Supercharger Bypass Actuator Circuit Open
2012-2016 Ferrari FF 6.3L V12
Description
The supercharger bypass actuator that controls airflow around the supercharger for efficiency is not responding due to an open circuit.
Symptoms
- Check Engine Light
- Supercharger always pumping air (no bypass)
- Higher parasitic load on engine
- Reduced fuel economy at cruise
- Supercharger whine present at all times
Common Causes
- Bypass actuator motor open circuit
- Wiring harness disconnected
- Connector pin backed out
- Actuator failed internally
- PCM driver circuit blown
Diagnostic Steps
- Test bypass actuator motor resistance
- Check wiring continuity to actuator
- Inspect connector for backed-out pins
- Command actuator via scan tool
- Measure PCM output voltage at actuator
Repair Notes
Replace supercharger bypass actuator or repair wiring. Verify bypass operates correctly at low load conditions.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3034 on Other Vehicles
Ferrari 360 Challenge Stradale
2003-2005 3.6L V8
Ferrari 360 Modena
1999-2005 3.6L V8
Ferrari 430 Scuderia
2007-2009 4.3L V8
Ferrari 456 GT
1993-2003 5.5L V12
Ferrari 458 Italia
2009-2015 4.5L V8
Ferrari 458 Speciale
2013-2015 4.5L V8
Ferrari 488 GTB
2015-2019 3.9L V8 Twin Turbo
Ferrari 488 Pista
2018-2020 3.9L V8 Twin Turbo
Common Questions
What does code P3034 mean on a 2012-2016 Ferrari FF?
P3034 stands for "Supercharger Bypass Actuator Circuit Open". The supercharger bypass actuator that controls airflow around the supercharger for efficiency is not responding due to an open circuit.
What are the symptoms of P3034 on a Ferrari FF?
Common symptoms of P3034 include: Check Engine Light, Supercharger always pumping air (no bypass), Higher parasitic load on engine, Reduced fuel economy at cruise, Supercharger whine present at all times.
What causes P3034 on a 2012-2016 Ferrari FF?
Common causes of P3034 include: Bypass actuator motor open circuit, Wiring harness disconnected, Connector pin backed out, Actuator failed internally, PCM driver circuit blown.