Volvo

Volvo All Engines (2017 Emissions) Fault Code: P047572 PID: EMS Exhaust Pressure Control Valve “A” Circuit descriptionThe purpose of the engine exhaust brake closed loop butterfly valve (butterfly valve) is to create a controlled exhaust back pressure upstream of the butterfly valve. The butterfly valve consists of the housing, shutter, shaft, bushings, pneumatic actuator, spring, and a bracket assembly. The shutter is kept in an open position by the spring when not activated. A pneumatic actuator closes the shutter when activated. The actuator is activated by the Engine Control Module (ECM). An exhaust pressure sensor located upstream from the shutter...

Volvo All Engines (2017 Emissions) Fault Code: P047700 PID: EMS Exhaust Pressure Control Valve “A” Conditions for diagnostic trouble code (DTC):1) Short circuit to ground on A14.EB:38 Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) Exhaust pressure governor constantly activated2) The engine brake does not function3) Low Power4) Black smoke Probable cause1) Control wire2) Short circuit in control valve Volvo All Engines (2017 Emissions) Fault Code: P047513 PID: EMS Exhaust Pressure Control Valve “A” Volvo All Engines (2017 Emissions) Fault Code: P047300 PID: EMS Engine Exhuast Back Pressure Circuit High Volvo All Engines (2017 Emissions) Fault Code: P047164...

Volvo All Engines (2017 Emissions) Fault Code: P047800 PID: EMS Exhaust Pressure Control Valve “A” High Conditions for diagnostic trouble code (DTC):1) Short circuit to battery voltage on A14.EB:38 Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) The exhaust brake does not function2) The heat retention function is not working3) Low Power Probable cause1) Short circuit to battery voltage, Control wire2) Short circuit in control valve Volvo All Engines (2017 Emissions) Fault Code: P047700 PID: EMS Exhaust Pressure Control Valve “A” Volvo All Engines (2017 Emissions) Fault Code: P047513 PID: EMS Exhaust Pressure Control Valve “A” Volvo All...

Volvo All Engines (2017 Emissions) Fault Code: P047F00 PID: EMS Exhaust Pressure Control Valve “A” Stuck Open Conditions for diagnostic trouble code (DTC):1) Sensor value does not change with changing conditions Observable symptoms1) Engine brake, poor brake performance/Brake performance too high Probable cause1) Exhaust back pressure sensor2) Leakage from hoses or connections3) Clogged or blocked air system Volvo All Engines (2017 Emissions) Fault Code: P047800 PID: EMS Exhaust Pressure Control Valve “A” High Volvo All Engines (2017 Emissions) Fault Code: P047700 PID: EMS Exhaust Pressure Control Valve “A” Volvo All Engines (2017 Emissions) Fault Code: P047513 PID: EMS Exhaust Pressure...

Volvo All Engines (2017 Emissions) Fault Code: P047F71 PID: EMS Exhaust Pressure Control Valve “A” Stuck Open Circuit descriptionThe purpose of the engine exhaust brake closed loop butterfly valve (butterfly valve) is to create a controlled exhaust back pressure upstream of the butterfly valve. The butterfly valve consists of the housing, shutter, shaft, bushings, pneumatic actuator, spring, and a bracket assembly. The shutter is kept in an open position by the spring when not activated. A pneumatic actuator closes the shutter when activated. The actuator is activated by the Engine Control Module (ECM). An exhaust pressure sensor located upstream from...