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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.
Conditions for diagnostic trouble code (DTC):
1) Engine Turbo Compressor Bypass Valve, Stuck in one position
Observable symptoms
1) Regeneration not possible
2) Possible engine de-rate
3) Low Power
Probable cause
1) Low air pressure
2) Charge air system leakage
3) ETCBV Hose
4) ETCBV Sealing ring
5) Engine Turbo Compressor Bypass Valve
6) ETCBV, Solenoid valve(s)
7) Turbocharger
Detailed information
1) Heat mode inhibited
