i have tried this and have had no luck doors still lock at 5mph

1) Ignition off, all doors closed.
2)All within 30 second do,
2.1) ignition on
2.2) power door UNlock 3 times
2.3) ignition OFF
2.4) power door UNlock 3 times
2.5) ignition on (Horn should Chirp)
2.6) power door Unlock 1 time
2.7) power door LOCK 1 time (horn should chirp)
2.8) ignition Off (horn should chirp)

 

after trying 3 times it now does not auto lock

 

the timing is critical on these. If you take a second too long, it don't work.