LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 1992 >> APV >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Gasoline >> Trouble Codes >> Code 24, Vehicle Speed Sensor (VSS) 3.8L >> Notes
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Code 24, Vehicle Speed Sensor (VSS) 3.8L: Notes

Speed sensor, which is a Permanent Magnet (PM) generator, provides control module with vehicle speed information. PM generator, mounted in transmission, produces a pulsing AC voltage signal whenever vehicle speed is greater than 3 MPH. Voltage level and pulses increase with vehicle speed. Control module converts pulsing voltage to MPH, which is used by control module to calculate vehicle adjustments.

NOTE: Test numbers refer to numbers on diagnostic chart.
  1. PM generator only produces a voltage signal if drive wheels are turning greater than 3 MPH.
  2. Before replacing control module, MEM-CAL should be checked for correct application.
scientia non olet · About LEMON Manuals