Question about 1999 Volkswagen Passat

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How do I reach the blower speed control resistor?

It seems the there is something wrong with the resistor controlling the blower speed. How do I get to it?

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Under the dash on the passenger side near the fan... it attaches to the duct work... wiring connector goes to it and usually two screws hold it in.
Robert

Posted on Jan 17, 2009

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The fan speed switch for the heater/ac will not work on the two lowest speeds, only med to high. Went to a salvage yard and got a replacement one, it does the same thing. Apparently there is something...


You need to get the blower motor resistor replaced.This is your problem.It is located by the blower motor.There will be a connector from the blower to the resistor.The resistor controls the fan speeds when you turn the knob on the control head.The blower motor is on the passengers side under the dash.Hope this helps.Good luck.

Mar 05, 2011 | 2003 Buick Century

1 Answer

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

1 Answer

2001 Chrysler Town & Country air conditioner/heater blows on high only. We have replaced the front blower relay and it still doesn't work. The back blower is the same.


THE REASON THE BLOWER ONLY WORKA ON HIGH IS BECAUSE OF SOMETHING CALLED THE BLOWER MOTOR RESISTOR. THIS IS A BLOCK WITH ABOUT THREE DIFFERENT RESISTORS ON IT WHICH CONTROL THE AMOUNT OF VOLTAGE THAT REACHES THE BLOWER MOTOR THUS GIVING YOU YOUR DIFFERENT SPEEDS.
THIS BLOCK IS USUALLY LOACATED BEHIND THE GLOVE BOX AND IS BOLTED TO THE HEATER HOUSING.

Jun 09, 2010 | 2001 Chrysler Town & Country

2 Answers

Blend door for front temp control is stuck in the 'cold' position this winter. Is there a way to manually move and fix the door to get some heat?


you have to replace the blend (heat/cold) door motor, you can try to remove motor and turn door and try to jam something in door handle slot ,that the part that the motor turns,hope this helps.

Dec 26, 2009 | 2001 Ford Windstar

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

Front climate control blower only works on high speed.


Replace your blower motor resistor
Resistor located under dash on passenger side in screwed into blower housing. May be able to be repaired. Requires soldering a small piece of "unmelted solder" across where the old fusible link was. look carefully at resistor. Or else just replace. Buy new. Junkyard resistor likely to be as bad as yours.

Jun 13, 2009 | 2002 Chrysler Town & Country

1 Answer

A/c fan controle switch does not apply for different speeds except the highest level. I mean nothing happens when i turn it right step by step until it reachs the last one then starts blowing air with the...


This is a common problem, you need your blower motor resistors replaced, they are in a small module that has four or five wires going into it and is next to the blower motor itself.

Feb 25, 2009 | 2003 Dodge Caravan

2 Answers

Replacing Blower Motor Resistor


  1. Disconnect and isolate the battery negative cable.
  2. Open the glove box.
  3. Flex both sides of the glove box bin inward near the top far enough for the rubber glove box stop bumpers to clear the sides of the glove box opening, then roll the glove box downward.
  4. Reach through the glove box opening to access and disconnect the instrument panel wire harness connector for the blower motor resistor from the resistor connector receptacle (Blower Motor Resistor).
  5. Reach through the glove box opening to access and disconnect the blower motor pigtail wire connector from the resistor connector receptacle.
  6. Remove the two screws that secure the blower motor resistor to the evaporator housing.
  7. Remove the blower motor resistor from the evaporator housing.80ac4e54.gif

Feb 04, 2009 | 2003 Chrysler Town & Country

1 Answer

Blower problem


The blower motor resistor:
  • is located on the heater core and evaporator core housing near the blower motor.
  • has three resistor elements mounted on the resistor board to provide four blower motor speeds.
  • depending on the blower motor switch position, series resistance is added or bypassed in the blower motor circuit to decrease or increase blower motor speed.
  • has an overheating device (thermal limiter) that will open the resistor coil when the temperature reaches approximately 184°C (363°F) , interrupting the blower motor operation in all speeds except high.
  • is serviced as an assembly. The thermal limiter cannot be reset and is not serviceable.
REMOVAL
  1. Lower the glove compartment.
  2. Remove the screws and position aside the 4x4 control module.
  3. Remove the blower motor resistor.
4 Disconnect the electrical connector. 5 Remove the screws and the blower motor resistor. INSTALLATION
  1. To install, reverse the removal procedure.

Nov 06, 2008 | 1995 Ford Explorer

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