C 2500 3/4 Ton Pickup 2WD L6-250 4.1L VIN D 2-bbl (1984)
Cruise Control Switch: Testing and Inspection
Off/On/Resume/Accel Switch Test
Fig. 15 On/Off/Resume/Accel switch diagnostic chart. Custom Cruise III
Refer to Fig. 15 to check Off/On/Resume/Accel switch and related wiring.