MechanicDB
Fault Family System: Powertrain (P-Codes) 8 SAE Codes

Output Shaft Speed Sensor Circuit

Diagnostic & Technical Explanation
Code P0720 (Output Shaft Speed Sensor Circuit) sets when the TCM loses, receives an implausible, or loses direction information from the transmission output shaft speed sensor used for shift scheduling and vehicle speed cross-check. Causes are a damaged reluctor wheel, debris at the sensor tip, a corroded connector, or chafed internal transmission wiring.

These 8 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 8 times.

Codes in this family (8)

CodeDefinitionRepair coverage
P0720Output Shaft Speed Sensor Circuit3 ranked fixes
P0721Output Shaft Speed Sensor Circuit Range/Performance3 ranked fixes
P0722Output Shaft Speed Sensor Circuit No Signal3 ranked fixes
P0723Output Shaft Speed Sensor Circuit Intermittent3 ranked fixes
P077AOutput Shaft Speed Sensor Circuit - Loss of Direction Signal3 ranked fixes
P077BOutput Shaft Speed Sensor Circuit - Direction Error3 ranked fixes
P077COutput Shaft Speed Sensor Circuit Low3 ranked fixes
P077DOutput Shaft Speed Sensor Circuit High3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: