Turbo/Supercharger Boost Control Circuit High
2006-2011 BMW 325i 3.0L I6 N52
Description
The signal from the turbo boost control solenoid circuit is above the expected threshold. This can cause overboost or erratic boost control.
Symptoms
- Check Engine Light
- Overboost condition
- Engine knock under load
- Reduced power mode
- Harsh acceleration surge
Common Causes
- Open circuit in boost solenoid ground
- Faulty solenoid stuck open
- PCM driver circuit failure
- Damaged wiring harness
- Failed boost pressure sensor
Diagnostic Steps
- Measure voltage at boost solenoid connector
- Check solenoid ground circuit continuity
- Test solenoid coil resistance
- Inspect wiring for opens or chafing
- Command solenoid with scan tool and verify operation
Repair Notes
Repair open circuit or replace boost control solenoid. Verify no overboost condition exists after repair.
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
P3002 on Other Vehicles
Common Questions
What does code P3002 mean on a 2006-2011 BMW 325i?
P3002 stands for "Turbo/Supercharger Boost Control Circuit High". The signal from the turbo boost control solenoid circuit is above the expected threshold. This can cause overboost or erratic boost control.
What are the symptoms of P3002 on a BMW 325i?
Common symptoms of P3002 include: Check Engine Light, Overboost condition, Engine knock under load, Reduced power mode, Harsh acceleration surge.
What causes P3002 on a 2006-2011 BMW 325i?
Common causes of P3002 include: Open circuit in boost solenoid ground, Faulty solenoid stuck open, PCM driver circuit failure, Damaged wiring harness, Failed boost pressure sensor.