Possible causes

– Faulty Speed Sensor
– Speed Sensor harness is open or shorted
– Speed Sensor circuit poor electrical connection

When is the code detected?

The output shaft speed sensor failed to provide a signal to the Transmission Control Module (TCM) upon initial movement of vehicle.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Speedometer improper reading
– Possible shifting problems

P0723 Description

The speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse signal. The pulse signal is sent to the Transmission Control Module (TCM) which converts it into vehicle speed.

P0723 Information for specific makes

P0723 ACURA
P0723 FORD
P0723 HONDA
P0723 ISUZU
P0723 MAZDA