Compass Display

To display the vehicle direction, the CMTC information from a sensor internal to the module. The CMTC is self-calibrating and requires only variance adjustments dependent upon location. The CMTC displays the label CAL whenever the CMTC is in the fast calibration mode. If all 3 of the following conditions listed occur, the vehicle must be demagnetized.

• Compass portion of the display is blank.
• Temperature portion of the display is OK.
• The label CAL is illuminated.

If demagnetizing the vehicle is needed, see COMPASS DEMAGNETIZING  . After demagnetizing, calibrate the compass, see COMPASS CALIBRATION  under ON-VEHICLE SERVICE. To set the variance, see COMPASS VARIATION ADJUSTMENT  under ON-VEHICLE SERVICE. If the compass portion of the display is still blank, replace the CMTC. See COMPUTER MINI-TRIP COMPUTER  under REMOVAL & INSTALLATION.