General Information

Automatic Transaxle
P0721 Output Speed Sensor Circuit Range/Performance - General Information

Component Location





General Description

The OUTPUT SPEED SENSOR outputs waveform signals according to the revolutions of the output shaft of the transmission. The Output Speed Sensor is installed in front of the Parking Gear to determine the Parking Gear rpms by counting the frequency of the pulses. This value, together with the throttle position data, is mainly used to decide the optimum gear position.

DTC Description

The TCM sets this code if the calculated value of the signals is noticeably different from the value calculated, using the Vehicle Speed Sensor output, when the vehicle is running faster than 18.6MPH(30km/h). The TCM will initiate the fail safe function if this code is detected.

DTC Detectiong Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig 1) Low Speed
Fig 2) High Speed