Workhorse tail lamp issue

[RedGrizz]

Hello I am new to the forums. We just sold our 93 Bounder and purchased a 2005 Winnebago Voyage. I have an issue with the brake/turn lamps on our coach. Here is whats happening.....
When you hit the brake pedal both the brake lamps and amber turn lamps light up on the coach on both sides. If you hit the turn signal on either side it works but the other side amber lamp stays lit and vise versa. I also notice that the ground wire in the 6 way trailer connector has 12V when you hit the brakes or turn signals. Im thinking since there are separate turn/brake lamps that there must be a converter wired in the factory harness somewhere to convert the trailer wiring but cannot find it.
Anyone experience this or have knowledge of the system? The trailer plug wiring looks good at the plug.
Thanks for your help!
RG

[DriVer]

Originally Posted by RedGrizz

Thanks for your help!

RG, Have you physically pulled the lenses and checked the orientation of the bulbs in the sockets and to see whether or not the bulbs are still good? It is rarely experienced that there are problems with the signal and tail lights BUT we do occasionally have Gremlins.

[RedGrizz]

DriVer
Yes I actually replaced all the bulbs in the rear and one tail lamp assembly. Thanks for the reply.

[RV Wizard]

Be sure to check the front turn and running bulbs and connections as well. I have run across bad connections and bulbs to give this scenario. It also sounds like you may have a bad ground on the 7 wire receptacle. If not then I would suspect the converter. You may have to call Winnebago as to its location on your model.

[DriVer]

Originally Posted by RedGrizz

DriVer
Yes I actually replaced all the bulbs in the rear and one tail lamp assembly. Thanks for the reply.

Are the scokets clean from contamination? Purpose assure a good ground from the frame of the bulb. Make use that the plate that the contacts sit on is under tesion and that the contacts are not excessively pitted.

[speed racer]

WORKHORSE TAIL LIGHT ISSUE. I didn't kow Workhorse made tail lights.

[wa8yxm]

I also notice that the ground wire in the 6 way trailer connector has 12V when you hit the brakes or turn signals.

That is the key, right there, that is the key

you have a bad ground. on the motor home end of the flat 4 connnector

The ground lead is the "Odd" pin on a flat four

Trace the ground wire and see if there is a place where you can ground it to the chassis.

Is this a workhorse issue or a coach builder issue? I don't know.

NOTE 2: I think that ground wire should be at least 10ga, not the hair thin stuff they use on those connectors (That's a Barjan issue, not a Workhorse and not a Chassis builder, but whomever made the blasted connector) I would seriously consider a upgrade on the ground wire.