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Where is blower motor resistor located? - 2004 Mercury Grand Marquis

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It should be under the hood, behind the engine and inside the ductwork for the fan. It is connected to the fan under the hood. Just follow the wires from the fan and you will arrive at the Resistor connector. There are 2 bolts and 1 connector attached to it.

The unit is small, about the size of a pack of cigarettes and 90% is hidden inside the Ducts. Sometimes you have to undo the rear heater hose connection to the block. It is not apparant until you start pulling it out of the ductwork, but you will need the room. I did on my 2002 model and I can't say they improved the location in 2004.

The nice thing about replacing this part is you only need to hook up the wire connector to the new part to make it work. Then if the new part does not help, you can just leave the old part in place and try something else.

There is a test sequence for the Climate Control brain. You can do a Search in IE for the info. The codes are different from the engine Codes and you would need the list before you learned how to get it to diagnose.

If your blower just stopped for no reason and it does not work on any setting, odds are you are after the correct part already.

Posted on Sep 29, 2010

Testimonial: "It's on the firewall hidden by the heater hoses. Tapping on it temporarily got the fam working. Thanks."

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2005 mustang blower motor resistor location


The blower motor resistor can be accessed from below the RH side of the instrument panel.
  1. Disconnect the blower motor resistor electrical connector.
  1. Remove the 2 blower motor resistor screws.
  1. Remove the blower motor resistor.
  1. To install, reverse the removal procedure.

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Need to locate the motor blower resistor for my 1999 mercury mountaineer, it has dual air, the resistor for the back is fine but the one in the front is bad and i cannot locate it. Please help.


If you have a manual system, you have a resistor. If electronic, you have a blower motor speed controller. Please rate if this helps.

here is info:

Control System Outputs-Manual A/C
Blower Motor Switch Resistor
The heater blower motor switch resistor has the following features:
  • The assembly is located on the evaporator housing in the engine compartment.
  • Three resistance elements are mounted on the resistor board to provide four blower motor speeds.
  • Depending on the heater blower motor switch position, series resistance is added or bypassed in the blower motor circuit to decrease or increase blower motor speed.
  • An overheating protective device (thermal limiter) will open the resistor coil circuit when the temperature reaches 121°C (250°F) interrupting the blower motor operation in all speeds except HI.
  • The thermal limiter cannot be reset and is not serviceable.
Control System Outputs-EATC
Blower Motor Speed Control
The blower speed control is located on the evaporator housing in the engine compartment.
  • The function of the blower motor speed control is to convert low power signals from the electronic automatic temperature control module to a high current, variable ground feed for the blower motor (18527).
  • The blower motor speed is infinitely variable and is controlled by the electronic automatic temperature control module software.
  • A delay function provides a gradual increase or decrease in blower motor speed under all conditions.

Jan 10, 2011 | 1999 Mercury Mountaineer

3 Answers

How doi locate the resistor for a blower motor on a 1997 gmc sierra 1500


Hi!!
Check under dash, passenger side, if necessary, remove cover to access Blower Housing Assy., the harness has two terminals, one for the Blower Motor and one for the Blower Motor RESISTOR which is fastened by two 7 or 8 mm. screws to the Housing.
Here is a picture of the Blower Housing Assy. showing the Resistor.
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Good Day!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

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I need to locate my blower motor resistor on my 1999 S-10. do u know where it is located on my s-10?


The resistor is located under the hood on the passenger side. At the back of the engine compartment you need to locate the airbox it can be identified by a circular piece that's right beside the fender on the firewall (this is your blower motor) to the right if it (looking from the front of the truck) about 4 -6" you will see a wire plug. Unplug this connector and locate the four screws that attach it to the air box. Remove these screws and pull the resistor from the housing.

Hope helps (remember to rate this answer).

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Blower motor resistor, where is it located/


It will be up under the dash on the passenger side near the blower motor. It will have 5 or six wires in its connector

Nov 10, 2010 | 2000 Jeep Grand Cherokee

1 Answer

1999 grand marquis were the blower motor resistor is located


this is for manual heater system. If you have electronic (digital display) you don't have one. Instead you have a blower motor speed controller.

here is info

Control System Outputs—Manual A/C
Blower Motor Switch Resistor
The heater blower motor switch resistor has the following features:
  • The assembly is located in the engine compartment on the evaporator housing toward the center of the vehicle.
  • Three resistor elements are mounted on the resistor board to provide four blower motor speeds.
  • Depending on the heater blower motor switch position, series resistance is added or bypassed in the A/C blower motor circuit to decrease or increase A/C blower motor speed.
  • An overheating protective device (thermal limiter) will open the resistor coil when the temperature reaches 121°C (250°F) interrupting the blower motor operation in all speeds except HI.
  • The thermal limiter cannot be reset and is not serviceable.

Dec 12, 2009 | 1999 Mercury Villager

1 Answer

2005 Kia Sorento only blows hot and cold air on high. Is it a blower motor resistor and if it is where is it located?


If the blower moter only works on hi speed it is the blower motor resistor that is bad. The blower motor resistor is located under the passenger side of the dash next to the blower motor. It is not necessary to remove the blower motor to change the resistor.

May 12, 2009 | 2005 Kia Sorento

1 Answer

Blower motor fuse is located 99 mercury cougar


SECTION 412-04: Control Components 1999 Cougar Workshop Manual REMOVAL AND INSTALLATION Blower Motor Resistor Removal
  1. Remove the upper footwell trim panel (passenger side).
    • Remove the pushpins.
  1. Disconnect the blower motor resistor electrical connector.
  1. Remove the blower motor resistor.
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May 06, 2009 | 1999 Mercury Cougar

1 Answer

Where is the heater blower motor resistor located


if you locate the blower motor the rester is the wire that atachec to blower motor fallow wire till you find a circuit bord this is ur resistor

Dec 06, 2008 | 1999 Mercury Villager

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