P0500 No Vehicle Speed Sensor Signal

SYMPTOM
P-0500 NO VEHICLE SPEED SENSOR SIGNAL

WHEN MONITORED
With engine temperature greater than 104 degrees F, MAP approximately 350 torr, (or MAP vacuum 15 to 16"), and engine speed between 1400 and 3000 RPM.

SET CONDITION
No signal from the vehicle speed sensor for more than 15 seconds on two (2) consecutive trips and must be in the MAP and engine coolant temp window.

POSSIBLE CAUSES
- VSS connector 5-volt supply circuit open
- VSS speedometer pinion gear defective
- Vehicle speed sensor ground circuit open
- Vehicle speed sensor signal circuit open
- Vehicle speed sensor signal wiring harness observable defect
- VSS gnd circuit shorted to ground
- VSS signal circuit shorted to ground
- PCM defective (no vehicle speed sensor signal)
- Vehicle speed sensor defective
- VSS adapter not positioned and seated properly
- Inactive trouble code