ECU CPU what do they mean

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racing_240sx
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what does ECU CPU stand for

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corn322
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Electronic Control UnitCentral Proccessing Unit
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maxnix
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Both are called Modules, not Units in the FSM.

So ECM and TCM are more correct.
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EZcheese15
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maxnix wrote:Both are called Modules, not Units in the FSM.

So ECM and TCM are more correct.
ECM is also the correct term according to OBD2 guidlines. And ECU is not a correct OBD2 term.

However, I still say ECU...just out of habit.
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