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my car is 2006 mustang gt V8 automatic ,

I bought Used predator u7140 ( locked with first car ) and i bought the code for restore the tool , after Force restore the car wont start ( cranking but not turn over ) and I take my car for Workshop and reflash PCM ,
now the car start fine but after 1 Minute the reverse light turn on and the car drive in 3rd gear only , and hard reverse

here the trouble code show up

P0689 ECM/PCM Power Relay sense Circuit low.
P1000 OBD Systems Readiness Test Not Complete.

here original backup


please can you help me

please any help

the vehicle was flashed by the dealership?

no , it is small Workshop ,

not the dealership

if it does not work right after they flashed it, they need to redo it properly.