On our way to Florida from Michigan and just before we got off the highway for the day our turn signals quit working on our 2005 Ford E450 chassis motorhome. We are towing our car. Haven't checked th...
Yes, the main power to the relays must be good. Try checking for function power at the connector with the ignition switch or of MH running. Test the lights on the toad via added wiring by applying 12 volt to each wire from the battery of the toad using a jumper wire.