Monitor Scan Tool Data
- Ignition "OFF"
- Connect scan tool and Engine "ON"
- Drive vehicle in gear and monitor "vehicle speed" item on the scan tool.
- Are those "VSS" parameters displayed correctly?
YES
- Fault is intermittent caused by poor contact in Sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
NO
- Go to "TERMINAL AND CONNECTOR INSPECTION " procedure.