Glossary
GLOSSARYSecondary Air Bag Warning
The secondary air bag warning is an audible fault format that consists of 5 sets of 5 tone bursts, with each set of 5 tone bursts separated by a 5-second quiet period. One tone burst cycle will consist of 1-second ON and 1-second OFF. This series of 5 activations is repeated every 30 seconds.
Air Bag/Pretensioner Restraint System Diagnostic Tools
Air bag/pretensioner restraint system diagnostic tools are used to simulate the equivalent resistance of an air bag module or safety belt pretensioner during certain diagnostic procedures.
Disconnect the Component
Disconnect the component means to disconnect the component vehicle harness connector, not to remove the component. Do not reconnect a disconnected component unless instructed to do so.
Deactivate the System
Deactivate the system means to carry out a deactivation procedure.
Depower the System
Depower the system means to disconnect the battery and remove the restraints control module (RCM) fuse.
Deployment Loop
The deployment loop is made up of the RCM, deployable device, air bag(s), safety belt pretensioners, (safety canopies, deployable steering column, load limiting retractor, adaptive tether, adaptive vent if equipped) and associated circuits.
Prove Out the System
Prove out the system means to turn the ignition switch from the OFF to the ON position, and to visually monitor the air bag warning indicator with the air bag modules and safety belt pretensioners or restraint system diagnostic tools installed.
Reactivate the System
Reactivate the system means to carry out the reactivation procedure.
Repower the System
Repower the system means to remove any restraint system diagnostic tools that may have been installed, turn the ignition ON, install the RCM fuse, and connect the battery ground cable.
Reconnect the System
Reconnect the system means to reconnect all system components. Refer to Air Bag System Reconnect Checklist.
Squib
A squib (igniter) is a device designed to convert electrical energy to the heat energy necessary to deploy a pyrotechnic restraints system device.
Install a New Component
Install a new component means to remove the existing component and install a new authorized part obtained from Ford Customer Service Division.
Verify the System
Verify the system means to prove out the system with restraint system diagnostic tools installed in place of the SRS components.
Air Bag Reconnect Checklist
The checklist below should be completed following diagnosis or repair of any air bag system concern:
- Is the front severity crash sensor connected and mounted to the vehicle?
- All restraint system diagnostic tools removed?
- All air bag modules connected?
- Is the air bag connector at the base of the steering column connected?
- Safety belt pretensioner connectors connected?
- Restraints control module (RCM) connected?
- RCM fuse installed?
- Battery connected?