2007 Prius A/C not doing ANYTHING when turned on

Get it fixed right right now! Where do u live...hell?
That's to hot!
Lets us know if it's a fuse or something worse. Always check the simple stuff first.

SCH-I535 ? 2

 

The problem likely is a failed cabin ventilation blower motor, a blown fuse, a failed HTR relay or an MFD that is not operative.

Regarding the fuses, check the 40A HTR fuse, the 10A Gauge fuse, the 10A A/C (HTR) fuse, and the 15A ECU-B fuse as they provide power to the A/C control assembly and the blower motor controller which then provides power to the blower motor. You can find the fuses in the main relay/fuse box next to the inverter and also the fuse block which is under the instrument panel on the driver's side. The 40A HTR fuse is part of the fusible link assembly which is located in the ~5" long white/clear plastic rectangular box within the main relay/fuse box. Look for a burnt out link in that box. The other fuses should be checked by removing one at a time and using an ohmmeter to verify continuity. Do not rely upon visual inspection.

The HTR relay can be tested by removing the relay from its socket and using an ohmmeter to determine which contacts are for the relay coil. Apply 12VDC to those contacts and measure resistance across the switched contacts. Replace the relay if the resistance is greater than 0.5 ohm.

The blower motor is on the passenger side of the dashboard and the top of it can be seen if you remove the lower glove box, take out the cabin air filter, and look into the filter slot. Perhaps you can remove the blower motor cover at the very bottom of the assembly which will then allow you to see the bottom of the blower motor.

That may allow you access to the wiring harness connector so you can use a voltmeter to measure whether DC voltage exists when the fan is supposed to be on. If you can measure voltage but the fan is not spinning, then the motor is bad.

Substantial disassembly of the instrument panel (such as removal of the passenger airbag assembly, some of the ECUs, and some ducting) may be required to provide clearance to actually remove the blower motor, you'll have to see what is involved after you remove the blower motor cover.

You can obtain repair manual and wiring diagram information at techinfo.toyota.com which is a subscription website.

If following the above is beyond you, then visit your local Toyota dealer for assistance. Good luck.

 

I agree with Patrick. It is most likely the blower motor. Right under the dash behind the glove box. Unplug, 4 bolts, drop and replace. Same thing happend to my 07. You can find them for about $120.00 online. Good Luck!

 

As a test, you can try and give the blower motor a kindly tap with a mallet or suitable technological impact device. The possible problem with the motor is that the brushes can be worn and/or stuck, and an impact can get them to reseat on the commutator.

 

You can also remove the cabin filter and reach in and try to spin the motor. This will let you know if it is bound, and the push may get it going again. I did that a few times until it finally stopped...

 

My car, an 09 had the same issue. It turned out to be the blower motor. As stated you can test by removing the cab filter and attempting to spin the motor by hand to see if it will engage. The replacement was very simple on my 09. The computer on the bottom section was unbolted and set off to the side. There are five small screws that hold the lower plastic cover in place. Once those are removed the blower is held in place by three torx bolts. There is a cutout for the wiring harness for the blower motor so you do not pinch the wires.Make sure that you get the white bottom cover in place to allow the replacement of the five screws. Takes about thirty minutes.

 

Any update??

 

Time to check the screen feeding air(cool) to the hybrid batteries, it's to the right of the rear right seat in the passenger compartment, it's possibly dirty