Operation CHARM: Car repair manuals for everyone.

Glossary

GLOSSARY

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 Supplemental Restraint System (SRS)
Deactivate the SRS means to carry out a deactivation procedure.

Depower the SRS
Depower the SRS 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 columns, load limiting retractor, adaptive tether, adaptive vent, if equipped) and associated circuits.

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.

Prove Out the SRS
Prove out the SRS means to turn the ignition switch from the OFF to the ON position and visually monitor the air bag warning indicator with all SRS components connected. The air bag warning indicator will light continuously for approximately 6 seconds and then turn off. If an SRS fault is present, the air bag warning indicator will either fail to light or remain lit continuously. The air bag warning indicator may not illuminate until approximately 30 seconds after the ignition switch has been turned from the OFF to the ON position. This is the time required for the RCM to complete the testing of the SRS. If the air bag warning indicator is inoperative and an SRS fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag warning indicator will need to be repaired before diagnosis can continue.

Reactivate the SRS
Reactivate the SRS means to carry out the reactivation procedure.

Reconnect the SRS
Reconnect the SRS means to reconnect all system components.

Repower the SRS
Repower the SRS means, turn the ignition ON, install the RCM fuse and connect the battery ground cable.

Secondary 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 one-second ON and one-second OFF. The tone pattern will repeat periodically until the problem and warning light are repaired.

Squib
A squib (igniter) is a device designed to convert electrical energy to the heat energy necessary to deploy a pyrotechnic restraints system device.

Verify the System
Verify the system means to prove out the SRS with all restraint system components in place.

Supplemental Restraint System (SRS) Reconnect Checklist
The checklist below should be completed following diagnosis or repair of any air bag system concern:
- All in-seat harness connectors connected?
- All air bag modules connected?
- Occupant classification system module (OCSM) connected?
- All OCS weight sensor bolts connected?
- Safety canopy modules connected?
- Safety belt pretensioner connectors connected?
- All sensors (front and side impact sensors) connected?
- Restraints control module (RCM) connected?
- RCM fuse installed?
- Battery connected?