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1979 Ford Bronco/F100-F350 Warning Lights & Gauges Component Location Diagram
Reference · 1978-1979 BroncoAll 48 service procedures
Cutaway locator for warning lights and gages: ammeter, fuel/water-temp/oil-pressure gages, brake warning, seat belt, 4-wheel-drive indicator, fuel tank selector switch, and sending units on a Ford pickup.
Part of 1978-1979 Ford Bronco Service Procedures
This is page 27 of a Ford service reference document covering warning lights and gauges ("gages") for Ford trucks. The page header lists the systems covered: brake warning, oil pressure, seat belt, and 4-wheel drive indicator lights, plus fuel, water temperature, and oil pressure gauges. The main content is a cutaway isometric illustration of a Ford pickup truck showing the physical locations of components and wiring related to the warning light and gauge circuits. Labeled components include the instrument cluster (containing ammeter, fuel gauge, temperature gauge, oil pressure gauge, speedometer, brake and seat belt indicators), fuel gauge sender unit, fuel tank selector switch, ignition switch, 4-wheel drive indicator light, instrument cluster voltage regulator, oil pressure sending unit, water temperature sending unit, fuse panel, dual brake warning switch, seat belt buzzer, seat buckle switch, and fuel tank selector valve & solenoid. Connector and circuit reference numbers shown include C208, C220, C306, C314, C324, C338, C420, G805, and S502. A note warns that frequent burning out of lamps or fuses indicates a severe voltage problem that should be repaired immediately. This page helps readers locate gauge/warning light senders, switches, and connectors on the truck.
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Frequently asked questions
- Where is the instrument cluster voltage regulator shown on this diagram?
- It is called out near the instrument cluster in the dash area, adjacent to connector C208 and points G805 and S502.
- What gauges and warning lights does this page cover?
- Brake warning, oil pressure, seat belt, and 4-wheel drive indicator lights, plus fuel, water temperature, and oil pressure gauges, along with the ammeter and speedometer in the instrument cluster.
- What connector numbers appear on this warning lights and gauges diagram?
- C208, C220, C306, C314, C324, C338, and C420, plus ground G805 and splice S502.
- What does the page say about frequently burned-out lamps or fuses?
- It notes that frequent burning out of lamps or fuses is an indication of a severe voltage problem and should be repaired immediately.
- Which sending units are located on this diagram?
- The oil pressure sending unit and the water temperature sending unit (in the engine compartment) and the fuel gage sender unit (at the rear near the fuel tank, at connector C306).
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