Here's a quick video showing a few uncommon electrical problems unique to Monaco Highline Diesel motorhomes from 2004 to 2009.
I try my best to explain the intellitec "Big Boy" relay and "BCC/BIRD" found in the engine compartment and a few tricks I've learned.
Hope it helps, also I only shorted my lead to ground....it's very difficult to hold a camera and use a 30year old multimeter with leads I should probably replace too.