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Home >> Cadillac >> 1995 >> DeVille Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Pcm Code Charts >> Code P024, Vehicle Speed Sensor (VSS) Circuit Problem >> Test Conditions

Test Conditions

Codes P021, P022, P026 and P027 not set. Transaxle in Drive or Reverse. Brakes not applied, throttle position switch open, throttle angle at 17.3 degrees or greater, and engine speed at 1400 RPM or greater.