service engine soon
80

Asked by rcorneal Apr 27, 2016 at 09:43 PM about the 1994 Buick Roadmaster Limited Sedan RWD

Question type: Maintenance & Repair

obd 1 code reader code12 thennothing

4 Answers
80

rcorneal answered 8 years ago

why can't I get the service engine soon to go off ?

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223,915

Rowefast answered 8 years ago

12 ERROR CODE DIAGNOSTIC SYSTEM FUNCTIONING CORRECTLY..... Try resetting it by taking the neg. batter cable off for 15 min to 30 min.

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mikeatpriestlake answered 8 years ago

it has been my experience that if there is a weird electrical issue with a car it is often a ground problem. check not only your battery cables, both ends clean and tight, but any ground you can find. also, check the connection to the computer itself. sometimes corrosion in there can cause problems. 2 of my 5 vehicles are obd1, pain in the A** to diagnose.

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