many thanks to pay8942!!!!
I pulled the part of the dash with the spedo, tach, and message display, and installed a jumper like you described in the diagram, and my spedo is now working again.
thanks again,
Keith
__________________
when all else fails, get a bigger hammer.
Vehicles:
2005 suburban 1500 4x4
all stock, ex-fire department truck.
1987 Grand Wagoneer