This information is helpful. Thanks for your quick reply. I have not had time to work on this until now. I will let you know what I find out.

The A/C and heat on my 2005 Vibe blow out of the two outside vents on the dash and the defrost vent but do not blow out of the two center dash vents.Can someone please help me troubleshoot the problem?

As stated before, I had replaced the resistor and motor and had tested the relay (it clicked when I applied power to it). After reading your last post I decided to replace the relay before messing with the switch. That turned out to be the problem. It all works fine now. Your information was thoroug...

Thanks for your quick reply. Your information is excellent. If I determine that the control switch is the likely culprit is there a way to test it or should i just replace it?

The heater fan on my 2005 Vibe worked intermittently for a few days then stopped completely. All the fuses are good. Hooked the motor directly to current. It is good. Replaced the resistor. Removed and tested the motor relay. It is good. I assume the next step is to check the speed control switch. C...