Aisin 81-40LE - Automatic Transmission (European Emissions)

DTC P0722 (European Emissions)

Conditions for Setting the DTC

* This DTC detects no signal of output shaft speed (OSS) sensor circuit for a long period of time. The revolution is 0-10,000 RPM.

* The transmission control module (TCM) detects no pulse of OSS sensor while the TCM detects 178 pulses of input shaft speed (ISS) sensor. This detection 500 times continuously.

* D,2,L range selected

* The input speed is 5 km/h (3 mph) or greater.

* DTCs P0751, P0753, P0756, P0758, and P0717 are not set.

* 25 seconds later after Neutral (N) to Drive (D) shift

Action Taken When the DTC Sets

* TCM will request the illumination of the malfunction indicator lamp (MIL) and store DTC when TCM detects a failure on the first ignition cycle

* No lockup control

* No engine torque reduction control

* No engagement pressure control

* No 4th gear

* No self-learning control

* No prevent reverse gear control

Conditions for Clearing the DTC

* The TCM turns off the MIL when no further failures are detected on the next ignition cycles.

* The scan tool can clear the DTC from the TCM history.

* The TCM clears the DTC from the TCM history memory after 40 consecutive ignition cycles without fault.

* The TCM detects 250 pulses of OSS sensor while failure detection is not achieved.

Cause of Failure

* Wiring harness or connector between OSS sensor and TCM

* OSS sensor

* TCM