Write this blog to share my problem about  Maxisys Pro MS908P  key erasure on 2000 ford focus and its solution with you   2000 Ford Focus Z-Tech Diagnostic tool used:  Autel MaxiSYS MS908P Issue description:  I intended to replace the PCM in my vehicle With followed all the instruction for key erasure, the Autel Scan Tool  MS908P seemed to freeze at the 9 second make on the task bar  Reasons:  The  engine told me that I could only program new third key with having 2  already programmed keys, which meant that I couldn’t program new key if I  did not have 2 working Keys  Solution:  1.Download the beta version V6.12.10 to have a test.  2.Try  to program key manually. The process bar will appear for 10s after key  erasure. Please ignition off and program it as followed  Turn the ignition key to position 0  Cycle keyl in the ignition from OFF to RUN for at least 3 seconds  Cycle key2 in the ignition from OFF to RUN for at least 3 seconds  Cycle keyl in the ignition from OFF to RUN for ...