Question about 1991 Buick Regal

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The auto door locks on my 1991 buick regal quit or only work intermittenly. I bought a new transmitter (hand unit) and replaced the relay under the dash. The dealer could only program the new hand piece to work only the doors not the trunk. Ont the inside of the car the lock and unlock buttons only work once in a while. Are there anymore relays associated with the auto door locks? Tired of opening the dorrs with a key! Wolfman

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I had they same problem a few years back. Aging electronic circuits may be the issue here. That is what happened to cause the remote door feature to operate intermittently in my 1991 Buick Regal. Over time the heat of summer and the cold in winter stress solder joints on printed circuit boards. That stress can bring about what is known as cold solder joints.

I located the remote door receiver module behind the back seat under the cover that holds the Third Brake Light. Once removed from the car I opened the module up and inspected the printed circuit. Sure enough I saw the problem using a magnifying glass. Many of the solder points had cracks around connectors, resistors, capacitors to name a few. Resoldering each bad point sovled the intermittent operation. I hope this helps...

Posted on Sep 09, 2009

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1 Answer

Brake relay is stuck and I can't find the GM part in book that relates to the Danso relay that is in the car. Anybody have a replacement part number ?
No as i never order parts first i always take them off and go to auto factor with part in my hand then i always get the right one

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Looking for a fuse diagram for the fuse box under the hood.
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Feb 06, 2011 | 1991 Buick Regal

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relay is all that goes to the window motor.no fuses. did you check the switch as well?

Feb 20, 2010 | 1991 Buick Regal

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My signals lights won't work on my 1991 Buick Regal. I changed the fuse and thats not the problem. I need to know where the flashers are on a 1991 Buick Regal; 4 doors, 3.8.
The flashers and the signal lights are two entirely different items.

If your blinkers are not working, change the bulb(s), if you turn on the flashers and they don't work then the flasher module needs to be changed which is usually found on the fuse box next to your left foot under the dash.

This will usually either look like a square block or a cylindrical plastic tube. If you turn on the flashers and go down there and don't here it ticking or feel it ticking with your finger on the plastic housing, chances are it is shot, just pull it out go to your local auto store and get another, plug it in and you're done.

Jan 12, 2010 | 1991 Buick Regal

1 Answer

Buick regal door locks not working correct
YOUR RELAY OR RELAYS COULD BE FAULTY.

Sep 18, 2009 | 1998 Buick Regal

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THE REMOTE DOOR LOCK ON A 2000 BUICK CENTURY HAS QUITE WORKING. THE FOBS ARE GOOD BUT WON'T OPEN ANYTHING.
The transmitter may have lost programming,
In the event that a transmitter is lost, program the old and the new transmitters into the memory of the remote control door lock receiver. Up to 4 transmitters may be programmed.

IMPORTANT:

  • Once entering this procedure, programming the first transmitter erases all previous transmitters. You must program all transmitters.
  • Program one vehicle at a time. One transmitter could be programmed into other vehicles that are also on program mode in close proximity.
  1. Sit in the driver's seat.
  2. Remove the ignition key from the ignition lock cylinder.
  3. Close all vehicle doors.
  4. Press and hold unlock on the door lock switch.
  5. While holding the door lock switch in the unlock position, insert and remove the ignition key twice. Do not rotate the ignition lock cylinder.
  6. Insert the ignition key a third time leaving the key in the ignition lock cylinder. The ignition must remain in the LOCK position for the rest of the procedure.
  7. Release the door lock switch. You will hear three chimes. This chime feedback indicates that transmitter programming is active.
  8. Press and hold the lock and unlock buttons at the same time on the keyless entry transmitter for 12 seconds . You will hear two chimes. This chime feedback indicates that the transmitter has been programmed successfully.
  9. Repeat step 8 for the rest of the transmitters (for a total of 4 transmitters).
  10. Exit this procedure by removing the ignition key from the ignition lock cylinder.

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1 Answer

All windows wont roll up or down on 2000 buick regal
contacts in window motors sometimes get dirty from lack of use. Take a rubber hammer and beat under the interior edge of the open door while working the switch (don't be gentle). It it works, exercise the window more frequently.

Apr 24, 2009 | 2000 Buick Regal

1 Answer

I'm looking for the location of the auto door lock relay. The dealer says it is somewhere under the dash. My reciever is good and the transmitter is good so there has to be a bad relay somewhere. Wolfman
It is on the rt side under or by the glove compartment need a picture go to collisionrepair advice.com

Apr 11, 2009 | 1991 Buick Regal

1 Answer

1994 buick regal-passenger door lock will not operate with electr
first check or replace the relays in the fuse panel under the dash for those two circuits and see if that fixes it

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Brake relay is stuck and I can't find the GM part in book that relates to the Danso relay that is in the car. Anybody have a replacement part number ?

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