COMPASS VARIANCE ADJUSTMENT
| CAUTION | Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the Remote Compass Module (RCM) located at the top center of the instrument panel. Do not place any electronic devices (cell phones, laptop computers, Personal Digital Assistants (PDAs), portable DVD players, etc.) on or near the instrument panel as the RCM performance may be affected. Do not use magnetic tools when servicing the RCM. |
Note. If the vehicle is equipped with a Chrysler Uconnect™ GPS (Navigation Radio), the navigation system will provide the compass direction, so the Variance and Calibration menus will be unavailable. The compass performs accurately based upon GPS signals rather than based upon the Earth's magnetic field.
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Note. If the vehicle is taken on long trips into a new variance zone, the compass accuracy may be affected. Compass variance may need to be manually adjusted to the proper variance zone setting to restore accurate compass indications.
Note. The factory default for the compass variance zone setting is zone 8.
Compass variance, also known as magnetic declination, is the difference in angle between magnetic north and geographic north. In some geographic locations, the difference between magnetic and geographic north is great enough to cause the compass to give inaccurate readings. To optimize compass accuracy, the compass variance should be properly set according to the compass variance map zone for the region where the vehicle is being operated.
If the Remote Compass Module (RCM) is being replaced with a new unit, if compass readings appear to be inaccurate or if a manual compass calibration is being performed, check and adjust the variance zone setting using the appropriate procedure.
MANUAL COMPASS CALIBRATION
| CAUTION | Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the Remote Compass Module (RCM) located under the instrument panel center stack hood. Do not place any electronic devices (cell phones, laptop computers, PDAs, portable DVD players, etc), on or near the instrument panel as the RCM performance may be effected. Do not use magnetic tools when servicing the RCM. |
Note. Confirmation that the proper variance zone is programmed, is recommended whenever manual compass calibration is performed, refer to MODULE, COMPASS, STANDARD PROCEDURE for the appropriate procedure.
The electronic compass unit features a self-calibrating design, which simplifies the calibration procedure. This feature automatically updates the compass calibration while the vehicle is being driven. This allows the compass unit to compensate for small changes in the residual magnetism that the vehicle may acquire during normal use. If the compass readings appear to be erratic, perform the following manual calibration procedure.
Note. Do not attempt to calibrate the compass near large metal objects such as other vehicles, large buildings, or bridges; or, near overhead or underground power lines.
Note. If the compass display indicates an inaccurate compass heading or the display is locked up, the RCM (if equipped) may be inoperative and require replacement.
Note. If the wrong direction is still indicated in the compass display, the area selected for calibration may be too close to a strong magnetic field. Repeat the manual calibration procedure in another location.
CALIBRATE THE COMPASS MANUALLY AS FOLLOWS
- Start the engine but leave the vehicle in "PARK".
- Using the U-Connect Touch ™ screen, select MORE from the HOME screen.
- Scroll through the menu, and select SETTINGS .
- Select COMPASS .
- Select PERFORM COMPASS CALIBRATION .
- Slowly drive the vehicle on a level surface, away from large metal objects and power lines, through one or two complete circles not exceeding 8 km/h (5 mph). The compass calibration message will disappear from the display to indicate successful compass calibration.
- Confirm that the correct direction is now indicated by the compass.