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Electrical Problem With '89 Buick


heartsong's Avatar
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11-20-02, 07:02 PM   #1  
heartsong
Electrical Problem With '89 Buick

The 20a ctsy fuse has blown in my buick century causing the interior lights, power locks, horn and other functions on that circuit to fail. I replaced the fuse but it immediately blew out again. There seems to be too much electricity for the fuse to handle. What could be causing this problem and how do I fix it? Any help would be appreciated greatly. Thanks.

 
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Jason R's Avatar
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11-21-02, 09:40 AM   #2  
This could be a not-so-fun endeavor, but you probably have a direct short to ground on one of the circuits that is controlled by this fuse.

You can check the hot leads at the devices on this circuit for continuity to ground. (And I mean the hot leads right where they hook up to the device... i.e right at the plug-in for the horn, right on the hot contact for the dome light(s), right on the hot lead for the power lock motors (fun fun fun)).

If any hot leads have continuity to ground then you've found your problem wire.

Finding the short is going to be the fun part.

 
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11-21-02, 09:42 AM   #3  
Joe_F
This will require a wiring diagram to trace and find out what goes to what.

You would be best to get an Alldata.com subscription or pick up a GM service manual if you are going to tackle the project yourself.

 
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11-26-02, 04:38 PM   #4  
heartsong
Thank You

Thank you so much Jason and Joe F

 
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