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Home >> GMC >> 1982 >> Magnavan Automatic Trans, Trans Mfr CD 400/M40 >> Repair and Diagnosis (Single Page) >> General Information >> Maintenance Reminder Light (Reset Procedures) >> Tire Pressure Monitor System Reminder >> TPMS Reminder Reset - Procedure 17 >> Using Scan Tool
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Using Scan Tool

  1. Turn ignition switch to OFF position.
  2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
  3. Connect scan tool. Turn ignition ON with engine OFF.
  4. Using scan tool, select "SPECIAL FUNCTIONS".
  5. Select "TIRE PRESSURE RESET".
  6. Press RESET soft key. A "TIRE PRESSURE NORMAL" message should appear on display.
  7. If necessary, use scan tool to clear any TPM Diagnostic Trouble Codes (DTCs).
  8. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the following speed ranges to complete calibration process:
    • 15-40 mph (24-64 km/h).
    • 40-70 mph (64-113 km/h).
    • 70-90 mph (113-145 km/h).
    NOTE: The EBCM learns tire pressure calibration for each speed range independently. In Monitor Mode 1, EBCM has only partially learned tire pressure calibration for speed range and has limited detection capability for a tire pressure condition. In Monitor Mode 2, EBCM has fully learned tire pressure calibration for speed range and has full detection capability for a tire pressure condition.
    NOTE: Learning process does not need to be completed during a single trip.
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