Volvo All Engines (2010 Emissions) Fault Code: SPN 3675 FMI 4 PID: PPID 330 Engine Turbocharger Compressor Bypass Valve Position

This diagnostic trouble code (DTC) indicates faults in the engine turbocharger compressor bypass actuator and solenoid. The function of the bypass actuator is to re-circulate the heated compressed air from the turbocharger back to the intake side which results in higher exhaust temperatures. A faulty engine turbocharger compressor bypass actuator can lead to power loss if valve is open at inappropriate times and no aftertreatment diesel particulate filter (DPF) regeneration if the bypass valve does not open.

Observable symptoms
1) Valve constantly activated
2) Low Power

Probable cause
1) Short circuit to ground, Control wire
2) ETCBV, Solenoid valve(s)

Deactivation
1) Aftertreatment Fuel Injection System
2) Particulate trap regeneration