B4000 SE Cab Plus 4 4WD V6-4.0L OHV (2000)
Air Bag Diagnostic Monitor: Description and Operation
Air bag system components are shown in the following illustration.
Air Bag Diagnostic Monitor
The air bag diagnostic monitor performs the following functions:
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signals the inflators to deploy the air bags in the event of a deployable crash.
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monitors the air bag system for faults.
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illuminates the air bag indicator if a fault is detected.
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flashes the air bag indicator to indicate a lamp fault code (LFC) is detected.
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communicates through the data link connector (DLC) the current or historical diagnostic trouble codes (DTCs).
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signals the generic electronic module (GEM) to activate a chime if the air bag indicator is not available and another system fault exists.
NOTE: The safing sensor is internal to the air bag diagnostic monitor and is not serviced separately.
The air bag diagnostic monitor checks the air bag system for possible faults. If a fault is detected while the ignition switch is in the ON position, the air
bag diagnostic monitor will illuminate the air bag indicator located in the instrument cluster.
