P0721 OBD Trouble Code

3 results found

P0721 - Generic
Type Powertrain - Transmission - ISO/SAE Controlled
Description

Output Speed Sensor Circuit Range/Performance
P0721 - Ford
Type Powertrain - Transmission - ISO/SAE Controlled
Description

OSS Sensor Noise Interference Conditions
Cause

Engine running, VSS more than 1 mph and the PCM detected noise interference on the OSS
P0721 - GM
Type Powertrain - Transmission - ISO/SAE Controlled
Description

Vehicle Speed Sensor Circuit Performance Conditions
Cause

Engine running, VSS Noise codes set (parameter status equaled Yes), then the PCM detected, twice per ignition cycle, a VSS input of over 15 mph for 1 second.

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