RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN 6 (1998)
Audible Warning Device Control Module: Description and Operation
Central Timer Module
The Ram Truck utilize a new Central Timer Module (CTM). This system is available in a Base or High line configuration. The Base (IEM) configuration
does not communicate on the CCD bus and will not be addressed in this manual. For concerns about the Base CTM or IEM, please refer to the
appropriate Service Manual. The CTM will handle most of the electronic timing and chime functions for the systems on the truck. For example: the halo
lamp around the key cylinder is timed out after 30 seconds. This is a typical CTM function. The High line CTM provides the following features:
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Remote Keyless Entry (RKE)
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Chime
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Courtesy Lamp controls/Illuminated Entry
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Power Door Locks
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Speed Sensitive Intermittent Wipers
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Enhanced Accident Response
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Vehicle Theft Security System (VTSS)
The new CTM is located on the right side of the steering column behind the kneeblocker on a metal bracket welded to the instrument panel. It contains a
white 18-way and a green 14-way connector.
For additional information on the Central Timer Module, refer to Powertrain Management / Computers and Control Systems / Body Control Module.
See: Relays and Modules - Powertrain Management/Relays and Modules - Computers and Control Systems/Central Timer Module/Description and
Operation
