Short circuit detected by only Bachmann GG-1

[gmhyman]

I have a small (4'x6') n scale layout divided into 3 electrical blocks.   When I try to run my Bachmann GG-1 DCC on block 1, the headlights flash indicating a short circuit. On the other 2 blocks it works fine.  Every other loco I have - both Bachmann (1 steam), Kato (GG-1 and EM diesels) and BLI (steam) work fine.  The short appears to be detected once the GG-1 crosses a siding turnout on to the main line.  Any idea how to fully diagnose this or is it simply an idiosyncrasy of the DCC decoder in Bachmann's GG-1?

[gmhyman]

One thing i forgot to mention.  The layout is wired for both DCC and DC.  Switching to DC on block 1 makes things work fine.  I've also tried 2 different controllers - a Digitrax DC52 and Bachmann EZ, and the results are identical.

[Tenwheeler01]

The way you are describing the issue it sounds like it is internal to that locomotive. Since your DCC system are not detecting a short.

Have you completely disconnect the DC power pack and checked each block shorting them with a quarter to making sure the DCC booster detects the short?  Check all three sides of the turnout.

Also because you are switching between DC and DCC make sure you are switch both Rail A and Rail B between them with a DPDT switch. Not using something like a Atlas 220 controller with DC on Cab A and DCC on Cab B. This does not stop the DC power packs common from ground to the DCC Command station/Booster. And will damage the DCC Command station/Booster.

If you installed the decoder in that locomotive, I would just double check the installation.