Rear red lights not working

xitian

New member

Equipment
B2650 ROPS
Mar 10, 2024
3
2
3
Chattanooga
My rear “red” tail lights stopped working. Front factory hood lights still come on with the switch. Looks like a pink w/ black stripe wire feeds them. Bulbs tested ok. Anyone got any ideas or have a wiring diagram?
 

Dustball

Active member

Equipment
2016 B2650HSDC
Sep 15, 2023
312
188
43
Hudson, WI
Are your grounds good at the bulb sockets?
Do you have 12V out at the headlamp switch?

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xitian

New member

Equipment
B2650 ROPS
Mar 10, 2024
3
2
3
Chattanooga
Are your grounds good at the bulb sockets?
Do you have 12V out at the headlamp switch?

View attachment 124023
You found a diagram where the color codes actually match! Ha. Any chance I can get a copy? The two I found seems to be for an older model and the cab version. Many of the color codes did not match.

I’m thinking it’s the switch or what feeds the switch. I disconnected battery/ pulled fuses and back fed using a battery charger to the pink/black wire in that circuit and both lights worked!

One WSM mentioned a light relay but I don’t think mine has that. Appears to run off just the main keyed relay.

will dig into it some more later.
 

xitian

New member

Equipment
B2650 ROPS
Mar 10, 2024
3
2
3
Chattanooga
Don’t be a dumb-dumb like me and burn up your light switch by tapping LED aux lights of the tail lights without a relay.
 

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