Ford Expedition 2007 Manual page 151

Several air bag system components get hot after inflation. Do not
touch them after inflation.
If the airbag has deployed, the airbag will not function again
and must be replaced immediately. If the airbag is not
replaced, the unrepaired area will increase the risk of injury in a
collision.
The SRS consists of:
• driver and passenger airbag modules (which include the inflators and
airbags),
• one or more impact and safing sensors and diagnostic monitor (RCM),
• a readiness light and tone
• the electrical wiring which connects the components.
The RCM (restraints control module) monitors its own internal circuits
and the supplemental airbag electrical system wiring (including the
impact sensors, the system wiring, the airbag system readiness light, the
airbag back up power and the airbag 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 Airbag readiness section
in the Instrument Cluster chapter. Routine maintenance of the airbag 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 an authorized dealer immediately. Unless serviced, the system may not
function properly in the event of a collision.
2007 Expedition (exd)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
151