Question about 1994 Cadillac DeVille

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1994 sedan deville where is blower motor resistor . The motor will run when jumpered and there is voltage at red. There are 3 wires on plug but cant find resister only an empty space on firewall near blower motor which looks like it could be the location for resistor on some models

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6ya6ya
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Posted on Jan 02, 2017

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motorhead427
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SOURCE: 1999 cadillac deville blower dont

red black and gray are just half the connections. Red is positive 12 volts coming from fuse of circuit breaker. The black wire is either the ground or the main hot wire going to the blower motor (3 pin connection only), and the gray wire (if is is small in size) is a variable voltage coming from the body control module requesting speed for the blower motor.The blower control module varies voltage on the main wire going to the blower motor, supposedly in accordance with the requested voltage from the body control module. Usually if all fuses are okay and present on the apprpriate wire of the blower control module, the a blower motor that will not run or stays running after the key is turned off is the fault of the blower control module. If the blower control module has failed the the cause must be determined (over amping blower motor) or else new blower control module may fail when powered up.Usually blower control modules have more than three wires. Usual connections are: B+ (battery voltage) GND (chassis or engine ground), two large wires going directly to blower motor (can be any color, but are usually 10 guage in size), and an optional wire that reports voltage level back to the body control module.

Posted on May 29, 2009

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cadillac02
  • 318 Answers

SOURCE: wher is the blower moter located at to a 2002

The blower motor is located under the glove box. It is a very difficult procedure to replace. The blower motor has six 7/32 size screws, two of which are hidden and one, the closest to the firewall, will require a 1/4" drive, and swivel. I removed the glove box in order to put the replacement blower motor in. It takes a little extra time but allows more room and saves your back. Get a diagram off the internet of how to remove these things. Plug in the new blower motor and test it before you just install it! My biggest fear installing the new blower motor was that it took a lot of force to get it back in on an angle. Almost thought that I was going to crack or damage the fins on the cage. It takes force but just be careful.

Posted on Jan 10, 2011

  • 4 Answers

SOURCE: how to reset oil life

To reset the engine oil life, do this: push info button till oil life comes up, then push inforeset, to reset to 100%


To reset the transaxle oil life do this: early models; press off and rear defrog button simultaneously.
later models; press info till the oil message shows up then, press and hold info reset.


Some models have both, but my 94 Deville only monitors the transaxle

Posted on Oct 07, 2008

johnny5846
  • 379 Answers

SOURCE: 1992 cadillac deville - hvac blower motor does not shut off.

replace the relay , when a relay sticks like that , a good test is to slap it with something like the handle of a screw driver , see if it un-sticks , its not a fix , just a test . cheers'

Posted on Jan 13, 2009

  • 59 Answers

SOURCE: No heat in 91 Cadillac Sedan Deville

I would beleive more that you have build up in the heater core. Try taking loose the heater hoses from the block and use a water hose to spray into one of the hoses letting it come out the other hose then switch hoses with the water hose and keep reverseing for 2/3 times each hose. sounds like stop leak may have been used in a prior time and may be blocking water flow.

Good luck,
Lugnut61

Posted on Feb 08, 2009

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Location of heater relay on 2003 ford focus.


There is no relay, according to my info. At the blower motor, green wire is voltage, fuse protected, goes hot with key on. Black wire is ground. The blower speed control switch is part of ground circuit. There are resistors for the lower speeds. Hi speed doesn't use a resistor. If you have good voltage and ground at blower motor and no blower action, suspect the blower motor. Any motor that uses brushes, sometimes you can tap on suspect motor, and it will run intermittently. Sign of bad brushes.
You may be able to use jumper wires to blower motor connector for voltage and ground, from the battery, just to see if blower motor will run? If it won't run, suspect blower motor. If you use jumpers, use an inline fuse, just in case.

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1998 cadillac sedan Deville Blower Motor hesitates to function when using heat


FIRST CHECK FUSE,MAY HAVE POPPED OUT A LITTLE AND NOT MAKING GOOD CONTACT OR THE BLOWER MOTOR RESISTOR IS BAD,LOCATED NEXT TO BLOWER MOTOR,EASY TO REMOVE,2 SCREWS HOLD IT ON AND IT'S PRICEY FOR YOURS.

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Blower fan for the AC on 1994 Van C20 stopped working, where is the fuse or what can I check


the fuses are under the dash on the drivers side.if the fuses are good then the next thing to check is the blower motor resistor under the hood by the blower motor.there should be about 4 wires that are in the plug maybe 5.the resistor is about 3" by 1.5" in size and is held in the air box by 2 bolts.with the fan turned on check the large wire at the blower resistor,it should have battery voltage.if it does then take out the resistor assembly,you will see 3-4 resistors that look like wound up wires of different sizes and lengths.there is the possibilty that it could be the fan control switch on the control head on the dash.

