Volvo

Volvo All Engines (2017 Emissions) Fault Code: P048313 PID: EMS Fan Performance Conditions for diagnostic trouble code (DTC):1) Open circuit Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) Engine fan does not operate Probable cause1) Engine coolant temperature sensor2) Connector3) Wiring harness4) Engine control module (ECM) Volvo All Engines (2017 Emissions) Fault Code: P048312 PID: EMS Fan Performance Volvo All Engines (2017 Emissions) Fault Code: P048301 PID: EMS Fan Performance Volvo All Engines (2017 Emissions) Fault Code: P048013 PID: EMS Fan 1 Control Circuit Volvo All Engines (2017 Emissions) Fault Code: P047F00 PID: EMS Exhaust Pressure Control Valve...

Volvo All Engines (2017 Emissions) Fault Code: P048900 PID: EMS EGR “A” Control Circuit Low 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) Supply voltage greater than 35V volts for more than 5 seconds Observable symptoms1) Loss of power Probable cause1) Connector2) Wires between EGR Valve and Engine Control Module (ECM)3) EGR Valve Volvo All...

Volvo All Engines (2017 Emissions) Fault Code: P049D99 PID: EMS EGR “A” Control Position Exceeded Learning Limit Circuit descriptionThe 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)Valve position out of range Probable cause1) EGR Valve Volvo All Engines (2017 Emissions) Fault Code: P048012 PID: EMS Fan 1 Control Circuit Volvo All Engines (2017 Emissions) Fault Code:...

Volvo All Engines (2017 Emissions) Fault Code: P04D800 PID: EMS Excessive Time To Enter Closed Loop EGR Control 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) Engine coolant temperature below 68ºF Observable symptoms1) None Probable cause1) Engine coolant temperature sensor Volvo All Engines (2017 Emissions) Fault Code: P048900 PID: EMS EGR “A” Control Circuit Low...

Volvo All Engines (2017 Emissions) Fault Code: P04D900 PID: EMS Closed Loop EGR Control At Limit – Flow Too Low This function is used to calculate the EGR Mass Flow. The Engine Control Module (ECM) monitors the EGR diffpressure sensor and the EGR temperature sensor after cooler and uses these signals to calculate the EGR Mass Flow data. Conditions for diagnostic trouble code (DTC):1) EGR mass flow is below calculated value2) The EGR mass flow is an calculated value based on a number of sensor signals and software calculations Probable cause1) EGR Cooler2) EGR System3) Connector4) Wiring harness5) EGR Valve6)...