Question about 2005 GMC Canyon

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2004 canyon no voltage at heater resistor

Heater not working at all no voltage at heater resistor with key on or off

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  • jeffrey knatz Jan 18, 2014

    all fuses and relays are good

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The resistor provides the ground circuit for the blower motor. So you would need to have power at the blower motor first. Grounding the motor or resistor should make the motor run.
The blower motor gets power from a 30amp fuse which gets power from a relay.

Posted on Jan 18, 2014

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  • 28 Answers

SOURCE: Need to program a new Key Pod for 2004 GMC Canyon

the only way to reprogram a key fob is to go to the dealer

Posted on Feb 02, 2009

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1 Answer

Heater fan only works on high


This is caused by a defective blower motor speed control resistor, the resisitor is located next to the blower motor.

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I don't know much about Toyota's but, usually when the fan only works on high it's because the blower motor resistor is bad. When you have the fan on high it puts full battery voltage to the motor. When you have the switch set in any other position, the battery voltage is routed through the resistor. When that happens the voltage to motor is redeuced through a series of resistors giving you the different speeds. The resistor is usually in the duct work fairly close to the blower motor. Good Luck!

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There is a plug up under the glove box that loosens and you need to snug it up.

Dec 09, 2009 | 2004 GMC Canyon

1 Answer

Heat/ac blower motor works on high. intermittent on other speeds.


Check the blower resistor pack - usually located in the heater air ducting in the blower fan airflow. Check for loose connections and open circuit resistors on the unit.
If speed 4 works always, its unlikely to be the blower motor ground connection.

Aug 10, 2009 | 2004 GMC Canyon

1 Answer

Need to program a new Key Pod for 2004 GMC Canyon


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Jan 12, 2009 | 2004 GMC Canyon

1 Answer

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

Dec 12, 2008 | 2004 GMC Canyon

2 Answers

Fan blower motor


The Canyon has an inherint problem with the Fan Power cable being loose. When I say loose...I'm saying that you need to adjust the wires and then take a zip strip to tighten it up.

Passenger side under the dask are 2 cable hook ups. the one on the farthest right (Only 2 wires going to the plug) is the fan power cable. Jiggle it while the fan is on position number3 so you can hear when it comes on!!!

Nov 18, 2008 | 2004 GMC Canyon

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