COMPASS
COMPASS : Description
COMPASS
The electronic compass is highly protected from changes in most magnetic fields. However, some large changes in magnetic fields can affect it. Some examples are (but not limited to): high tension power lines, large steel buildings, subways, steel bridges, automatic car washes, large piles of scrap metal, etc.
During normal operation, the Compass Mirror will continuously update the compass calibration to adjust for gradual changes in the vehicle's magnetic "remnant" field. If the vehicle is subjected to high magnetic influences, the compass may appear to indicate false headings, become locked, or appear that it is unable to be calibrated. If this occurs, perform the calibration procedure.
If at any time the compass continually displays the incorrect direction or the reading is erratic or locked, verify the correct zone variance.
SYMPTOM CHART

The ambient temperature display is incorrect
PrecautionAudio antenna
Location of Antenna
Audio unit
Audio unit antenna feeder
In-line connectors M103, M501
Antenna amp.
Window antenna
Satellite radio tuner
Satellite radio antenna feeder
Satellite radio antenna
Window Antenna Repair
ELEMENT CHECK
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Front fog lamp system
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Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT
PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk
or severity of injury to the driver and front passenger for ...