Volvo All Engines (2017 Emissions) Fault Code: P053E00 PID: EMS Crankcase Pressure Too High

The Crankcase Pressure Sensor is used to detect crankcase pressure system failures. The sensor consists of a pressure sensitive diaphragm and amplifier. Crankcase pressure causes the sensor’s diaphragm to deflect and produce an electrical signal proportional to the pressure. The diaphragm deflection signal is amplified in the sensor.
The engine control module (ECM) will set a diagnostic trouble code (DTC) if the sensor signal is not within predetermined limits. The ECM can also disable the engine brake, derate or shut down the engine to avoid engine damage.
The sensor’s signal is monitored by the Engine Control Module (ECM).

Conditions for diagnostic trouble code (DTC):
1) Irrational pressure

Observable symptoms
1) Engine shutdown
2) Engine brake disabled
3) Low Power
4) Limited engine speed

Probable cause
1) High engine oil level
2) Excessive wear or damage to cylinder liners, piston, piston rings or turbocharger internal seals
3) Restricted crankcase ventilation
4) The following connectors may have been switched: B54: Crankcase pressure sensor, B118: Engine oil pressure (EOP) sensor

Detailed information
1) The alarm sounds if the pressure is more than 5 kPa (0.73 psi)