Here is the step-by-step instruction on adding a remote key for Honda Accord 2008 year by using new OBDSTAR X300 Pro3 Key Master key programmer.
Note: OBDSTAR X300 Pro3 in orange case is the same as Key Master in green case.
Adding Honda remote key procedure:
Select vehicle brand: HONDA/ACURA
Check vehicle software verison
Select “Auto” add key
Select Honda connector 16-PIN or 3-PIN, the 2008 yr Honda comes with 16-PIN connector
OBDSTAR Key Master detect vehicle information
4th generation immobiliser device
Select “Add a key”
Turn in the ignition switch without changing the key within 16 seconds.
Turn on the ignition switch with a new key within 11 seconds