VOLVOUU Engine D11L (Tier 4) Fault Code: P040311 PID: SID 146 FMI: 3 EGR “A” Control – Circuit Short To Ground

VOLVOUU Engine D11L (Tier 4) Fault Code: P040311 PID: SID 146 FMI: 3 EGR “A” Control – Circuit Short To Ground

CONTROL UNIT:
Engine ECU

FAILURE EVENT:
Short circuit to lower voltage has been detected.

SYMPTOM:
1. Low power because of engine derate.
2. Display message: SCR system failure, derate will occur soon.

CONDITIONS:
None

INHIBITING THE DTC:
U300001 / MID128 PID158 FMI5 / EF2104-5

POSSIBLE CAUSES:
1. Defective EGR valve.
2. Damaged wire harness or connector.