F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
Key Reminder Switch: Description and Operation
The Generic Electronic Module (GEM) and Central Timer Module (CTM) control the following warnings and chimes:
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Key-in-ignition (repetitive chime).
The following distinct chime rates are used to indicate warning:
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Key-in-ignition warning is two chimes per second.
Key-In-Ignition Warning Chime
The key-in-ignition chime warns that the key is still in the ignition when the driver door is ajar. The key-in-ignition warning chime will sound when:
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GEM: Driver door is ajar, the ignition switch is in the OFF/LOCK or ACC position and the key is in the ignition.
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CTM: Driver door is ajar, the ignition switch is in the OFF/LOCK, ACC or RUN position and the key is in the ignition.
The key-in-ignition warning chime will stop sounding when:
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The driver door is closed.
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The key is removed from the ignition.
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GEM: Ignition switch is switched to the RUN position.
