Flashing Cab Light

Probably a short. The 1225 model was way before the time of self diagnostics like the S3 #261, Vision Line Hudson, and more legacy engines have. Shouldn't be any problem. If it doesn't stop eventually open shell of engine and look to see if wires going to cab light are connected properly or if one of them is pinched.

-Mike

Do a search here, I remember someone else having a flashing cab light.  I believe the cure was a reset of the locomotive.  Check the manual for the reset code for your locomotive and give that a try.

I can't see this being a short, I think configuration when I see something like this.

yes your loco needs resetting.  make sure you use the number in your manual for a reset.

empt 53- take your engine move switch from program to run place on track,apply power, press eng ID number then set, then press eng and ID number again and then press aux 1 button and then the number 1 and then set and then shut off power wait 10 seconds, place switch from program to run and then apply power and then restart engine. is light flickering then? By doing above you have reset engine.-Happy Railroading!!!-Don Klose

My TMCC GG1's headlights flash when it's in program mode.  Hitting the "Set" button puts it back to normal.  I've never tried it on my Legacy Diesels, but a reset should work for you.  If it was a short, you probably wouldn't be running the engine.

A steady flashing light is most likely NOT a short,this loco DOES NOT have the diagnostic codes as Mike stated. I do recall another thread involving a "strobe effect" that could be inadvertantly turned on in certain Lionel products. There are reset instructions in the back of your owners manual,if that doesn't work I would send an EMAIL to Lionel customer service tech support. They wiull be able to direct you as far as any other resets.

Once gain the Forum members come through. I am realatively neww to the high tech trains and come here for help. Thanks for all the greatreplies. I will try the reset and see if that is it.....if not I'll be back.

Thanks again

You can get this flashing when setting momentum with TMCC engines.  There also is Aux code programing that could effect how the lighting is programmed.  If it happens again, you can just try a AUX1 and 0 to reset.  If that doesn't work the reprogramming will as you discovered.  G

The headlight, not the cab light, flashes when setting momentum, right?

Yes, but some early TMCC engine don't have a dedicated CAB light, just a headlight that also illuminates the Cab, like my NYC GP-9s.

So without actually being there.....  :-) G