Question about 2003 Saturn ION

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Fan switch only works on speed 4 and not on 1,2, or 3. How do I replace the fan switch?

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First find the blower resistor and check the voltage there its near the blower motor, look for a 5 wire harness

Posted on Aug 25, 2010

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1 Answer

Air condition and heat won't work


Check to see if you are getting voltage to the blower motor if you are the motor is bad if not check the fan speed switch. 1 2 3 or low medium high if you get voltage going to the switch but not from replace the switch if you have voltage from switch check the blower motor resistor the although with the blower resistor you commonly have a high fan speed in the max setting and the lower speed settings don't work wich would make you think 1 2 3 are not working but 4 is. That is why it is best to check all parts to make sure the part you do replace needed to be replaced

Oct 15, 2012 | 2000 Ford Focus

1 Answer

A/c blower stop working all speeds, check have power, ground out speed sensor and fan comes on, replaced speed sensor, now fan just works on high when wiggling fan switch, I replaced fan switch, now...


Depending on the year and model, you should have a resistor that controls fan speed. Not sure what a speed sensor is.
On most import cars, the speed is controlled by the ground circuit. If you have power and the fan will run if you ground it, check the fan switch again and the resistor. Then look at the ground for the switch.

Jul 17, 2012 | Hyundai Santa Fe Cars & Trucks

2 Answers

Fan only works on speed 4


It is probably the resistor pack on the heater case. This little device controls fan speeds. Yours must be broke. Just pull off the 4 or 5 wire electrical connector, unscrew the 2 fasteners, and pull the unit out for replacement. They are not expensive, but knowing Ford, it may not be as cheap as it should. All they are is a little pack with 3 different coiled wires. Each one will cause a different fan speed by restricting current flow to the motor. Location should be near the fan motor.

Jul 09, 2012 | 2003 Ford Escape

1 Answer

Ac only works on low


correct my did the same thing replace the switch

May 29, 2012 | 2007 Mitsubishi Eclipse SE

1 Answer

A/C has quit working on fan speeds 2 thru 4.....it will only work on speed 1 but the fan itself still works on all speeds...it just seems to kick the a/c off on speeds 2 thru 4 and blow hot air ....2001...


You probably have a bad fan switch. I had the same issue and had it diagnosed and replaced. It fixed the problem, but it seems to be coming back less than 2 years later.

Jul 08, 2010 | 2001 Mazda Protege

1 Answer

Can't find cooling fan resistor which i was told was located on the fan body. Low fan does not work...have replaced coolant switch at bottom of radiator. High fan comes on when heat gauge is about 3/4....


hi craig cooling fans on those cars have two or three connection wires. two wires means one speed. three wires means two speeds. they work with extra poles in the motor, not with a resistance. when you have a motor with 3 conn. wires and only one speeed, you have to replace the motor. most types haves only one speed. extra speed fan motors where optional for extra heavy duty or high temps. if you have more questions let me know. greetings.

Feb 22, 2010 | 1987 Volkswagen Cabriolet

1 Answer

Fan control only works on speed 4


The fan may have to be replaced. Do check the back of your control switch to make sure all vacuum hoses are connected.

Aug 02, 2009 | 2004 GMC Canyon

1 Answer

No low speed heater fan, only high speed works


BLOWER MOTOR RESISTOR IS BAD . HI SPEED IS DIRECT POWER BUT ALL OTHERS GO THROUGH RESISTOR

Jan 21, 2009 | 1984 Volkswagen Rabbit

1 Answer

Vent fan only works when set to 4


Hi.....
On your Vehicle the problem for the FAN speed is NOT the FAN switch.
99.9 % of this problem on cars is the BLOWER MOTOR RESISTOR.
The blower motor resistor give the speed to the Fan.
But on High speed the switch make a By pass of the switch using a Relay for the high speed.
The Blower motor resistor, is located Beside of the Blower motor On the passanger compartment.

If you replace the blower motor resistor you have 99.9% of this will solve your problem.

I'm a Mechanic.

I hope this help on your problem.
Thank you for use fixya...

Oct 09, 2008 | 2003 Nissan Altima

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