2004 Mercury Mountaineer Owner's Manual - Page 119

Seating and Safety Restraints The SRS consists of: • driver and passenger air bag modules (which include the inflators and air bags). • Safety canopy system (if equipped). Refer to Safety canopy system later in this chapter. • one or more impact and safing sensors. • a readiness light and tone. • diagnostic module. • and the electrical wiring which connects the components. The diagnostic module monitors its own internal circuits and the supplemental air bag electrical system wiring (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 Air bag readiness section in the Instrument Cluster chapter. Routine maintenance of the air bag is not required. A difficulty with the system is indicated by one or more of the following: • The readiness light will either flash or stay lit. • The readiness light will not illuminate immediately after ignition is turned on. • A series of five beeps will be heard. The tone pattern will repeat periodically until the problem and/or light are repaired. If any of these things happen, even intermittently, have the SRS serviced at your dealership or by a qualified technician immediately. Unless serviced, the system may not function properly in the event of a collision. 119 2004 Mountaineer (mnt) Owners Guide (post-2002-fmt) USA English (fus)