PT Cruiser L4-2.4L Turbo VIN 8 (2005)
Compass: Service and Repair
Calibration
CAUTION: Do not place any external magnets, such as magnetic roof mount antennas, in the vicinity of the compass. Do not use magnetic tools when
servicing the overhead console.
The electronic compass 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 or out of calibration, perform the following calibration procedure. Also, new
service replacement compass mini-trip computer modules must have their compass calibrated using this procedure. 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.
1. Start the engine. If the compass/temperature data is not currently being displayed, momentarily depress and release the Step push button (this
unlabeled button is located directly behind the overhead console display screen) to step through the display options until you have reached the
compass/temperature display.
2. Depress the Step push button, until "ZONE" appears in the display (approx. 5-10 seconds), then "CAL" will be displayed. Release the Step button
when CAL is displayed. The "CAL" in the display indicates that the compass is in the calibration mode.
3. Drive the vehicle on a level surface, at least fifty feet away from large metal objects and power lines, in all four compass directions, such as
driving around a city block several times or driving in two to three complete circles at a slow speed (approx. 5 mph) until the CAL is no longer
displayed.
4. Finally, set the proper zone/variance for the area you are in, when in manual override mode for calibration, it defaults to zone 8.
NOTE:
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If the "CAL" message remains in the display, either there is excessive magnetism near the compass, or the unit is faulty. Repeat the calibration
procedure at least one more time.
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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.