LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 2005 >> Jimmy Part Time, Automatic >> Repair and Diagnosis >> Electrical >> Instrument Panel System Displays, Gauges And Console >> Repair Instructions >> Electronic Compass Calibration >> Compass Magnetic Variation Adjustment
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Compass Magnetic Variation Adjustment

    Fig 1: Illustrating Magnetic Variation Zones
    GM9020Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Magnetic variation adjustments are required when the compass displays a constant error in heading. Variation is the difference between magnetic north and true north due to geographical location.
  1. Locate your geographic location. Refer to the variation zone map.
  2. Turn ON the ignition, with the engine OFF.
  3. Press the MODE button in order to advance to the COMP/TEMP mode.
  4. With the DIC in the COMP/TEMP mode, simultaneously depress and hold the MODE and US/MET buttons until VAR CAL is displayed, in approximately 5 seconds.
  5. Release both buttons.
  6. Press the US/MET button in order to advance to the proper zone number.
  7. Press the MODE button in order to enter and set the zone number.
scientia non olet · About LEMON Manuals