Have a 96 2500K with the 6.6  Turbo Diesel.  The motor will not start, "wait to
start" light does not come on, but the fuel pump does pump-up.  The blower fan
will not come on when key is sent to run.  Any ideas?

Have check the batterys, cleaned the battery termals, fues checked ok and
reseated all relays in the engine bay. I suspect something electrical has gone
wrong as the blower fan does not come on nor the "wait to start" indicator
lamp. Radio does play and some of the warning lights (such as water in fuel
lamp and daytime running lights indicator.)  Has been sitting for a week
outside.  

Right before this happen, started it up, but the blower would not come on and
the gear shift indicator did not light.  Drove it around the block and parked
it, didn't trust it for the trip that day.

She has 118K on it, mostly highway non-hauling miles.  Have owned since new.

It does have AC, cruise, am/fm radio, automatic and normal complment of lights,
bone stock.

Any ideas?  Don't want to be taken at the dealership when it gets towend in.

Thanks.