Question about 1994 Buick Century

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Electrical issue In my 1994 Buick Century 3.6 the power locks, headlights, tail and brake lights, interior lights, radio/clock memory have all stopped working. The power windows still work. I've replaced fuses, but don't know where to start after that. Yes, I'm a girl so I don't know much about where to start, but neither does my car buff please?! Having to be home before dark is cramping my schedule!

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  • Anonymous Aug 11, 2008

    The tail lights and interior lights do not work on my 94 buick century. The anti-lock brake light will come on and off and so does the check engine light. I've tried to replace the fuses but nothing has it something electrical? will it cost a fortune to fix these problems?

  • Anonymous Nov 11, 2008

    I have the same problem with my 1995 Buick Century. The lights, horn, and power locks all stopped working.

  • pcgeek08 Jan 06, 2009

    Hello, I own a 94 buick century 3.1 i think...well, I was driving down interstate 77 south thourgh West Virgina, and i had to brake really hard to avoid a collision, I had the cruise control running, tried to restart it, but it no longer works, nor does my autostarter (custom, but came w/ car) both could be shut off stepping down on the brake...

    can anyone help?

  • Buick_Gurl21 Mar 12, 2009

    I also own a 94 buick century and also my interior lights, tail lights, headlights and dash lights do not work I have replaced fuses in the interior but i can not find the fuse box under the hood. But funny things is my turn signals still work and the car is fine besides that! Please someone help me I need my car so I can get back and forth to work every night (i work grave yard shift) Yikes!!!!!!

  • pcgeek08 May 11, 2010

    are the power locks sluggish, or fully working?

  • carlos gonzales Feb 01, 2013

    thats what im afraid off 100 an hour over hear.



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It might be a electrical wire shorting or bad.

I had solved a majority of my problems by getting my electrical system looked at (turned out a brake wire was bad, and several needed to be replaced.)

Posted on Mar 16, 2009

  • pcgeek08 Sep 19, 2009

    Responding to your question, it may be a bad battery as well

  • carlos gonzales Feb 01, 2013

    new battery



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Fuses panel described in English

Hope this helps your out. I know the diagram and locator is a bit blurry but hopefully it gets what you need.
Drivers kick panel:
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Engine compartment :
Head 25A- headlights IG 2 30A- Ignition switch IG coil 15A -Ignition coil, condenser,generator IC regulator, diagnostic connector. O2 down 10A- Rear O2 sensor O2 up 10A- Front O2 sensor Fuel pump 10A -Fuel pump unit Injector 10A -Fuel injector ,camshaft positioning sensor, purge solenoid valve, EVAP, IAC actuator, Mass Airflow sensor, EGR stepper motor. fuel pump relay coil, vehicle speed sensor. A/Con 10A - A/C compressor controls, cooling fan BTN 30A- Brake light , high mounted stop light. Tail light LH 10A- License plate light, tail light , rear combo light, instrument panel illumination Tail light RH 10A-License plate light, tail light , rear combo light, instrument panel illumination Head low 15A- Headlight Head Hi 15A-Headlight Horn 15A- Horn jlmacman.png jlmacman_0.png

Inside kick panel jlmacman_1.png

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In my 1995 Buick Century 3.1 the power locks, headlights, tail and brake lights, interior lights, radio/clock memory have all stopped working. The power windows still work. I've replaced fuses, but don't...

Don't think it could be a relay problem . Not a single relay that would control all these system's .They all have their own power supply's . Viewing wiring diagrams for electrical distribution & ground circuit's is how to find problems like this. Free wiring diagrams here Enter vehicle info. year, make ,model an engine size . Under systems click on electrical distribution , then under subsystem click on power distribution . Click the search button then the blue links . With a voltmeter test for B+ voltage on both sides of the fuse's , The little metal tab's on top of the fuse's . Or pick out one of the thing's not working an look at it's wiring diagram an test the circuit using voltage drop , this will show which side of the circuit has the problem . Watch these video's an learn how to test automotive electrical system's , not guessing .
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know
The BEST Way TO Perform Parasitic Draw Test

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