I have a 1999 Pontiac Bonneville. The air conditioner fan is now running non-stop, even when the ignition is turned off & the key is removed. The only way I've been able to get it to turn off is by disconnecting the car battery. Is there some sort of HVAC relay module that needs to be replaced? If so, where is it located? Is there a diagram that shows where it is located? Is the repair something that I can do myself?

SOURCE: air conditioner pulley

yes go to autozone .com get a/c by pass pully $39.99

SOURCE: 2005 Pontiac Bonneville hvac blower does not come on

Start by checking the blower resistor. It should be under the dash on the passenger side near the blower itself. You will need to remove the glove box to access it. It is a small plate that has only a few screws and a group of wires that go to a plug in the center. Unplug it and remove the screws. When you pull it out it should look like a series of small spring shaped coils. Most likely one or two of them will be burned up. Replace it in reverse order and your blower should start working again. If this is not the problem then test the fan motor itself. Hope this helps. Good luck.

Robert Veldman

• 373 Answers
• Posted on Oct 09, 2009

SOURCE: 2005 Pontiac Bonneville hvac blower does not come on

The blower on my 2005 Bonny GXP quit at about 60,000 miles (I really like using High). The blower is under the passenger dash. Mine had a three wire connector. The center wire should have 12 volts. It doesn't take very long to pull the fan out. Mine was toasted. Aftermarket fan was about $130.
See this website for my instructions:
http://www.bonnevilleforum.com/t277509/

SOURCE: My 1999 Pontiac Bonneville will not start. When

The security system has been activated call the dealer to getthe deatils on how to reset it, normally you pull the security fuse for 30 seconds to restet it. if that does not work call the dealer and they can help you.

SOURCE: i have a 92 pontiac bonneville with a no spark

crank trigger!