40 bit or 80 bit ford key??

Question

how do i tell on 2012 ford expedition if the sa key is 40 bit or 80 bit??

Answer 1

Voltage test to determine if
key is 40-bit or 80-bit:

Pin 1 of transponder connector (pats ignition)

80-bit Key :
NO Key IN : 0V
Key IN & Ign OFF : +12V
Key IN & Ign ON : +12V

40-bit Key :
NO Key IN : 0V
Key IN & Ign OFF : 0V
Key IN & Ign ON : +12V