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Re: No service engine soon light
its a simple one wire circuit powered by the fuse i mentioned to the ipc ses light and grounded by the ecm. ecm supplies grd when required to light led
you could check for power into the cluster at the pink wire A7...is the 12v supply. if you grd A11 and the ses doesn't light the led in the cluster is bad. if it lights....bad ecm??? all very $$ so if I'm wrong don't make me pay.
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