1997 Ford F150 Owner Guide 1st Printing - Page 69

Seating and safety restraints If the air bag is inflated, the air bag will not function again and must be replaced immediately. If the air bag is not replaced, the unrepaired area will increase the risk of injury in a collision. The SRS consists of: • driver and passenger air bag modules (which include the inflators and air bags), • one or more impact and safing sensors, • a readiness light and tone • and the electrical wiring which connects the components. The diagnostic module monitors its own internal circuits and the supplemental air bag electrical system readiness (including the impact sensors), the system wiring, the air bag system readiness light, the air bag back up power and the air bag ignitors. Determining if the system is operational The SRS uses a readiness light in the instrument cluster or a tone to indicate the condition of the system. Refer to the Air bag readiness section in the Instrumentation chapter. Routine maintenance of the air bag is not required. 70