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GMC Truck
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2002
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Savana 1/2 Ton Van V6-4.3L VIN W
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Instrument Panel, Gauges and Warning Indicators
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Speedometer and/or Odometer Inaccurate or Inoperative
Speedometer and/or Odometer Inaccurate or Inoperative
TEST DESCRIPTION
Steps 1-6:
Steps 1-6:
The number below refers to the step number on the diagnostic table.
3.
This step tests for the proper vehicle speed signal from the PCM.