials:

No Sound can be Heard from Speakers
INSPECTION PROCEDURE 1 CHECK AUDIO SETTINGS Enter the sound adjustment screen by pressing the "SOUND" switch on the AUDIO display.  Set volume, fader, and balance to the initial values and check that sound is normal. OK: Audio system returns to normal. HINT: Sou ...

Drive information
Average fuel economy*1, 2 Displays the average fuel consumption since the function was reset.*3 Tank average fuel economy*1, 2 Displays the average fuel consumption since the vehicle was refueled. Trip average fuel economy*1, 2 Displays the average fuel consumption since the engine wa ...

Air Intake Control Circuit
DESCRIPTION The air cleaner is equipped with two inlets, one of which is opened or closed by the Air Intake Control Valve (AICV). This system reduces intake noise and increases engine power at low-to-high engine speed range. When the engine is operating in the low-to-mid speed range, this ...