Compass: Testing and Inspection
PRE-CHECK1. SELECTING COMPASS DISPLAY MODE
a. The Comp switch allows you to select the Display or Non-display mode of the compass.
2. SETTING ZONE
a. Deviation between the "magnetic north" and "actual north" differs depending on the location. Therefore, adjustment of the magnetism is required. Since the magnetic condition differs according to the area where the vehicle is used, it is necessary for each user to set the zone (refer to "Compass Zone Map"). The zone setting can be changed using the Comp switch of the inner mirror.
3. PERFORMING CALIBRATION
a. Because each vehicle has its own magnetic field, calibration should be performed for each vehicle. This compass function is used when storing the record of the vehicle's magnetic field.
4. WHEN COMPASS MAGNETIZED:
a. A compass could be magnetized during shipping by vessels or freight cars. Before delivery, make sure to perform calibration and ensure that calibration is done properly. If calibration cannot be completed despite driving the vehicle in a circle several times, the vehicle's magnetic field may be interfering with the calibration. Demagnetize the vehicle using a demagnetizer and perform calibration again.
5. SETTING COMPASS
6. ZONE SETTING MODE
a. Pressing the Comp switch for 3 seconds in the normal mode will activate the zone setting mode. A number (1 to 15) is displayed on the compass display.
HINT: In the initial state, "8" is displayed.
b. The displayed number increases +1 every time the Comp switch is pressed. On the map, check the number for the area where the vehicle will be used and set the zone number.
c. Leave it untouched for several seconds after setting and check that the compass display shows an azimuthal direction (N, NE, E, SE, S, SW, W or NW) or "C".
7. CALIBRATION SETTING MODE
a. Pressing the Comp switch for 6 seconds in the normal mode will activate calibration setting mode.
b. Drive the vehicle at a speed of 8 km/h (5 mph) or less in the circular direction.
c. Driving the vehicle in a circle 1 to 3 times will display the azimuthal direction on the display, completing the calibration.
HINT: Once calibration is complete, it is not necessary to perform the above procedures unless the magnetic field strength is drastically changed. If this happens, the azimuthal display will be changed to "C".