Blower and AC not working
#1
Blower and AC not working
I'm at a loss here. My heat or AC isn't working. Checked the fuses behind the glove box, they're fine. I've heard most accounts say that if the resistor is fried it usually only works with one speed. Mine isn't at all. The resistor was also working with my multimeter 1.2 ohms I think. It did have a little corrosion but nothing major. My relay is clicking when I flip the switch so I don't see it being a problem. The weird part is my AC button doesn't light up when pushed in either. Not sure if it's just coincidence in that regard. That's what is kind of throwing me off. Otherwise I would just assume the motor itself is fried. I'm in the process of testing that but that one screw in the back is a PITA to get out. I'm also disassembling the dash to see if I can see anything wrong with the switch itself. Again though, the relay was clicking so I would think it wouldn't be that.
Is there anything else it could be? Something I'm missing somewhere.
Is there anything else it could be? Something I'm missing somewhere.
#2
Registered User
iTrader: (1)
Quite simple to unplug the blower motor and test with a 12vdc power source .
Then if it is good you don`t need to pull it out .
Have you tested the switch making sure that is working like it should
Does not hurt to change the resistor while your working on it
It might help to know just what your working on
Then if it is good you don`t need to pull it out .
Have you tested the switch making sure that is working like it should
Does not hurt to change the resistor while your working on it
It might help to know just what your working on
#3
Quite simple to unplug the blower motor and test with a 12vdc power source .
Then if it is good you don`t need to pull it out .
Have you tested the switch making sure that is working like it should
Does not hurt to change the resistor while your working on it
It might help to know just what your working on
Then if it is good you don`t need to pull it out .
Have you tested the switch making sure that is working like it should
Does not hurt to change the resistor while your working on it
It might help to know just what your working on
#4
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Do it the easy way. Pull out the heater relay, and test it. Then test that it has 12v on the correct terminals in the socket. Check for continuity OUT of the socket. http://web.archive.org/web/201102052.../2aircondi.pdf
Your relay could "click" but not close the terminals. You're not going to hear the electrons. If the relay isn't passing 12v, the A/C switch is not going to light.
#5
Wow! The rest of us are using a $6 multimeter to diagnose electrical problems, when all we really needed to do was listen for a click!
Do it the easy way. Pull out the heater relay, and test it. Then test that it has 12v on the correct terminals in the socket. Check for continuity OUT of the socket. http://web.archive.org/web/201102052.../2aircondi.pdf
Your relay could "click" but not close the terminals. You're not going to hear the electrons. If the relay isn't passing 12v, the A/C switch is not going to light.
Do it the easy way. Pull out the heater relay, and test it. Then test that it has 12v on the correct terminals in the socket. Check for continuity OUT of the socket. http://web.archive.org/web/201102052.../2aircondi.pdf
Your relay could "click" but not close the terminals. You're not going to hear the electrons. If the relay isn't passing 12v, the A/C switch is not going to light.
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