GM OBD1 codes 81, 82 and 83?

Tiny
4LASO4
  • MEMBER
  • 1995 CHEVROLET 1500
  • 5.7L
  • 2WD
  • AUTOMATIC
  • 390,000 MILES
What does codes 81, 82 and 83 mean?
Wednesday, August 30th, 2023 AT 8:09 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Here is a list of GM obd1 codes:

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

81 - Brake input circuit fault
82 - Ignition control (IC) 3X signal error

There is no code 83? Can you please recheck it?
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Wednesday, August 30th, 2023 AT 12:30 PM
Tiny
4LASO4
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  • 3 POSTS
Rechecked still flashing code 83.
What is Ignition control (IC) 3X.
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Wednesday, August 30th, 2023 AT 12:49 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
This can be the ignition module, coil or primary pickup coil problem, it just says problem with the ignition system.
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Thursday, August 31st, 2023 AT 10:29 AM

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