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International Automotive Technicians Network
Re: impalas won't die
Posted to Technical Discussion Forum on 3/24/2009 1 Reply

Hi Harrell,

Do you have a Tech2, or other scanner that can talk to the BCM on this vehicle?

Looking at the schematics it looks like IGNITION 1 power to the ECM is controlled by the IGN MAIN PCB relay, which is controlled by the BCM...probably by the IGNITI... Login to read more.

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