Function Controls F9-F12
Some Broadway Limited Locomotives use Functions F0-F12 when running in DCC mode. In some cases F9-F12 do not respond properly. To remedy this problem, simply reset the locomotive to the factory default setting per the Broadway Limited Instructions you received with your locomotive.
Note: F9-F12 are accessible on the DT400 throttle when used in conjunction with the DCS100 command station.