Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is ***** ***** I will be glad to assist. Please allow me a moment to gather some information.
ok, I have had many issues with re man ecms. I worked at pepboys in the past and they use the same ecms as autozone. we go to gm for the correct ones.
the only thing is that you need the original ecm, a gm unit for a core, when you get one there. they always have come through.
anyway, did you verify power to the ecm??
also, did you replace the prom as well???
yep, the prom will keep the light from not coming on. try to get a new one from gm. they are still available. it is cheap enough to try with the original ecm. if that does not work then replace the ecm.
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