edged-on Posted April 24 Report Share Posted April 24 I have a 2015 for Edge with a no-crank, no-start issue with the following codes: p0073, p0122, p0223, p0740, p1289 tracing wires from the temp sensor & throttle position sensor back to the ecu: wiring is good. These were the easiest to get to and test. Which wiring diagram suppliers do you recommend ordering from? thank you. Quote Link to comment Share on other sites More sharing options...
1004ron Posted April 24 Report Share Posted April 24 Welcome. I don't expect any of those codes would inhibit a crank but might inhibit it firing. I bought one like the below linked off eBay for around $20 - it's monochrome and would love the color versions but have heard that they're real expensive. 2015 FORD Edge Electrical Wiring Diagrams Diagram Service Shop Manual EWD OEM Quote Link to comment Share on other sites More sharing options...
edged-on Posted 3 hours ago Author Report Share Posted 3 hours ago Thank you for the link. Update & Resolution: Looking through the electrical diagrams, the yellow sig return wire seemed to be the culprit, but I have no proof. After exhaustive connectivity checks, relay swapping, fuse verification testing, plug connector contact cleaning: It just fired up and purrs like a kitten. I believe the car just wanted a break; to be jacked up on the stands in the garage for a month or so. Quote Link to comment Share on other sites More sharing options...
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