Acura Integra All Integra Except ITR

No power to HVAC

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Old Dec 25, 2011 | 07:35 AM
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Default No power to HVAC

I've search, not much to my related issue. Well it appears that i dont have power to the blower motor so i can get some heat. I checked the fuses didnt seem like that worked. Replaced blown fuse and nothing. Im mostly stumped to where exactly the fuse is located..

Well the wiring has been tucked into the fenderwell and into the passenger side floor near the ecu. id like to know where exactly where the fuse is located so i can assure myself that i completed that task. I know theres a bigger one than the fuse links that we all now. I just bought the car really on the cheap. Just trying to get some minor bugs out of it so i can drive it.
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Old Dec 25, 2011 | 07:50 AM
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Default Re: No power to HVAC

I missed the part where you tell us what kind of car you have... (make/model/year)

Here is a bit of info posted earlier on a related subject - which has what you need if you have something like a '96 GSR:

https://honda-tech.com/forums/showth...lower+resistor

Try fuse 13 in the under-dash fuse panel.

Mark
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Old Dec 25, 2011 | 10:16 AM
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Default Re: No power to HVAC

Without a MM&Y of car all we can do is guess.

Assuming it is a G3, it will be, [main fuse] fuse 37-40A, [hot at all times] in engine bay fuse box, [or wherever the engine bay fuse box is now.

There is also, [relay control fuse] fuse 13-7.5A, [hot in run] in under dash fuse box.

If you have not already, test for power at the blower motor 2pin plug, [blue/white], it should be "hot" when ign. switch is on, [run position], if it is, the problem obviously is not power but the ground, [supplied by speed select switch through the blower resistor], to confirm use a jumper lead to supply a ground directly to the blower motor, [blue/black] if blower works, [full speed] the problem is most likely the blower resistor less likely the speed select switch or wiring/connections.

If there is no power at the blower motor then it is either one of the two fuses, possibly the relay, or because of the tuck, a wiring or connection problem.94
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Old Dec 25, 2011 | 12:54 PM
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Default Re: No power to HVAC

its a 94 gsr
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Old Dec 26, 2011 | 12:28 PM
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Default Re: No power to HVAC

Originally Posted by subie22
its a 94 gsr
Then it is a G3, [generation three Integra].

Have you checked/tried any of my suggestions? 94
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Old Dec 26, 2011 | 03:25 PM
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Default Re: No power to HVAC

Do you have a voltmeter, and know how to use it to trace the power?
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Old Dec 26, 2011 | 07:59 PM
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Default Re: No power to HVAC

Yea i just thought there maybe a known issue with 3rd gen integras. Yea i have one its in my evo thats in storage. I just gotta make sure its getting 12 volts im assuming. If it doesnt either the blower motor is gone. Or the fuse. I thought it was a fuse, not one of the big plastic looking ones. Just hope i dont have a short to ground. That may suck considering i didnt do the wire tuck.
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Old Dec 26, 2011 | 08:47 PM
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Default Re: No power to HVAC

Not terribly common AFIK.. but the components other than fuses that are more likely to fail are the motor, switch, and resistor.. figuring out which shouldn't take too long with a voltmeter.
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Old Dec 27, 2011 | 12:33 PM
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Default Re: No power to HVAC

The most common problem with blowers on G3s is the fuse(s), resistor, relay then the blower motor, in that order, because you have a wire tuck, a wiring or connection problem moves to the top as a possible problem.

The first thing you need to do is test for power at the blower motor, until then we are just guessing, [pissing into the wind], you do not need a meter, all you need is a 12V test light. 94
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