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Sheet Molded Compound.

This is the material that all C4 Corvettes are made of.

It's similar to fiberglass, but much more durable.

The onl...
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RE:Need a little help Gurus - Old problem with new info

Subject: RE:Need a little help Gurus - Old problem with new info
by Oaklands on 2008/2/4 22:34:34

Quote:
They're just asking to see if the circuit is grounded somewhere and tripping the light. Doubtful since this is all underdash stuff. If the ECMis faulty and grounding it, it could be with the car on or off. So I would think you have to disconnect it from the computer before checking to see if the circuit is bad.

And obviously if it was an open circuit, it wouldn't light up at all. Also, does the 12V side of the SES light always have power? if yes, then a pinched off circuit would cause the light to stay on even when the key was off. So maybe your ecm is just grounding it only when it powers up.

Even if the ECM swap doesn't cure it you may be able to return the part.


The SES does not stay on with the key off. It only comes on like it should, when I turn the key to the on position and it goes off when the car is started. The only time it stays on after cranking is when I have these crazy starting problems. The rest of the time it works properly.

Will I have to get the ECM through the dealership or can it be found at most auto parts stores?
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