Check engine light

1993 BUICK CENTURY
118,942 MILES
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THEBUICK
  • MEMBER
  • 9 POSTS
My check engine light comes on every now and then and I'm trying to find the code for it. Autozone gave me a funky looking key and said to plug it in somewhere and it will flash the code. I'm no mechanic so I have no idea what to do. Any help? Picture would be great. Thanks
Mar 23, 2012 at 1:04 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
The DLC is Under left side of dash, near steering column.
Mar 23, 2012 at 1:19 PM
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THEBUICK
  • MEMBER
  • 9 POSTS
So where to I plug this thing in. I understand how to read the flashes I just need to know where to plug this in
Mar 23, 2012 at 1:21 PM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
Jump terminals a and b together turn the key on not running and the engine light will flash codes. Let me know what thay are and I will check them fore you.
Mar 23, 2012 at 4:51 PM
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THEBUICK
  • MEMBER
  • 9 POSTS
My Buick is giving me code 42.
Mar 25, 2012 at 9:48 AM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
What size engin is this ?
Mar 25, 2012 at 10:16 AM
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THEBUICK
  • MEMBER
  • 9 POSTS
3.3 sedan 6 cylinder
Mar 27, 2012 at 4:51 PM
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DJCL
  • ✓Experienced Mechanic
  • 767 POSTS
Do you have a dvom digital volt meter and a test light at your disposal. To go on we will need them.we will be leaning toward a computer or module or wireing.
Mar 27, 2012 at 5:42 PM
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