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98 Buick park avenue, electric door locks work intermittently, lock while engine running and won't unlock!

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  • Buick Master
  • 12,440 Answers

Do you know how to use a wiring diagram an a DMM - digital multi-meter to test automotive electrical circuit's ? That's how one would go about solving a problem like this . Testing B+ power ,plus ground circuit's . Without testing the circuit's we'd only be guessing .Lock's are controlled by a electronic module. Could also have DTC'S - diagnostic trouble codes stored. Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. year , make , model an engine size . Under system click on body & accessories ,then under subsystem click on power lock's . Click the search button then the blue link. Do the power windows work ?
The power door lock sub-system is comprised of the following components:
• The class 2 serial data link
• The door lock actuators (motors/manual levers)
• The power door lock switch
• The driver door module (DDM)
• The left front power door lock switch
• The passenger door module (PDM)
• The rear door module (RDM)
• The remote function actuator (RFA) module
• The right front power door lock switch
• The simple bus interface (SBI)

If you know nothing of the stuff i posted ,your best bet would be to take your vehicle to a qualified repair shop.

Driver Door Module (DDM)
The driver's door module (DDM) directly controls the driver's door lock actuator motor. The DDM receives and forwards the driver's door switch lock request messages to the remote function actuator (RFA) via the serial data link. The RFA receives the request message and examines the message for lockout prevention criteria. If the conditions are proper, the RFA sends a lock or an unlock command message back to the DDM. The DDM forwards door lock messages received from the RFA to the passenger door module (PDM) and the rear door module (RDM) over a simple bus interface (SBI) line. The DDM also contains a class 2 serial interface which communicates with other vehicle system modules. The left front door power window and the outside power mirror are also controlled through the DDM. Battery voltage is always applied to the DDM through the retained accessory power (RAP) circuit breaker located in the underhood Maxifuse® block.

Could be a simple problem , but one never know's till they do all the testing .

Electric Testing Techniques You Need to Know

Common Repair for Chevy Olds Pontiac Power Door Locks

Posted on Dec 07, 2017

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6ya6ya
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Posted on Jan 02, 2017

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  • 85 Answers

SOURCE: 2003 buick park avenue

take all screws out and pull out around the edges, should pop out, then lift up by the window.
or  Go to this website. It shows you how to remove the door panels. Ignore the part about side mirrors. kwmuth.com



with this model but I've had the inside door panels off several cars. + Then unscrew the armrest/handle (2 long screws). + Then run your fingers under the bottom of the panel (it is probably upholstered/padded hardboard) - this panel is usually held on by about 5 or 6 clips that pop out. + There may also be speaker wires etc if door-mounted speakers have been installed. + Then you should be able to gently slide the door panel up, so that the top ridge pops out from alonside the window glass.

Posted on Mar 02, 2009

carlsbiz
  • 1124 Answers

SOURCE: electric controls in door won't work after battery change

Could be a fuse..
Could be a relay..
Could be a bad control panel in the door..
See if there is power getting to the controal panel..

Hope this helps !!
rate me good ;o)

Posted on Jul 14, 2009

  • 120 Answers

SOURCE: 1996 buick park avenue car runs good going down

emobiliser problem.

Posted on Aug 24, 2009

  • 14036 Answers

SOURCE: Buick regal door locks not working correct

YOUR RELAY OR RELAYS COULD BE FAULTY.

Posted on Sep 18, 2009

  • 491 Answers

SOURCE: 2000 Buick Lesbre - Intermittant electrical: Door

THE PROBLEM SOUNDS LIKE LOOSE WIRING CONECTIONS IN THE DRIVERS DOOR , BEST THING TO DO IS HAVE A LOOK OPEN UP DOOR PANEL AND CHECK ALL CONECTIONS, GOOD LUCK

Posted on Oct 22, 2009

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98 buik park avenue electronic back doors will not unlock


yes it is common for the gm door lock actuators to fail and it is a sign that they are bad if you feel them try to operate i am not sure on that year and model how the panel is fastened to the door put gm uses screws and pins with push clips as well all on one door panel

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THE PROBLEM SOUNDS LIKE LOOSE WIRING CONECTIONS IN THE DRIVERS DOOR , BEST THING TO DO IS HAVE A LOOK OPEN UP DOOR PANEL AND CHECK ALL CONECTIONS, GOOD LUCK

Oct 22, 2009 | 2000 Buick LeSabre

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Electric controls in door won't work after battery change


Could be a fuse..
Could be a relay..
Could be a bad control panel in the door..
See if there is power getting to the controal panel..

Hope this helps !!
rate me good ;o)

Jul 14, 2009 | 1999 Buick Park Avenue

1 Answer

1994 buick park ave


The turning over without the starts; my car does the same thing. I would just keep trying and eventually it would run. Well, I was told it could either be a bad ignition coil, or maybe an oxygen sensor going bad. A tune up might help too. Does this happen after rainy weather? It could be a crack that's allowing moisture in the ignition parts.

Not sure about the windows, sounds like an electrical problem. Check the fuses yet? It might be a bad solenoid switch in the doors. My passenger side door lock never opens with the auto unlock, but it does lock. I have to manually unlock it. I've just been too lazy to replace the part. The strange thing is that in the 2 years I've had it, it automatically opened ONE TIME out of the blue, but then the problem came back.

Jun 24, 2008 | 1994 Buick Park Avenue

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