Gauges and Warning Devices - Super Duty Series F-250, F-350, F-450, F-550: Description and Operation
Warning Devices - Super Duty Series F-250, F-350, F-450, F-550Warning Devices:
The Generic Electronic Module (GEM) controls the following warnings and chimes:
^ Driver safety belt not fastened (warning lamp and repetitive chime).
^ Key-in-ignition (repetitive chime).
^ Headlamp-on warning (repetitive chime).
^ Door ajar (warning lamp and single tone).
The following four distinct chime rates are used to indicate warning:
^ Seat belt warning chime is one chime per second.
^ Key-in-ignition warning is two chimes per second.
^ Headlamp-on warning is four chimes per second.
^ Door ajar warning is a single chime.