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Volvo All Engines (2017 Emissions) Fault Code: P04DD00 PID: EMS Cold Start EGR “A” Flow Insufficient Detected

Volvo All Engines (2017 Emissions) Fault Code: P04DD00 PID: EMS Cold Start EGR “A” Flow Insufficient Detected

The EGR Valve operation is controlled by the Engine Control Module (ECM) using a pulse width modulated signal.  The ECU provides both the power and ground circuits. The EGR Valve assembly consists of a solenoid, operating a valve by hydraulic pressure provided by the engine’s oiling system.

Conditions for diagnostic trouble code (DTC):
1) EGR mass flow is below calculated value
2) The EGR mass flow is an calculated value based on a number of sensor signals and software calculations

Probable cause
1) EGR System
2) Connector
3) Wiring harness
4) EGR differential pressure sensor
5) EGR Valve

Volvo All Engines (2017 Emissions) Fault Code: P04DB00 PID: EMS Crankcase Ventilation System Disconnected
Volvo All Engines (2017 Emissions) Fault Code: P04DA00 PID: EMS Closed Loop EGR Control At Limit – Flow Too High
Volvo All Engines (2017 Emissions) Fault Code: P04D900 PID: EMS Closed Loop EGR Control At Limit – Flow Too Low
Volvo All Engines (2017 Emissions) Fault Code: P04D800 PID: EMS Excessive Time To Enter Closed Loop EGR Control
Volvo All Engines (2017 Emissions) Fault Code: P048900 PID: EMS EGR “A” Control Circuit Low
Volvo All Engines (2017 Emissions) Fault Code: P048313 PID: EMS Fan Performance