Dakota 4WD V8-4.7L VIN N (2000)
This compass is self calibrating which eliminates the need to manually set the compass. When the vehicle is new, the compass may appear erratic
and the CAL symbol will be displayed. After completing three 360 turns in an area free from large metal or metallic objects, the CAL symbol will
turn OFF and the compass will function normally.
Compass Variance
Compass Variance is the difference between Magnetic North and Geographic North. In some areas of the country, the difference between
Magnetic and Geographic North is great enough to cause the compass to give false readings. If this occurs, the compass variance must be set.
To set the variance: Turn the ignition ON and set display to Comp./Temp. While pressing the US/M button, press the STEP button for
approximately five seconds. The "VAR" symbol will light and the last variance zone number will be displayed. Press the US/Metric Button to
select the proper variance zone as shown on the map. Press the Step button to set the new variance zone and resume normal operation.
Enhanced Accident Response (Highline CTM Only)
If the Airbag Control Module (ACM) deploys the airbags, a message is transmitted over the CCD bus to the CTM module to unlock the doors.
The interior lights will be turned on when the vehicle speed message on the CCD bus indicates 0 mph or the message is not present. In addition to
unlocking the doors, the door lock feature will be disabled for a predetermined amount of time following the deployment. Once the ignition key
has been cycled to the "OFF" position, normal operation will resume.
Interior Lighting
The courtesy lights are controlled by the CTM. The door switches are inputs to the CTM and the courtesy lights are outputs. The glove box lamp
and the ash receiver lamp (if equipped) are not controlled by the CTM. They are hardwired to individual switches and fuses. The ignition key halo
lamp is controlled by the CTM and will remain ON for thirty seconds after the door is closed.
The highline CTM also provides for illuminated entry option. If the CTM detects an unlock signal from the RKE transmitter, a door key cylinder
switch input or the door jamb switch input, the interior courtesy lights will be turned on. The illuminated entry function is canceled if the CTM
senses an ignition "ON" condition or the "lock" command from a valid key fob.
If a door is left open or the dome lamp switch is left in the "ON" position for more than fifteen minutes, the CTM will extinguish the lamps to
avoid discharging the battery. If the lamps are turned on by rotation of the headlamp panel dimmer switch, the CTM will not be able to turn them
OFF.
Mechanical Instrument Cluster (MIC)
The MIC is available in 4 different versions. Two of the versions are Canadian clusters. There is a highline and a low line cluster available. The
difference is the addition of a tachometer in the highline. In order to accomplish this, the fuel level gauge is reduced in size and oil pressure gauge
is relocated. The cluster positions it's gauges with bus messages received from the PCM. The odometer is a Liquid Crystal Display (LCD). The
cluster will provide bus bias and the PCM provides termination.
The MIC has an internal diagnostic routing that can be accessed by pushing and holding the trip odometer while rotating the key to the on position.
The cluster will then place all the gauges at their calibration points and will light all the CCD driven tell-tales. It will also light all the segments of
the LCD display for a visual verification check.
The MIC can verify communications with the PCM, ID the module, or change the country code by using options 1, 3, or 9 on the DRB under the
MIC menu. If there are faults found during the diagnostic routine, the cluster will report them on the LCD odometer display.
Power Door Locks
The CTM controls the door lock actuator assemblies to handle locking and unlocking with the key fob or interior switch. There is also a door lock
inhibit feature that prevents power locking of the doors if the ignition is off and the key is in the ignition. Automatic or "rolling locks" are included
as a DRBIII (R) programmable feature. If the vehicle is moving approximately 15 mph and approximately 10 degrees of throttle opening is seen
by the PCM, (the PCM will send this info to the CTM via the CCD bus) indicating acceleration, the CTM will cycle the lock actuators to lock the
doors.
RKE/VTSS
The highline CTM provides for Remote Keyless Entry (RKE) and the Vehicle Theft Security System (VTSS). The base CTM/IEM is not able to
provide these functions. The presence of either of these options dictates that the vehicle be equipped with a highline CTM. The VTSS system
monitors the door ajar switches, and ignition switch to detect unauthorized entry into the vehicle. Once the vehicle is "armed", any one of these
inputs can cause the VTSS system to be tripped. Once tripped, the horn and lights will pulse for 3 minutes and if an attempt is made to start the
engine, it will start and stall if the trigger condition is still present, the lights will continue to flash for an additional 15 minutes the system will
stop pulsing the lights and return to the "armed" state. The cause of the last 4 alarm triggers is stored by the CTM and may be retrieved by the
DRBIII (R). The system may be disarmed by either an unlock command from a valid RKE key fob or by using a key in either door. The door key
cylinders are equipped with disarm switches. There is also a VTSS lamp on the dash that provides information to the driver about the state of the
vehicle theft system.
The RKE system is placed in the programming mode by the DRBIII (R). The system will store up to four key fob codes. Two fobs are supplied
with the truck, additional fobs may be purchased through parts department. The additional fobs must be programmed with the DRBIII (R).
Through the DRBIII (R), erasing and programming of one key fob without deleting the others is possible. If the key fob is stolen, all the fob codes
stored previously may be erased to provide the owner of the vehicle with an extra sense of security.