Mar 15, 2011 | 1994 Chevrolet G20

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Blower not working on a 1994 Cadillac


Go under the hood and test the positive wire that goes into the blower motor, it is a single wire with a sort of insuklated plug connector that locks onto a spade contact, check with a 12v test light if voltage replace the blower motor..very common, should be approx. 6 small 5/16 or 1/4 " bolts holding it in around its flange up against the fire wall on the passenger side top.

Jun 14, 2010 | 1994 Cadillac DeVille

1 Answer

2006 chevrolet silverado all fan switch works but 5th which is high?


Check blower motor resistor sit next to blower blower housing, will have a seven wire plug going into it, and two wire's coming out red & black that go to blower motor, remove resistor and check voltage at little resistor on back of blower resistor, if no voltage going across while you have it on high, bad resistor. Hope this helped.

Nov 25, 2009 | 2006 Chevrolet Silverado 1500 2WD

1 Answer

My heat doesnt blow hot air or no air at all and my left turn signal blins very slow and my wipers work but when turned off they keep going until car is off and door is opened please help i have kids and...


HAVE BATTERY VOLTAGE CHECKED.MAKE SURE BATTERY IS FULLY CHARGED IT SHOULD BE 12.5 VOLTS.IF YOU HAVE DIM TURN SIGNAL LIGHTS.EITHER YOU HAVE WRONG BULBS OR POOR GROUND ALSO THE WEAK BATTERY OR UNDERCHARGING PROBLEMS HAVE ALTERNATOR CHECK OUT. FOR THE BLOWER MOTOR.CHECK FUSE AND RELAY. IF BOTH GOOD YOU HAVE A FAULTY AC + HEATER CONTROL SWITCH.OR THE BLOWER MOTOR IS FAULTY.REMOVE BLOWER MOTOR HOT WIRE IT USING A JUMPER WIRE TO BATTERY.IF IT RUN YOU HAVE SWITCH OR WIRES TO SWITCH PROBLEMS. IF BLOWER MOTOR DONT RUN.REPLACE IT AND BLOWER MOTOR RESISTOR.NOW IF WIPERS KEEP WORKING WHEN YOU TURN THEM OFF.YOU HAVE A FAULTY SWITCH OR DEFECTIVE LIMIT SWITCH IN THE MOTOR.

Nov 12, 2009 | 1994 Cadillac DeVille

1 Answer

Yes i have juice to the blower motor, but it dont blow all fuses are good, freon is good


Cadillac 1999 DeVille
If the front blower motor is not running with battery level power to it, you may have bad blower resistors which controls the speed of the motor.. Unfortunately the resistors are built-in the motor. You may have to replace the motor. If you remove the motor, you can recheck it by direct wiring power to it. OR you may have loose wires.
Also check the Heater and A/C Programmer module.

Here's some info I found from another posting.

Red is positive 12 volts coming from fuse of circuit breaker. The black wire is either the ground or the main hot wire going to the blower motor (3 pin connection only), and the gray wire (if is is small in size) is a variable voltage coming from the body control module requesting speed for the blower motor.The blower control module varies voltage on the main wire going to the blower motor, supposedly in accordance with the requested voltage from the body control module. Usually if all fuses are okay and present on the apprpriate wire of the blower control module, the a blower motor that will not run or stays running after the key is turned off is the fault of the blower control module. If the blower control module has failed the the cause must be determined (over amping blower motor) or else new blower control module may fail when powered up.Usually blower control modules have more than three wires. Usual connections are: B+ (battery voltage) GND (chassis or engine ground), two large wires going directly to blower motor (can be any color, but are usually 10 guage in size), and an optional wire that reports voltage level back to the body control module.

Jun 24, 2009 | 1999 Cadillac DeVille

1 Answer

Blower motor has no power 1994 cadillac deville


If there is only high speed fan, then replace the resistor assembly in the heater plenum. If there is no fan at all, then check the ground to the blower- the wire fails down in the fender well. Just run a new ground from a convenient spot to the motor's plug harness. Or it could just be a bad blower motor.

May 29, 2009 | 1994 Cadillac DeVille

2 Answers

1999 cadillac deville blower dont operate. What should the voltage be at the red wire and the gray wire or the black wire ? Iam assuming the red wire should be 12 volts, the gray wire should be variable...


red black and gray are just half the connections. Red is positive 12 volts coming from fuse of circuit breaker. The black wire is either the ground or the main hot wire going to the blower motor (3 pin connection only), and the gray wire (if is is small in size) is a variable voltage coming from the body control module requesting speed for the blower motor.The blower control module varies voltage on the main wire going to the blower motor, supposedly in accordance with the requested voltage from the body control module. Usually if all fuses are okay and present on the apprpriate wire of the blower control module, the a blower motor that will not run or stays running after the key is turned off is the fault of the blower control module. If the blower control module has failed the the cause must be determined (over amping blower motor) or else new blower control module may fail when powered up.Usually blower control modules have more than three wires. Usual connections are: B+ (battery voltage) GND (chassis or engine ground), two large wires going directly to blower motor (can be any color, but are usually 10 guage in size), and an optional wire that reports voltage level back to the body control module.

Jan 11, 2009 | 1999 Cadillac DeVille

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