P0049critical severityPowertrain
Turbo/Supercharger Turbine Overspeed
on 2011 Cadillac Escalade 6.2L V8 · 4WD
What this code means
The PCM detected the turbocharger turbine is spinning faster than the maximum allowed speed.
Symptoms
- Check Engine Light
- Whining noise from turbo
- Excessive boost
- Possible engine damage
Common causes
- Wastegate stuck closed
- Boost control solenoid failure
- Overboosting condition
- Exhaust restriction
Diagnostic steps
- Check wastegate operation
- Test boost control solenoid
- Monitor boost pressure
- Inspect turbo for damage
Repair notes
Immediately address to prevent engine damage. Repair wastegate or boost control system.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1