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2001 Buick Park Avenue Questions

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Will part of the switch go bad on the drivers door or if it goes bad will nothing work? It's on a 2001 Buick Park Avenue Ultra
Nothing on the drivers door is working. Code U1160 comes up on the scan tool. All other windows and locks worked by there own switch at first but now none of them work. Seats still work fine, nothing on the drivers door works. Scan tool says drivers door module lost communication.
Checked connectivity for all ground and hot wires and there's energy but nothing comes on but if I hook up jumper cables everything comes on but no start and when I take them off and no power PLEASE HELP
this car really jumps left when hitting a bump, I hear an air pump when it initially starts so I take it it has an air ride system
check engine light is on and it hasn't showed any codes. I would appreciate any information.
I have replaced both bright and normal headlights and still the bright lights won't work but the symbol on dashboard is lit as if they are on, anytime the headlights are on the symbol is also when I try to turn them on and off it doesn't make the click sound to activate like it used to
engine will not turn over with car key.
I have a 2001 buick park avenue the only issue with the car is that it doesn't have overdrive (last gear) still can be drove on highway at 70 mph with rpms at 2500 and normally it would be at 2000 in overdrive.
I have drove this car for a year like this with no issues.
Trans doesn't slip or get hot and motor so can anyone tell me whats the problem
What causes the car to idol and die
have 2 PARK AVE's..both 02 modl yrs. each has experienced same issue in past yr where the UNLOCK MECHANISM disengages and prevents door access in or out. 1 happened on driver side dr, other on passenger side. sometimes it operates fine. no consistency to occurrance regardless of hot or cold outside temps. where's part located and how is it fixed?
is it in the fuel tank?
Air conditioner blows hot on driver side, cold on passenger side. What is the problem?
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