B350 1 Ton Van V8-360 5.9L VIN W 4-bbl (1988)
Speed Control Switch: Testing and Inspection
Fig. 6 Speed Control Continuity Chart. 1988-90 Rear Wheel Drive Models
Fig. 7 Speed Control Continuity Chart. 1988-90 Front Wheel Drive Models
Fig. 8 Speed Control Connector Terminal Identification