Glad to see your making some headway on this. Going back to the diagram I attached the location information for the connectors in the circuit. Unfortunately the connector contain several circuits so it won't be as easy as just disconnecting the connector and going with that. C405 and C139are located outside the coach on the frame. C140 is the connector that leads into the coach thru the firewall. C211 and C213 are both in the dash. Since you stated earlier that you had added some wiring, I would go back and make sure that is OK.
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