Engine not shutting down?

2017 FORD TRANSIT
234,324 MILES • 3.7L • V6 • 2WD • AUTOMATIC
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BLESSING EWOBOR
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Hello, whenever the engine is started, it keeps running when the ignition switch has been turned off, even with the ignition key removed.
It will only shut down when certain relays have been removed from the fuse box.

What could be the cause?
Could I have the power distribution of the engine?
Could I have the wire diagram for the engine?
May 4, 2025 at 9:52 AM
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BLESSING EWOBOR
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Hello
May 5, 2025 at 10:04 AM
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STRAILER
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Hello,
May 5, 2025 at 10:13 AM
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STRAILER
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I would try running the codes because the BCM can be going bad, here is a video to show you how:

https://www.youtube.com/watch?v=InIlnsjOVFA

Also, I would try swapping out the PCM relay here is the location which it sounds like you remove to get the engine to shut off. If the relay is stuck on the engine will not shut off. Check out the images (below). Let us know how it goes.
Image (Click to enlarge)
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May 5, 2025 at 10:18 AM
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BLESSING EWOBOR
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Thank you.
May 5, 2025 at 4:37 PM