Voyager L4-2.4L VIN B (1997)
Compass: Adjustments
Fig. 3 Variance Settings
Degausser 6029
SETTING COMPASS
Variance is the difference between magnetic North and geographic North. To adjust the compass variance set the CMTC to Compass/Temperature
mode and press RESET buttons for 5 seconds. The symbol VAR and the current variance zone number will be displayed. Press the STEP button to
select the proper variance zone as shown. Press the US/Metric button to save the new variance zone and normal CMTC operation. If both buttons are
held for 10 seconds instead 5 seconds the CMTC will set variance to 8 and enter the fast calibration mode.
COMPASS CALIBRATION PROCEDURE (FAST METHOD)
When the compass is subjected to excessive magnetic fields, the CMTC automatically enters a fast calibration mode where is tries to compensate for
the large magnetic shifts.
If the compass is inaccurate, appears to be inaccurate and the CAL is not illuminated the fast calibration mode may be manually entered by using the
following procedure.
1. Set the CMTC to Compass/Temperature mode and press the reset button for 10 continuous seconds. Manual activation of the fast calibration is
generally not required.
2. Compass variance sets to the default of 8 after the fast calibration is manually activated.
3. Complete the compass variance setting procedure by referring to the Compass Variance Procedure in this section
4. Drive the vehicle in three 3600 turns in an area free from large metal objects. If the CAL symbol remains lit after completing this step, the roof
panel may need demagnetizing.
DEMAGNETIZING PROCEDURE
A magnetic field can adversely affect the compass. Magnetic interference can magnetize the roof panel. Magnetizing can be caused by placing a
permanent magnet in contact with the roof panel. Example:
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Magnetic Base Antenna
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Magnetic screwdriver
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Audio speakers
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Refrigerator magnets
