After working perfectly for several years, my toad signal lights refuse to light. I rewired with an all new cable, still no work. Here's the mystery; I have signal at every point on my cable and, when I connect my toad to my other car (using the very same cable) everything works perfectly. I have tried everything I know and no success. Any ideas or suggestions would be surely appreciated.

By confirming that all works OK when plugged into a 2nd car, you've pretty much eliminated anything wrong with the wiring from the coach. The problem must be in the receptacle on your toad. Possible corroded or broken pins/sockets?Mike

Check all your grounds. I have found that almost every mysterious electrical problem like this is related to a bad ground. If that doesn't fix it, then that is the limit of my electrical knowledge.

Often, the ground goes bad. If you connected your toad without the tow bar and your ground in the umbilical cord is bad, your lights won't work. You can do a quick check by taking one side of a battery jumper cable and connecting it to a good ground on the toad and one on the RV. If the lights work, you will have narrowed down to the ground in your umbilical cord.

Thanks for the replies. I have checked the ground and everything's good. I have signal at every point down the cable and when I connect to the other car I am using the same cable and all lights work. When i connect to the MH I have tail lights but no signal lights or brake lights. When I disconnect the cable from the toad and check the connector at the end of the cable I have signal. I am mystified.

I am guessing that you are using a four wire, is this correct?Are the lights on the problem child toad using red turn signals or separate?Do you have diodes in rear of toad?Post what style of connectors. 4,6 or 7?Color of lights on MH and toad?

Toad Light Mystery | Good Sam Community

23 Replies

DSDP_Don
Explorer
Feb 16, 2016
Often, the ground goes bad. If you connected your toad without the tow bar and your ground in the umbilical cord is bad, your lights won't work. You can do a quick check by taking one side of a battery jumper cable and connecting it to a good ground on the toad and one on the RV. If the lights work, you will have narrowed down to the ground in your umbilical cord.
msmith1199
Explorer II
Feb 16, 2016
Check all your grounds. I have found that almost every mysterious electrical problem like this is related to a bad ground. If that doesn't fix it, then that is the limit of my electrical knowledge.
mmccray100
Explorer
Feb 16, 2016
By confirming that all works OK when plugged into a 2nd car, you've pretty much eliminated anything wrong with the wiring from the coach. The problem must be in the receptacle on your toad. Possible corroded or broken pins/sockets?

Mike

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Toad Light Mystery

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