1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 174

Roadside Emergencies Hazard Flashers The flashers work whether your vehicle is running or not. The flashers work for up to two hours when the battery is fully charged and in good condition without draining the battery excessively. If the flashers run for longer than two hours or if the battery is not fully charged, the battery can be drained. Fuses, High Current Fuses, Fuse Links, and Circuit Breakers Fuses (conventional and high current) and circuit breakers protect your vehicle's wiring system from overloading. If electrical parts in your vehicle are not working, the system may have been overloaded and blown a fuse or tripped a circuit breaker. Before you replace or repair any electrical parts, check the appropriate fuses (conventional and high current) or circuit breakers. The following charts tell you which fuses or circuit breakers protect the wiring for each electrical part of your vehicle. If a fuse blows or a circuit breaker opens a circuit, all the parts of your vehicle that use that circuit will not work. 175