RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN C (2002)
Enhanced Accident Response - The high-line/ premium CTM provides an optional enhanced accident response feature. This is a programmable feature.
Heated Seats - The premium CTM controls the optional heated seat system by controlling the operation of the heated seat relay.
Illuminated Entry - The high-line/premium CTM provides a timed illuminated entry feature.
Intermittent Wipe Control - All versions of the CTM provide control of the intermittent wipe delay, and wipe-after-wash features.
Panic Mode - The high-line/premium CTM provides support for the optional RKE system panic mode features.
Power Lock Control - The high-line/premium CTM provides the optional power lock system features, including support for the automatic door lock
and door lock inhibit modes.
Programmable Features - The high-line/premium CTM provides support for certain programmable features.
Remote Keyless Entry - The high-line/premium CTM provides the optional Remote Keyless Entry (RKE) system features, including support for the
RKE Lock (with optional horn chirp), Unlock, Panic, and illuminated entry modes, as well as the ability to be programmed to recognize up to four RKE
transmitters. The RKE horn chirp is a programmable feature.
Remote Radio Switch Interface - The high-line/premium CTM monitors and transmits the status of the optional remote radio switches.
Speed Sensitive Intermittent Wipe Control - The high-line/premium CTM provides the speed sensitive intermittent wipe feature.
Vehicle Theft Alarm - The high-line/premium CTM provides control of the optional Vehicle Theft Alarm features, including support for the central
locking/unlocking mode.
The premium CTM is used only on vehicles equipped with the heated seat feature. The premium CTM will control the above functions and, in addition,
controls the heated seat relay. The CTM is mounted to a bracket welded to the instrument panel inboard of the steering column, behind the kneeblocker.
The connectors are a white 18-way and a green 14-way.
Diagnostics
The CTM is fully addressable with the DRB III (R) and it is the recommended method for diagnosis. The CTM reports 6 Diagnostic Trouble Codes. All
of the inputs to the CTM can be read with the DRB III (R) and the outputs can be actuated. If the inputs are OK and the outputs can be cycled with the
DRB III (R), the problem is usually the Central Timer Module.
Hard wired circuitry connects the CTM to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are
routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system
and to the CTM through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal
connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector
repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors,
splices and grounds.
All versions of the CTM for this model are serviced only as a complete unit. Many of the electronic features in the vehicle controlled or supported by the
high-line or premium versions of the CTM are programmable using the DRB III scan tool. However, if any of the CTM hardware components are
damaged or faulty, the entire CTM unit must be replaced. The base version of the CTM and the hard wired inputs or outputs of all CTM versions can be
diagnosed using conventional diagnostic tools and methods; however, for diagnosis of the high-line or premium versions of the CTM or the CCD data
bus, the use of a DRBIII scan tool is required. Refer to the appropriate diagnostic information.
The Central Timer Module (CTM) is designed to control and integrate many of the electronic features and functions of the vehicle. The base version of
the CTM monitors only hard wired inputs and responds with the proper hard wired outputs. The microprocessor-based high-line/premium version of the
CTM monitors many hard wired switch and sensor inputs as well as those resources it shares with other electronic modules in the vehicle through its
communication over the Chrysler Collision Detection (CCD) data bus network. The internal programming and all of these inputs allow the
high-line/premium CTM microprocessor to determine the tasks it needs to perform and their priorities, as well as both the standard and optional features
that it should provide. The high-line/premium CTM programming then performs those tasks and provides those features through both CCD data bus
communication with other electronic modules and through hard wired outputs to a number of circuits, relays, and actuators. These outputs allow the
high-line/premium CTM the ability to control numerous accessory systems in the vehicle.
All versions of the CTM operate on battery current received through fuses in the Junction Block (JB) on a non-switched fused B(+) circuit, a fused
ignition switch output (st-run) circuit (base version only), and a fused ignition switch output (run-acc) circuit (high-line/premium version only). This
arrangement allows the CTM to provide some features regardless of the ignition switch position, while other features will operate only with the ignition
switch in the Accessory ON, and/or Start positions. All versions of the CTM are grounded through their connector and take out of the instrument panel
wire harness. The high- line/premium CTM has another ground received through a second connector and take out of the instrument panel wire harness.
The first ground circuit receives ground through a take out with an eyelet terminal connector of the instrument panel wire harness that is secured by a nut
to a ground stud located on the left instrument panel end bracket, while the second ground circuit (high-line/premium version only) receives ground
