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International Automotive Technicians Network
Re: 88 bmw 735i no start
Posted to Technical Discussion Forum on 2/25/2003

Hi Frederick,

Have you tried to probe a 5v power supply from the ECM? This is one way of determining if the ECM is awake. No 5v, and the ECM is not alive. Before going any further, I would confirm this.

I would also be wondering how this vehicle came to ha... Login to read more.