Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.