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Wires under the dash not connected no heater,blower,window don't work ect.

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My first qiestion is were the accesories working prior to these wires becoming disconected? If so is it a connector that is disconected or just wires hanging under your dash?

Posted on Oct 13, 2013


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Posted on Jan 02, 2017

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SOURCE: Heater Fan/Blower does not work.

what you need is a blower motor resistot

Posted on Dec 04, 2008

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SOURCE: 2001 Chrysler T&C replacing the front heater blower fan

I just replaced in 2001 dodge grand caravan so I'm assuming they're the same. I own a 2001 Chrylser T&C too. Open the glove box, usually you push in sides of box so it will drop down. You can see how to pop it loose and remove it altogether. The blower motor can be kicked w/ your right foot when you are seated in the passenger side. It has a plastic cover over it. Before you remove anything you can see the plug to blower once the glove box door is removed and you need to unplug the old one and plug in your used one to make sure it works. Mine was used too. I held it in my hand and turned the fan on but dont hold to the rotating wheel. There is a small motor on the tip bottom of the blower cover (smaller than a small jewelry box). It rotates a door inside, between the cover and blower. Remove about 2 screw to remove it first. Then You can remove 4 or 5 screws to remove cover. (my cover wouldnt come off and I thought I missed a screw in the back I couldnt find. I kept pulling and eventually the plastic cracked and released but appeared to be just stuck.) Be careful removing the cover b/c you might break that rotating door! Once removed you can see bottom of blower. Only about 4 screws hold it on. You can see where the plug runs thru rubber gasket and into the resistor that you plugged the replacement into earlier. Its time consuming to maneauver the blower into its spot' especially around that hanging rotating door. My resistor was bad and had melted the plug to it. I ordered it from auto zone for $25. Only 2 screws hold it in. The replacement looks nothing like the old one I removed. But it worked! Hint---to the left of the blower is a hidden door facing down that slids open and a filter slides down out of. It filters the a/c air and is to be replaced about 15k miles. Keeps it from being musky air. Do all this while your standing on your head in the floor board.
I'm a mom (loan officer) and I figured it out, so I know you can.

Posted on Apr 22, 2009

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SOURCE: Heater Blower won't work

Find the blower motor on the passenger side just above where the passengers feet would be. You may need to remove a panel (fairly easy). You will see a round metal housing about 4" in diameter. Turn on the ignition key and blower motor. Then tap the housing with a small hammer or a screwdriver. If the blower comes on.....replace the motor. If not, find the wires leading to that motor, undo the connector and check for power and ground in them.(You did check fuses first...right?)

Posted on Oct 29, 2009

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No sign of vehicle here but would say look at the blower motor resistor as the culprit. Will likely be under dash in glovebox area . When no make, model shown in posting, I usually advise following wiring from blower motor back to dash controls and you'll usually find it not far from blower motor connection.

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Before removing the heater switch on this 2006 citroen hdi I would first have the blower motor checked and the most common reason for this and other blower problems would be the blower resistor.

Your blower works on and off at times, first locate the blower motor and the resistor. the blower motor is located on the heater box, look under the pass/side of the dash, you may have to remove under dash cover to see blower.
When you have located the blower now look to the side on the heater box, there you will see a connector plug, it plugs into a connection on the heater box, this will be the resistor, the resistor slides into heater box and the end of it bolts to box to hold it in place and then the connector plugs into it, if you can not locate it then follow wires that plug into blower , follow wires back they will lead you to resistor,
next time blower does not work wiggle connector to resistor and see if blower turns on, if it does then resistor is the problem. also unplug resistor plug at resistor and check for any burning of connectors at plug and inside resistor.

I would bet its a bad resistor or the plug is brunt due to high draw from bad connections, if plug has burn damage to connectors then replace the plug along with resistor.

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blinkers sounds like the flasher unit is not working. It's located under dash. Also check for burnt out bulbs.
Rear defrost, or rear defogger?: Your defogger for the rear window would run off a relay, probably located in the fuse panel of your car. Often, the connections at the rear window get broke or disconnected.
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this could be a bad blower motor can go to a wrecking yard and get one probably around $5.its located in the air duct under the dash or it maybe under the hood its been should have about 5 wires or so and is usually held in with 2 small don`t say but is the fuse good this can be checked out with a test light.the only other thing it could be is a blower motor switch on the dash.there is very little problem with the wiring for this system.

Oct 27, 2011 | 1995 Ford Thunderbird

2 Answers

The blower on my heater does not always work sometimes it comes on sometimes it does not. If it does not and i go over a bump it will come on. Someone told me it might be the resistor of so where is the...

The blower motor will be on the passenger side up under the dash,held in place with(usually) three machine screws .The resistor block will be close to this location, a series of 5 or 6 wires in a row with a screw at each end. The block itself is about the size of a credit card a you will be able to hold the block up to the light and give it a visual inspection.If you have a meter or can borrow one check each run with the continuity option.I must say that this is a good place to start but I would also be looking for a poor connection as I am working away. wiggle the wiring harness and see if you can get the fan to cut in and out.Good luck and watch your back,its tight under there.

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sound like a lose wire.take dash back out and check the wires that goes to dash.wires could have move out of place when you removed the dash.

May 26, 2009 | 1997 Ford Mustang Cobra

1 Answer

Can't locate the resistor blower under the dash on the passenger side to replace it. can you help?


(a) Disconnect the wire harness clamps.
(b) Disconnect the connectors.
(c) Remove the 2 bolts and engine (and ECT) ECU.
3. Two way flow heater models only:
REMOVE AIR DUCT (Motor cover)
(a) Disconnect the control link.
(b) Disconnect the connector clamps.
(c) Remove the screw.
(d) Release the claw and remove the air duct.
(a) Disconnect the connector.
(b) Remove the 2 screws and blower resistor.
Tester connection Condition Specified condition
1 − 3 Constant Approx. 0.4 ω
1 − 2 Constant Approx. 1.5 ω
1 − 4 Constant Approx. 2.8 ω
If resistance is not as specified, replace the blower resistor.
7. Two way flow heater models only:

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1 Answer

A/c heater fan no blow

sounds to me like the blower motor resistor, and if I'm not mistaken the resistor and the blower motor are located under the dash on the passengers side. the resistor should have a wiring connection and 2 screws attaching it to the blower case. The a/c and heater blower will not work if the resistor goes out. hope this helps you out a little. Best wishes.

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