Traveler Display Functions

Using the STEP button will change the CMTC/ EVIC between modes of operation and display the appropriate information according to data received from the PCI Bus.

COMPASS/TEMPERATURE 

The CMTC/EVIC simultaneously displays the compass reading and the outside temperature. Outside temperature information is received via the PCI bus from the PCM.

The CMTC/EVIC module internally senses and calculates the compass direction.

COMPASS OPERATION 

Upon ignition on, if the calibration information stored in the CMTC/EVIC memory is within the normal range, the CMTC/EVIC will perform in slow Auto-Cal mode. In slow Auto-Cal mode, the CMTC/EVIC continuously compensates for the slowly changing magnetic field of the vehicle. The compass module detects changes in the vehicle magnetism and makes appropriate internal corrections to ensure proper displayed direction.

However, if the calibration information stored in the CMTC/EVIC memory is not within the normal range at ignition on, the CMTC/EVIC will enter fast Auto-Cal. CAL is displayed along with the temperature.

Auto activation of the fast Auto-Cal mode will also occur when the CMTC/EVIC is subjected to high magnetic field strength levels, which cause all compass readings to be erroneous for a continuous period of five (5) minutes. During fast Auto-Cal, CAL will be displayed along with the temperature.

Fast Auto-Cal can also be performed manually, by pressing and holding the RESET button for 10 seconds during the Compass/Temperature display mode.