Console: Description and Operation
SYSTEM OPERATIONCompass Mini Trip Computer (CMTC)
The Compass mini-trip computer (CMTC) system is located in the overhead console. CMTC consists of an electronic control module with a vacuum fluorescent display (VFD) and function switches. The CMTC consists of an electronic module that displays compass, trip computer and temperature features. Actuating the STEP switch will cause the CMTC to change mode of operation when the ignition is ON.
Examples:
- Compass/Temperature
- Trip odometer (ODO)
- Average miles per gallon (ECO)
- Instant miles per gallon (ECO)
- Distance to empty (DTE)
- Elapsed time (ET)
- Off
The CMTC module in the overhead console has three buttons used to select various functions. The CMTC selector buttons will not operate until the ignition is in the RUN position.
When the ignition switch is first turned to the Run position the CMTC display:
- Blanks momentarily
- All segments of the VFD will light for one second
- Blanks momentarily
- Returns to the last mode setting selected before the ignition was last switched OFF.
Thermometer
Engine temperature can increase the displayed temperature. The CMTC is designed to dampen temperature readings when the vehicle is moving at a rate slower than 18 miles per hour.
The outside temperature is measured from a sensor mounted in the front of the vehicle. If the temperature is more than 55 °C (131 °F) or the temperature sending line is shorted to ground, the temperature display should read SC. If the temperature is less than -40 °C (-40 °F), or the sending line is an open circuit, the display should read 0C.
The CMTC will not allow the temperature reading to increase when the vehicle is not moving.
Compass
The CMTC is self calibrating and usually requires no adjustment. The compass will continuously perform a slow calibration to compensate for small magnetic variations common to any automobile. Uncommon magnetic shifts may be caused by items such as magnetic base antennas, which can permanently alter the magnetic field of the vehicle roof panel. If excessive magnetic field continues for 5 minutes, the compass heading will go blank and only the CAL symbol will illuminate. When this occurs, the vehicle roof panel may require demagnetizing. Refer to the demagnetizing procedure.
Moderate magnetic shifts may, on very rare occasions, cause the compass heading to display only one or two of the eight possible headings. Although the compass will eventually compensate for this shift, it could take several ignition cycles. The compensation process can be expedited by manually activating the fast calibration routine. Refer to the fast calibrating procedure. This procedure may be performed anytime that the compass appears to be inaccurate.
If the calibration data stored in the body control module is not received, the compass will read only NE North-East. The CMTC is self calibrating and requires no adjusting. The word CAL is displayed to show that the compass is in calibration mode. CAL will turn off after the vehicle has gone through three complete circles without stopping, in an area free of magnetic disturbance. If module displays temperature while the compass is blank, turn off ignition and run self diagnostics then demagnetize the vehicle. After demagnetizing, check compass calibration number, refer to Self Diagnostic Test. If greater than 15, demagnetize again until reading is less than 15. If compass still goes blank after demagnetizing then check internal diagnostics and demagnetize.
Universal Transmitter Location:

Universal Transmitter
The Universal Transmitter, replaces the hand held remote controls that open the garage door, motorized gates, or home lighting in/outside the home. This device memorizes the activator codes for up to three remote controlled devices. It triggers those devices at the push of a button, located in a unit permanently mounted in your overhead console (if equipped).
The transmitter operates off your vehicle's battery and charging system; no batteries are needed.
The Universal Transmitter incorporates a Rolling Code technology (random digital code signals from the remote transmitter) within the transmitter module. This is done so, as an added security measure.
Features of the Universal Transmitter are:
- Can be used with most other Radio Frequency (RF) activated devices.
- Individual channels can be trained.
- Stores transmitter data in permanent memory - retraining is not required even if the battery dies or is disconnected.
To operate, simply press the appropriate button on the Universal Transmitter. The red LED will light up while the signal is being transmitted.
NOTE: For security reasons, you are able to erase the trained frequencies.