P0720

SYMPTOM
P0720 - OUTPUT SPEED SENSOR ERROR

WHEN MONITORED
The transmission gear ratio is monitored continuously while the transmission is in gear.

SET CONDITION
If there is an excessive change in output RPM in any gear.

POSSIBLE CAUSES
- INTERMITTENT WIRING AND CONNECTORS
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT OPEN
- SPEED SENSOR GROUND CIRCUIT OPEN
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO GROUND
- OUTPUT SPEED SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
- SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
- OUTPUT SPEED SENSOR ERROR
- TCM - OUTPUT SPEED SENSOR