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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1831 (Instrument Panel System Displays And Gauges) >> Diagnostic Information and Procedures >> Speedometer and/or Odometer Inaccurate or Inoperative >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, raise the vehicles drive wheels.
  2. Engine ON, transmission in drive, verify the scan tool Vehicle Speed parameter matches the speedometer display.
    • If the Vehicle Speed parameter does not match the speedometer display, replace the IPC.
  3. Verify that the odometer is operating properly.
    • If the odometer is not operating properly, replace the IPC.
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