1998 Cadillac Eldorado 4.6L, why wouldn't memory be saved with a dead car battery?

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1998 Cadillac Eldorado 4.6L, why wouldn't memory be saved with a dead car battery?

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OBDIITech · Answer 1 · 2017-06-10T19:21:29+0000

There is a non serviceable battery inside the Engine Control Module (ECM) that keeps the ECM memory in case the car battery dies. If the ECM is not keep the memory then the battery inside the ECM is probably dead.

1998 Cadillac Eldorado 4.6L, why wouldn't memory be saved with a dead car battery?

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