List of 1980s CCC GM ECM Trouble Codes

[69hurstolds]

Straight out of the 84 Oldsmobile Chassis Service Manual. I've seen posts asking about this code or that code, etc., and figured this may be useful for people to get an idea what the code is should they throw a check engine light. All the codes in one place. As noted, not all engines will use all codes.

 

[stew86MCSS396]

I like to use search words repairpal+obdI...
...but if someone starts a thread like "I have a SES light and I jumpered the ALDL, got a code xx..." and they DON'T say what the code alludes to, I'm usually Officer Barbrady "move along nothing to see here..."