Good morning Tony, sorry for delay, my name is ***** ***** you for asking your question, I will try and help you out.
The most likely cause is the ac high pressure switch is stuck closed,90% of the time when fan stays engaged I find this, or associated wiring is the issue,,ac high pressure switch is either on ac compressor small line or anywhere after that on high side line (small line) most times on drivers side after freon goes through condenser. Check the plug on ac high pressure switch for corrosion repair as needed,,if the ecm does not see signal fan defaults to on.
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