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  • GM: Acadia, '07-'13, Enclave, '08-'13, Outlook, '07-'10 & Traverse, '09-'13
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2011 - Buick Enclave CXL Canada
Chilton
2011 Buick LaCrosse Repair Manual Chilton - Buick LaCrosse, 2005-13

P311-13D8BFE    28770  New

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  • Buick LaCrosse, 2005-13
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  • Chevrolet TrailBlazer, GMC Envoy, Olds. Bravada & Buick Rainer, 2002-09
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2007 - Buick Rainier CXL Canada
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  • Chilton Manual
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  • GM: Bonneville, Eighty-Eight & LeSabre, 1985-05
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2003 - Buick Park Avenue Ultra Canada
Chilton
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  • Chilton Manual
  • GM: Celebrity, Century, Ciera & 6000, 1982-96
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1996 - Buick Century Special Canada
Chilton
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  • Chilton Manual
  • Second option to 28780
  • GM: Celebrity, Century, Ciera & 6000, 1982-96
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1984 - Buick Century T-Type Canada
Chilton
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  • Chilton Manual
  • GM: Century, Lumina, Grand Prix & Intrigue, 1997-00
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1997 - Buick Regal LS Canada
Chilton
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  • Chilton Manual
  • Does not include information specific to rear-wheel drive, diesel engine, V8 engine or supercharged models. Second option to 28240.
  • GM: Bonneville, Eighty-Eight & LeSabre, 1985-05
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1985 - Buick Electra Park Avenue Canada
Chilton
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  • Chilton Manual
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  • GM: Bonneville, Eighty-Eight & LeSabre, 1985-05
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1985 - Buick LeSabre Collector's Edition Canada
Chilton
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  • Chilton Manual
  • GM: Lumina, Grand Prix, Cutlass Supreme & Regal, 1988-96
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1989 - Buick Regal Gran Sport Canada
Chilton
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  • Chilton Manual
  • GM: Cavalier, Skyhawk, Sunbird & Sunfire, 1982-94
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1987 - Buick Skyhawk T-Type Canada
Haynes
1988 Buick Skylark Repair Manual Haynes - GM Mid-size Models, '70-'88 (Spanish)

P311-247D12A    99100  New

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  • Haynes Manual
  • Spanish Language. Does not include diesel or information specific to FWD models.
  • GM Mid-size Models, '70-'88 (Spanish)
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1988 - Buick Skylark Limited Canada
Haynes
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  • Haynes Manual
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  • GM Full-size Models, '70-'90 (Spanish)
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1983 - Buick Estate Wagon Base Canada
Haynes
1988 Buick Regal Repair Manual Haynes - GM Mid-size Models, '70-'88 (Spanish)

P311-247D12A    99100  New

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  • Haynes Manual
  • Spanish Language. Does not include information specific to diesel engine, or front-wheel drive models.
  • GM Mid-size Models, '70-'88 (Spanish)
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1988 - Buick Regal Limited Canada
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  • Two- and four-wheel drive models with a 4.2L in-line 6-cylinder, 5.3L V8 or 6.0L V8 engine.
  • Chevrolet TrailBlazer, GMC Envoy & Buick Rainer, '02-'09
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2007 - Buick Rainier CXL Canada
Haynes
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  • Haynes Manual
  • Does not include diesel engine, front-wheel drive models, turbo models or 4.3L V6 information.
  • Buick / Olds / Pont. Full-Size (RWD), '70-'90
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1983 - Buick Estate Wagon Base Canada
Haynes
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  • Haynes Manual
  • GM: Eldorado, Seville, Deville, Riviera, Toronado, '71-'85
Brand: Haynes
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1985 - Buick Riviera Luxury Canada
Haynes
2001 Buick Century Repair Manual Haynes - Buick Century, '97-'05

P311-01CB137    19010  New

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  • Haynes Manual
  • Buick Century, '97-'05
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Haynes
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  • Haynes Manual
  • Does not include diesel engine or supercharger information, or rear-wheel drive models.
  • Buick / Olds / Pont.Full-Size (FWD), '85-'05
Brand: Haynes
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2003 - Buick LeSabre Limited Canada
Haynes
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  • Haynes Manual
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  • Buick / Olds / Pont.Full-Size (FWD), '85-'05
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2003 - Buick Park Avenue Ultra Canada

Latest Buick Repair and Repair Manual Installation Advice

CarJunky AutoAdvice

1994 Buick Lesabre Limited Code Reader

Showing 5 out of 5 Posts
Question From solis6924 on 1994 Buick Lesabre Limited Code Reader

I have a 94 Buick Lesabre Limited and want to read my codes. The connector is an OBDII 16 point unit. There are 5 wires connected to it. I bought a reader but it doesn't work. Can anyone suggested a cheap reader or how I can do it with another wire or multimeter. I have read several repair manuals but haven't had the confidence in the information I received. Could you suggest a reader or can you advise me on how I can read the codes? Thanks.

