I took the battery out and cleaned the battery box,there was electrolyte build up all over the bottom and it ate through the paint and some of the metal.I got a better look at the static straps and both are rusted and neither is touching the ground,I placed another grounding wire on top of one but no change.
I will try the horn and strobe next time.
Not sure I follow you on the CAN hi Can Lo,could you please clarify?
I got 2.5 volts when I checked the CAN voltage,not sure about the high or low value.

Thanks for taking the time to reply and for the tips!