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Volvo engine code DTC P204B
Aftertreatment DEF Pump Pressure Sensor: Rationality Monitor DEF pressure is compared with the expected value when the DEF pump is in initial pressure build-up mode or if the DEF pressure is above expected value when DEF pump is in idle speed mode. P204B Aftertreatment DEF Pump Pressure Sensor: Rationality DTC P204B Component / System Pump Sensor - Rationaltiy Monitor Strategy Description DEF pressure Fault Limit Monitors the actual pressure vs expected pressure < 100 kPa Enable Conditions • Key On Active Disable Conditions No Active DTC's: • P204C, P204A Time Required For DTC To Be Set 180 seconds MIL Illumination 2 Drive Cycles