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Volvo engine code DTC P2453
Aftertreatment Differential Pressure Sensor (DPS): Rationality Monitor This OBD monitor diagnoses the DPF differential pressure sensor, by monitoring the deviation between estimated DPF differential pressure and the measured DPF differential pressure value. There are two independent tests that evaluate the differential pressure sensor plausibility: Low Flow Condition: When the engine is in idle or in low engine speed and torque condition, the differential pressure over the DPF is expected to be close to zero. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set. High Flow Condition: When the engine is in higher engine speed and torque condition, the differential pressure over the DPF is expected to rise according to engine speed and torque. If the differential pressure exceeds a threshold then the differential pressure sensor plausibility DTC is set. P2453 Aftertreatment Differential Pressure Sensor (DPS): DPS Differential Pressure Sensor DTC P2453 Component / System DPS - Plausibility Monitor Strategy Description Rationality high and low Fault Limit Low Condition Measured DPF Delta Pressure in Low Pressure Conditions > 1.5 kPa High Condition Measured DPF Delta Pressure in High pressure Conditions < 2.5 kPa Enable Conditions Low Condition • Engine Speed < 750 RPM • Engine Torque < 300 Nm • Modeled DPF delta Pressure < 1.5 kPa • DOC Out Temperature 15 - 275 °C • DPF Out Temperature 15 - 275 °C • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C High Condition • Engine Speed 1400 - 1900 RPM • Engine Torque > 4.5 kPa • Modeled DPF delta Pressure < 1.5 kPa • DOC Out Temperature > 325 °C • DPF Out Temperature > 325 °C • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C Disable Conditions No Active DTC's: • P2226, P2229, P0110, P0112, P0115, P0117, P20DD, P20E0, P229E, P2200, P0105, P0108, P2031: P2322: P2084, P242C, P242A, P242B P0545, P0544, P2080, P1130, P1133, P20DC, P20D0, P20CF Time Required For DTC To Be Set Low Condition 15 seconds High Condition 8 seconds MIL Illumination 2 Drive Cycles