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Home >> Chevrolet >> 1995 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L >> Trouble Code Charts >> Code P0500, VSS Circuit - "S" & "T" Series >> Notes
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Code P0500, VSS Circuit - "S" & "T" Series: Notes

Vehicle Speed Sensor (VSS) is magnetic induction type. Gear teeth pressed on outside of output shaft induce an AC current in sensor as shaft rotates. Signal goes directly to control module. Control module uses pulsed signal to calculate vehicle speed based on time between pulses.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. This determines if code is set as result of a hard failure or an intermittent.
  2. This checks wiring, connections and control module and VSS.
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