[MrBasse]

When we cooked our sidecar we were stumped too, the RSL light didn't flash on the sidecar. We landed a nut on the exposed contacts right by where the RSL plugs in. There were no signs or indications that the sidecar was not functioning aside from the lack of a blinking LED. When the sidecar was opened up here was a component burned out that shut the whole robot down. Take a look inside your sidecar and see if anything is fried, it only takes five minutes to remove the case and it eliminates the "try everything else" method of fixing it.