I have a Module "sandwich" also... Had to use it once already, Truck just died on the way home from a truck show. Truck was not even up to temp and complete loss of ignition.
Rolled to the side of the road, move module plugs from module "A" to "B"....went home....
1986 F-150 Flareside 4x4, 351, 4-v, ZF5 speed. AC, Cruise, Tilt, Slider, Digital clock, Radio, Lariat seat, Pwr doors/locks