G 3500 1 Ton Van V8-350 5.7L VIN K TBI (1987)
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.