Question about 2002 Pontiac Grand Prix

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The blower fan speed control stopped working

2002 pontiac grand prix
the heater/ac fan speeds stopped working
first #1 stopped then afew months later I had no #1or#2speed and so on until recently all 5 speeds have quit working

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Usually a bad blower resistor is at fault...

Posted on Feb 05, 2009

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01 grand.prix ac fan switch only works on high. has a duel temp controller when you turn fan off the only way fan comes back on is to move the temp controller levers


Hi!!
When the Blower Motor Resistor (controls blower speeds) goes bad, the blower motor works only on HIGH SPEED. REPLACE IT.
BLOWER MOTOR RESISTOR Removal & Installation
  • Disconnect negative battery cable.
  • Remove right lower instrument panel insulator panel.
  • Disconnect blower resistor connector located behind right side of dash.
  • Remove blower resistor screws and blower resistor.
To install, reverse removal procedure
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa!!

Feb 18, 2011 | 2001 Pontiac Grand Prix

1 Answer

The fan on my heater/ac stop working on settings 1-4 for awhile it worked on #5 but has now stopped altogether


The blower resistor has gone out but if blower is no longer working on speed 5 then either the blower motor is bad as well or the pigtail connector to the motor are bad. Check the plugs to the resistor and to the blower motor for insulation damage discolored or melted wiring.

Oct 10, 2010 | 2002 Pontiac Grand Prix

1 Answer

1997 Pontiac Grand Prix GT; Elec problem with fan


Replace the blower resistor that is mounted next to the blower motor on the passenger side of the vehicle.
This will restore correct blower operation and I suspect it is also back-feeding voltage resulting in your electrical issues.
Two screws hold the blower resistor into the heater case and it is very easy to replace.
Good luck

Mar 11, 2010 | 1997 Pontiac Grand Prix

1 Answer

Heater fan stopped working, 1,2,3 speeds at first then speed 4 and finally speed 5 quit.


if they went out 1 at a time then this is more than likely the actual switch change it and i think your cured

Jan 15, 2010 | 2002 Pontiac Grand Prix

1 Answer

Heater blower motor only works on high on 2002 pontiac gran prix se-instructions on diy replacement i have the part. Heater Fan works occasionally on speed 5 only. When it doesn't work at all the lights...


for the fan blower motor it could be the resistor or the fan control speed control switch is bad.for no lights replace the DRL RELAY for the lights. for the heated seats check the fuses.

Jun 01, 2009 | 2002 Pontiac Grand Prix

2 Answers

2000 grand prix fan speed


i have been having that same exact problem with my 2002 grand prix for over a year now, and when my ac is on the lower setting the it doesnt work plus the headlights and lights on my dash go out. On Max everything works. i changed the blower resistor(about $35), still doesnt work. i changed all relays and fuses related to the ac, still doesnt work. i changed out the actual ac control switch in the dash, still doesnt work. i have changed everything but the blower motor and have asked every mechanic and auto parts retailer i come across and no one knows the answer. The best answer i got is that it is probably a wiring problem like a short somewhere.

May 28, 2009 | 2000 Pontiac Grand Prix

1 Answer

2002 pont. grand prix-Heater/AC Only works on High


you need a new speed control resistor... this is something you will have to get from the dealer, but you should be able to replace it yourself - it is under the dash on the passenger side mounted near the bottom of the fan motor.. you will remove a couple of screws, and it will come out of the black casing it is mounted inside.

Jan 12, 2009 | 2002 Pontiac Grand Prix

1 Answer

Heater fan controls


You most likely need to replace the blower motor resistor. Two of my grand prix vehicles had the same problem. HI speed bypasses the resistor...which is why it still works. Speeds 1-4 go through the resistor. It's not too big a deal to change on my cars if you're small, can stand on your head and dislocate your should to get to it. (It's located next to the firewall on the passenger side.) Resistors for my car run around $30. Good luck.

Jul 22, 2008 | 2002 Pontiac Grand Prix

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