1997 Ford Aerostar Owner's Manual - Page 195
1997 Ford Aerostar Manual
Page 195 highlights
Trailer Brakes Separate trailer brakes are required on most towed vehicles weighing over 1,500 lb (680 kg). RWARNING Do not connect a trailer's hydraulic brake system directly to your vehicle's brake system. Your vehicle may not have enough braking power and your chances of having a collision greatly increase. Trailer Lamps Make sure your trailer lamps conform to Federal and local regulations. Class I and Class II Trailer Tow electrical wiring provides two circuits (right hand and left hand) to operate trailer stop/turn tail lamps. Each stop/turn circuit will operate one combination stop/turn light bulb (# 1157, 3157, 2357, or 3357) on the trailer. Never add more than one trailer light bulb to one circuit. RWARNING Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire. Driving while you tow Be especially careful when driving while you tow a trailer. Never drive faster than 45 mph (70 km/h) when you tow in hilly country on hot days. Also, anticipate stops so that you can brake gradually. 195