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40 bit or 80 bit ford key??

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how do i tell on 2012 ford expedition if the sa key is 40 bit or 80 bit??
asked Jan 5, 2017 in Ford by Taylor Duzan (390 points)

1 Answer

0 votes
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
answered Jan 5, 2017 by derek ! (277,310 points)
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