DTC P0720 Output Speed Sensor Circuit: DTC Detecting Condition

DTC DETECTING CONDITION

Item	Detecting Condition & Fail Safe	Possible Cause
DTC Strategy	Speed rationality check	Signal circuit is open or short. Sensor power circuit is open Sensor ground circuit is open Faulty OUTPUT SPEED SENSOR Faulty PCM
Enable Conditions	Vehicle speed is over 19 Mile/h(30 Km/h) in D,3,2,L (A/T range switch) and SP(SPORTS MODE) But do not check the DTC in below condition A/T oil temp sensor voltage > 4.5 V Eng revolution < 2600 RPM
Threshold value	If the output from the output speed sensor is continuously 50% lower than the value calculated by vehicle speed sensor
Diagnostic Time	more than 1 sec
Fail Safe	Locked into 3rd or 2nd gear. Manual shifting is possible (2nd --> 3rd, 3rd --> 2nd)