Compass: Adjustments

CALIBRATION
1. Depress and hold down both the compass/temp button and the U.S./Metric button.
2. The display will go off and after 5 seconds the VAR light will come on. Continue to hold both buttons down.
3. In approximately 10 seconds, the CAL light will come on. Release both buttons and the display will show the heading and outside temperature.
4. Drive the vehicle one to three complete circles. The CAL light will then go off, indicating the compass is calibrated.

VARIANCE
Variance is the difference between magnetic North and geographic North. In some areas the difference between magnetic and geographic North is great enough to cause the compass to give false readings. If this occurs, the variance must be set.

Variance Settings:

To set the variance, depress and hold down both the Compass/temp button and the U.S./Metric button. The display will go off and after 5 seconds the VAR light will come on. Release both buttons, using the zone map (FIG.1) to find your geographic location, note the zone which you are in. Press the U.S./Metric until the zone number appears on the display. press the compass/temp button to enter your zone number. Do not attach magnetic devices, such as magnetic CB antennas to the vehicle roof, as they can cause the compass to give false readings. If it is necessary to Degauss the vehicle follow the procedures in T.S.B. 08-14-87 supplement A.