P0049 - Turbocharger/Supercharger Turbine Overspeed

System Information

Some Turbocharged / Supercharged systems can use a speed sensor to monitor the turbine speed.

Fault Code Explained

The ECM has detected a turbine speed that is above normal limits.

Recommended Tests

This fault could be due to an actual turbine overspeed fault or may be due to a sensor fault indicating an incorrect speed.