Programming instructions only worked for first key

Question

The instructions above worked as described for the first key.  However, when I insert the second and key and turn to ON/OFF the YELLOW LED never turns ON nor does the RED LED flicker.  As such, the remote start function does not work. The second key works perfectly to lock and unlock so I don't believe it is a battery issue.  Any further suggestions?

Thank You

Answer 1

You need to have 2 original Ford keys. Both keys must have SA stamped on the keyshaft. If you do have 2 original keys, your trucks computer may already have more than two keys programmed into it. If that is the case the trucks computer may be locked out, so programming new keys is disabled. Only a Ford tech tool can enable this feature, and also tell you how many keys are programmed in this vehicle. Are you using a T-harness? If so the EVO must be at 71.00+ firmware. If no harness it must be at v4.18.

Answer 2

When you follow the procedure of key 1, Key 2 then Key 1 again, do the doors lock/unlock by themselves? This is a direct indicator that tells you if the vehicle is locked from programming.