C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Icm?

Old May 11, 2006 | 05:11 PM
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Default Icm?

I keep seeing the acronym ICM now which I have never seen before. Is that the same as the ECM, i.e., main computer, or is that another computer separate from the ECM. Remember, there are no stupid ?s.

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Old May 11, 2006 | 05:28 PM
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I haven't seen that one. I know my '95 has a PCM, (which is what the ECM became after the advent of electronic transmissions) a CCM and the module that controls the ABS and ASR. I'm not sure what the acronym is for it. I do know this though, there are far too many acronyms in the world today, we old guys can't keep up!
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Old May 11, 2006 | 05:32 PM
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I somewhere picked up "ignition coil modual" for ICM .

Last edited by WEH 2000C5; May 11, 2006 at 05:39 PM.
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Old May 11, 2006 | 05:41 PM
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Originally Posted by WEH 2000C5
I somewhere picked up "ignition coil modual" for ICM .
That makes sense! As I said, too many to remember!
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Old May 12, 2006 | 07:49 AM
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Thanks guys

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Old May 12, 2006 | 08:23 AM
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Yep, it's an Ignition Control Module. The ICM is a small component located with the coil. It's supposed to have a heatsink grease compound behind it to help transfer heat to the bracket. If it gets too hot, it can cause performance problems.
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