Thread: Check engine light broken
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01-05-2011 05:50 PM #7
CHR Member
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- Feb 2004
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- Tucson
- Car Year, Make, Model: 39 Ford Coupe, 32 Ford Roadster
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Don,
Are you saying that you can verify that the hot side of the MIL bulb has 12 volts? If so, can you force a ground on the other side and see if the bulb illuminates? If it is a LED, it is polarity sensitive....wired backward will not work.
You are correct that the ECM is sinking, not sourcing (grounding, not suppling the 12 v)Last edited by robot; 01-05-2011 at 05:54 PM.
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I bought the 76 in August , but haven't been able to work on it. When I get a chance I'll post some pictures.
Corvette Resurrection?