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06-18-2005, 10:26 AM | #1 |
Scooby Specialist
Member#: 7555
Join Date: Jun 2001
Chapter/Region:
South East
Location: Charlotte NC
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A/C Electrical Experts, help with fan speed!
Guys, my A/C only works on the fan selector switch 4. Well, the A/C compressor will operate when switched to selector 1, 2, or 3 but the fan will ONLY work on selector 4. I've been told to order either a resistor for the fan or the fan selector switch.
So, what is the likely culprit? The parts are similarly priced (~ $40 each) so it's a 50/50 shot ordering either one without knowing what the problem is exactly. Anybody seen this issue before?
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06-18-2005, 10:43 AM | #2 |
Trust no one
Moderator Member#: 11170
Join Date: Oct 2001
Chapter/Region:
Tri-State
Location: NYC
Vehicle:02 RAV4 MT 15 WRX/11 CRZ |
Moved to the maintenance forum.
This is the typical symptom of a bad blower resistor. The resistor is used for the lower fan speeds and is bypassed on the #4/high speed setting. You can remove the resistor to inspect it and test it with an ohmeter, it's located in the lower portion of the fan housing. |
06-18-2005, 11:18 AM | #3 |
Scooby Specialist
Member#: 7555
Join Date: Jun 2001
Chapter/Region:
South East
Location: Charlotte NC
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Thank you! Where is the fan housing exactly?
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06-18-2005, 11:23 AM | #4 |
Trust no one
Moderator Member#: 11170
Join Date: Oct 2001
Chapter/Region:
Tri-State
Location: NYC
Vehicle:02 RAV4 MT 15 WRX/11 CRZ |
Under the passenger side dash, behind the glovebox. Remove the glovebox to allow full access to the area, you'll see the fan housing and duct. There are two electrical connectors underneath, the one on the right is for the fan itself and the one to the left is the resistor. Unplug the resistor and take the screws out that hold it in, you can then remove it for testing/replacement.
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06-18-2005, 11:44 AM | #5 |
Scooby Specialist
Member#: 7555
Join Date: Jun 2001
Chapter/Region:
South East
Location: Charlotte NC
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Cool man. I think I'm just going to order it without testing. I think you hit the head on the nail already.
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06-18-2005, 12:07 PM | #6 |
Trust no one
Moderator Member#: 11170
Join Date: Oct 2001
Chapter/Region:
Tri-State
Location: NYC
Vehicle:02 RAV4 MT 15 WRX/11 CRZ |
Um, that would be "nail on the head"-
Makes sense, it's not an expensive part and why not have the new one on hand so you can take it apart just once. |
07-01-2006, 10:02 PM | #7 |
Scooby Newbie
Member#: 119045
Join Date: Jul 2006
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useful fix--any bigger issues?
I just replaced my resistor, and now it's working fine. Thanks!
Could there be larger electrical problems? I've had my dash light go, my glove box led, my clock,--I think that's it. Thanks again! |
07-02-2006, 12:08 AM | #8 |
Scooby Specialist
Member#: 3894
Join Date: Jan 2001
Chapter/Region:
MWSOC
Location: Royal Oak, MI
Vehicle:2002 WRX Wagon Battlewagon Black |
That seems a bit odd. Do you have a voltmeter? I would check to see if you are getting abnormal spikes, or if your voltage is constantly too high. Your alternator could be going nutty.
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