I had the exact problem with my 2004 canyon . Driving fine then die, the DIC would sayReduced power then I would have to wait a minute and it would refire. PROBLEM SOLVED!!! Didn't post until two weeks later to be sure. Replaced Powertrain Control Module 765.00$ had to have the dealer do it because it has to be programmed . Good Luck!!!!!
SOURCE: 2004 gmc canyon fan moter for ac dont work
There is a fuse I would check first if you haven't tried that yet. They had problems with the switches in some of those vehicles. If you could take the control out and unpug then reattach the plug it may start working meaning the switch is bad.
You may have a bad fan motor. Do you have a test light to check for voltage at the motor itself?
Lastly, there is a resistor set that changes from low to high that may have one or more resistors burned out.
Dale
SOURCE: Remove radio/cd from 2004 GMC Canyon
Check out Crutchfield.com. They have detailed instructions on how-to install radios in your Canyon.
SOURCE: abs
Disconnect the positive lead on battery wait about 30 seconds and reconnect. Take it out somewhere where you can floor it and go through the gears a couple times. This will clear error lights and establish a new acceration curve. If the error comes back then start looking for loose connections or alignment problem for abs stuff.
SOURCE: idle keeps dropping below 500 in 2004 gmc canyon
either have the throttle body serviced or replace the IAC Motor. Idle Air Control Motor.
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SOURCE: heater fan only works on the high position?
There is a plug up under the glove box that loosens and you need to snug it up.
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