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Class 37 DCC directional lighting

Started by ColinA, July 06, 2021, 04:11:33 PM

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ColinA

I have a Class 37 with directional lighting.
Red lights are at the front though, white marker lights at rear.
Is there a simple way to switch these around?
Any advice appreciated. Thank you.

Len

Depending on the decoder installed you've basically got two options:

1. Rewire the decoder and physically swap the white and yellow wires.
2. You may (key word there) be able to swap the light directions by changing a couple of CV's. If the decoder supports it, and not all do, to remap the headlight functions, use CVs 33(F0-Fwd) and 34(F0-Rev). Program CV33 to 002 and Program CV34 to 001.

If reprogramming doesn't work, you're pretty much stuck with option 1.

Len
If at first you don't succeed, throw it in the spare parts box.

ColinA

Thank you for your help it is appreciated. Regards Colin