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Old 08-17-2020, 10:51 PM   #6
Jason 56
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Join Date: Nov 2018
Location: Ishpeming, mi
Posts: 602
Re: Stand alone harness question

Here’s some diagrams. The first two are of the factory fuse panel for engine controls which I duplicated. Except the downstream O2 sensors. The 3rd picture is the ignition schematic. Looks like the violet/yellow wire is the one I’m looking for but, it‘a called the accessory data wakeup (Pin 70)? Not sure if that’s the one? The 4th image is the starter schematic. That one has a violet/lt green wire coming from the main ignition relay. It’s labeled run/crank ignition 1 voltage (pin 51). Not sure which wire I should use. The labels are from the last picture which is the blue X1 pin out for the ECM. Pin 63 runs to the starter relay to activate it. Nothing in all the ECM pin outs is labeled ignition signal!
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