Response From DanD Top Rated Answer

Full OBD II systems can only be coded with a compatible code reader or scan tool; OBD II systems have done away with flash codes.
If your reader will not communicate with the PCM, it’s either a defective/incompatible reader or the PCM has lost its capabilities to communicate.
Try the reader on a different vehicle; it won’t help you get the codes out of yours but it’ll tell you whether the reader is defective or not?
Also 94 was the beginning of the OBD II systems; even though it has the 16 pin connector it’s possible that the system still isn’t a complete OBD II ready system; as in some of the programming of the PCM. There may not be anything wrong with your reader; it could be the system on your car that’s speaking in a language it cannot understand. Which means you may need a scanner with the appropriate software to communicate with this particular system?
Before the powers to be delegated to all the manufacturers to standardize communications it was a free for all as to how to gain access to data.

Dan.

Response From way2old

You may need to go to a GM dealer to have the codes read. That is the transition period for some GM cars from CCC to OBDII. Yhere is an adapter that needs to be installed to read the codes.

Response From solis6924

Thank you very much.

Response From solis6924

Thank you for your response. You have been very helpful. ES

door locks 1997 buick century

Showing 2 out of 9 Posts | Show 7 Hidden Posts
Question From gilaine on door locks 1997 buick century

1997 buick century door lock madness!!!! My husband has located a parasitic battery drain to the Battery 2 60 amp fuse, traced to 20 amp fuse to the door locks. After checking wires, etc in the door panel a friend suggested it might be the BCM or Door lock relay which we can't identify. Only the driver door lock button will lock or unlock that door. The passenger door button will lock and unlock the driver door but not itself. He can hear the switches clicking. Been weeks trying to figure it out. Can anyone help. Saw the Outdoorman's posts and picture of the BCM module but still need to find out where the Relay is??? Help

Response From Discretesignals

Do you have a wiring schematic of the power door lock system? The door lock relay is located behind the right side of the instrument panel. It is located in a bank of relays that are bolted to the cross car beam. You'll need the wiring schematic to determine the correct relay by using wiring color.


**You beat me to it Hammer. Your post/response is much better anyways...**

Response From Hammer Time

LOL................

Response From Discretesignals

You see the wiring schematic for the door lock, HT? Kinda of strange because it shows only unlock signals at the BCM.

I can see how the BCM unlocks the driver's door by grounding the relay, but how does it lock? I am guessing BCM sends 12 volts down the grey wire. Diagram is a little confusing because it doesn't show the inside of the BCM.

Response From Hammer Time

You'll have to bare with me here. I'm having a lot of problem getting the answer window to open.
DS it looks like the relay rests at ground and I suspect the BCM sends power on the gray wire to lock all.

Response From Hammer Time

It's one of these 4 relays.


Behind RH Side Of I/P







The wire colors going into it are.......

Response From gilaine Top Rated Answer

This is very helpful Hammer Time, but what is discretesiganls talking about the wiring schematic of the BCM? Don't see that. The only schematic we have is in the Repair Manual and a wiring diagram reading the color of the wires. Is the BCM in the door panel or with the Relays?? You guys are great. Gil is getting anxious to get back out there. Seems like we might be getting close.

Response From Discretesignals

The relay for the door lock is separate from the BCM. The BCM is located under the left side of the IP near the steering column. There are three modules there and the BCM has three connectors plugged into it.

Some of us have access to vehicle service information that makes Hyanes or Chiltons look like a kid's book. Hammer might post a schematic or you could go to AlldataDIY website and get a one year subscription for service info fairly cheap.

Response From gilaine

Sooo helpful!! Found the BCM. Now he has to check it and the relays. Yes the Haynes is a joke but you work with what you have. As soon as he goes further we will let you know. Don't want to spend anymore money on Just Ask mechanic and buy schematics. Hope maybe Hammer Time might send that to us. So many exhausting hours. Thanks again.

service code and remedy

Showing 2 out of 2 Posts
Question From jayeffel on service code and remedy

1988 Olds Delta 88 Royale, 6 cyl 3.5l. Buick engine I believe

The Service Engine light is on continuously codes identified as "41" and "63"'

Haynes Repair manual for the car shows code "41" as: A) "EST circuit- No distributor reference pulses to the ECM at specified engine vacuum (about 8 inches Hg)" and also as B) "EST- circuit- The electronic spark timing (EST) bypass circuit or the EST circuit is grounded or open. A malfunctioning HEI module van set this code". It show nothing for code "63".

Haynes Techbook for engine code show code "41' as: A) "No distributor signals to ECM, or faulty ignition module"; B) Cam sensor circuit fault or ignition control reference pulse error"; C) "Cylinder select error". {only showed codes causes that apply to this engine. For code "63" it shows : A) "EGR system fault (1990 and earlier Buick and Oldsmobile)"; B) "MAP sensor voltage out of range, probably high"; C) Cruise control system problem(speed error).

I had replaced the alternator a few months ago, which posed some problems. When I took the bad alternator off I removed the plug with 4-5 connections in it , the lead to the battery, and I thought another smaller wire that connected directly to the back of the alternator. The new alternator was different from the old one, the new one is what is shown on the Hayne's manual, at Advanced Auto and Auto Zone. The older one was wired differently. When connecting the new alternator, there was no connection for another wire. and I did not see any wire loose where I would have laid it - near the alternator waiting to be connected.

What are the codes telling me? Replacement of a part or parts? Adjustment of one or more parts? Where should I look?

Response From Tom Greenleaf Top Rated Answer

jayeffel - you meant 3.8L didn't you?

Suggestion: Before you let codes on a 1988 MY vehicle drive you nuts try just R&R ign module and make sure all connections are good and the mess of wires there. Just a thought as the bad connections = bad info,

T