General Information
Automatic Transaxle
P0721 Output Speed Sensor Circuit Range/Performance - General Information
Component Location
General Description
The Input/output speed sensor is one body and installed in transmission. It's used hall sensor of an electric current type, and current is changed by magnetic variation. Each sensors are composite 2 pins and PCM/TCM supplied power to sensor and controlled by PCM/TCM.
DTC Description
This DTC is set this code if vehicle speed is above 20km/h(12.4MPH) but input speed signal is not detected by PCM/TCM.
DTC Detecting Condition
Specification
Diagnostic Circuit Diagram
Signal Waveform & Data
Fig 1) Input/Output speed sensor at low speed
Fig 2) Input/Output speed sensor at high speed