Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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Compass: Testing and Inspection
Electronic Compass Module Programming and SetupThe electronic compass module requires a calibration after the module is replaced, repaired, or as required for proper module operation. Refer to
Compass Calibration and Magnetic Variance (without OnStar Only)
Compass Calibration and Magnetic Variance (without OnStar Only).