OBD I SAYS CAR NOT RESPONDING. 93 blazer. V6 4.3L. S-10 style.

1993 CHEVROLET BLAZER
150,000 MILES
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MURDAWG
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  • 4 POSTS
ObdII reader would not READ CODES
work
Dec 13, 2011 at 6:41 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
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Does the check engine light work, and can you flash codes by grounding pins A and B at the ALDL?
Dec 13, 2011 at 6:55 PM
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MURDAWG
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which ones are a and b?


Dec 13, 2011 at 7:06 PM
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MURDAWG
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  • 4 POSTS
Yes light works.
Dec 13, 2011 at 7:07 PM
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MURDAWG
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  • 4 POSTS
yes check engine light works
Dec 13, 2011 at 7:12 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
If you are looking at the data link connector, A and B are in the upper right corner, if I am not mistaken. The light should flas codes in sequence when grounded.
Dec 13, 2011 at 8:01 PM
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