P0720 Low Output Speed Sensor RPM Above 15 Mph

SYMPTOM
P-0720 LOW OUTPUT SPEED SENSOR RPM ABOVE 15 MPH

WHEN MONITORED
Continuously with the key on, engine running, and gear selector not in park or neutral.

SET CONDITION
This code is set if the vehicle speed (as determined from the vehicle speed sensor), is above 15 MPH, and the output shaft speed is below 60 RPM for 2.6 seconds.

POSSIBLE CAUSES
- Output speed sensor defective
- Output speed sensor ground circuit open
- Output speed sensor ground circuit short to ground
- Output speed sensor signal circuit open
- Output speed sensor signal circuit short to ground
- Park/neutral switch code present
- PCM defective (output speed sensor signal ckt def)
- Powertrain control module defective (code returned)
- OSS harness intermittent defect