P0720

Test 1:

Tests 2 - 4:

Tests 5 - 7:

Tests 8 - 10:

Tests 11 - 13:

Tests 14 - 15:

SYMPTOM
P0720 - 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
- Output speed sensor ground circuit open
- Output speed sensor ground circuit shorted to ground
- Output speed sensor signal circuit open
- Output speed sensor signal circuit shorted to ground
- Output speed sensor wiring harness
- Park/neutral switch code present
- Park/neutral switch not operating properly
- Output speed sensor wiring harness intermittent defect (no code returned)
- Output speed sensor wiring harness intermittent defect (pin switch code)
- PCM (output speed sensor signal circuit)