1993 Pontiac Grand Prix Fault codes.

1993 PONTIAC GRAND PRIX
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DEADPOOL3080
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Computer problem
1993 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic

How do get the fault codes on a 1993 Pontiac Grand Prix without a code reader?
Apr 11, 2010 at 4:46 AM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Use a paper clip or a wire and junp connect terminal A& B Turn ignition on check engine light should flash out the codes


https://images.2carpros.com/forum/automotive_pictures/99387_Graphic1_709.jpg

Grounding the ALDL test terminal "B" at this time should cause SERVICE ENGINE SOON light to flash a Code 12, followed by any codes stored in ECM memory.
Apr 12, 2010 at 11:45 AM
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