Calibrate The Compass Manually As Follows:
- Start the engine but leave the vehicle in "PARK".
- Depress the COMPASS/TEMP push button for approximately 10 seconds until the "VAR" menu is displayed in the Compass Mini Trip Computer (CMTC) display (23). The current variance value will also be displayed.
- Once in the "VAR" menu depress the COMPASS/TEMP push button for approximately 10 seconds until the "CAL" message is displayed.
- To complete the compass calibration, drive the vehicle in one or more complete 360 degree circles under 5 mph (8 km/h) in an area free of large metal objects such as other vehicles, large buildings, or bridges; or, near overhead or underground power lines, until the "CAL" indicator turns off. The compass will now function normally.
If the compass display indicates an inaccurate compass heading, or the display is locked up, or dashes "- -" are displayed the RCM may be inoperative or the vehicle may need to be demagnetized. Perform the Compass Demagnetizing Procedure prior to performing any system diagnosis. Refer to MODULE, COMPASS AND MINI-TRIP COMPUTER, STANDARD PROCEDURE .
If the "CAL" message remains in the display or if the compass heading is inaccurate following the calibration procedure and there are no internal compass faults, either there is excessive magnetism near the compass, or the unit is inoperative. Repeat the calibration procedure at least one more time prior to performing any system diagnosis.
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 calibration procedure in another location.