Driver Information Center (DIC) Description and Operation: Compass
The compass uses two magnetic field sensors for compass direction. One sensor is for the north and south, the other for the east and west. For the compass variance and calibration information refer to Compass Calibration and Magnetic Variance (Driver Information Center (DIC)) , Compass Calibration and Magnetic Variance (Mirror) . The DIC displays the compass information on the right most 2 characters of the first DIC line when the compass is an option on the vehicle. When corresponding to the true north radial degrees, the compass displays the following directions.
| Radial Degree (True North) | Compass Direction |
|---|---|
| 337.5 to 22.5 | N |
| 22.5 to 67.5 | NE |
| 67.5 to 112.5 | E |
| 112.5 to 157.5 | SE |
| 157.5 to 202.5 | S |
| 247.5 to 292.5 | W |
Your compass may be located in the inside rear view mirror. The inside rear view mirror (ISRVM) uses two magnetic field sensors for compass direction. One sensor is for the north and south, the other is for the east and west. The ISRVM provides power and a low reference to each sensor. As the vehicle travels with or against the earths magnetic pull, there is a change in voltage on both sensors. As a result of the change in voltage, the mirror changes the heading on the compass display. For compass variance and calibration information, refer to Compass Calibration and Magnetic Variance (Driver Information Center (DIC)) , Compass Calibration and Magnetic Variance (Mirror) .