Sorry, forgot to list the flash sequence for the test code:
LED 3:
Left Thumbstick - 1 Flash
Left Bumper - 2 Flashes
Right Bumper - 3 Flashes
Right Thumbstick - 4 Flashes
Sync Button - 5 Flashes
LED 4:
X - 1 Flash
Y - 2 Flashes
B - 3 Flashes
A - 4 Flashes
LED's 3 + 4 Together:
DPad Left - 1...