Town Car V8-281 4.6L SOHC (1991)
Air Bag Control Module: Description and Operation
The diagnostic monitor contains a microcomputer that monitors the electrical system components and connections. The monitor performs a self-check of
the microcomputer internal circuits and energizes the system readiness indicator during prove out and whenever a fault occurs. System electrical faults
can be detected and translated into different coded indicator displays. If certain faults occur, the system will be disarmed by a firing disarm device built
into the monitor. If a system fault exists and the indicator is malfunctioning, an audible tone will be heard signaling the need for service. On vehicles
equipped with only a driver's side air bag, a jumper is installed near the passenger air bag connector to deactivate the passenger side diagnostic function.