MID 128-PID 81 MID 128-PID 81 MID 128 PID 81 — PARTICULATE TRAP DIFFERENTIAL PRESSURE SENSOR Reaction from Engine Management System (EMS) Module: MIL lamp illuminated FMI 3 Failure Mode Identifier (FMI): 0 (Data Valid But Above Normal Operational Range - Most Severe Level), 2 (Data Erratic, Intermittent or Incorrect), 3 (Voltage Above Normal, or Shorted To High Source), 4 (Voltage Below Normal, or Shorted To Low Source), 5 (Current Below Normal or Open Circuit), 7 (Mechanical System Not Responding or Out Of Adjustment), 12 (Intelligent Device or Component) Voltage Above Normal, or Shorted To High Source Conditions for fault code:
Short to battery on the metering side of the circuit Open circuit in the ground line Possible causes: Parameter Identification (PPID): P81 Particulate Trap Pressure (PTP) Sensor failure Message Identification (MID): 128 FMI 0 Faulty Particulate Trap Pressure (PTP) Sensor connector Faulty harness Data Valid But Above Normal Operational Range - Most Severe Level Conditions for fault code: Reaction from Engine Management System (EMS) Module: Moderately high pressure Excessive pollution from exhaust Possible causes: FMI 4 Particulate Trap Pressure (PTP) Sensor failure Voltage Below Normal, or Shorted To Low Source Reaction from Engine Management System (EMS) Module: Conditions for fault code:
Short to ground on the metering side of the circuit MIL lamp illuminated Open circuit in the metering line Noticeable external symptoms: Possible causes: Engine derate Particulate Trap Pressure (PTP) Sensor failure FMI 2 Data Erratic, Intermittent or Incorrect Faulty Particulate Trap Pressure (PTP) Sensor connector Conditions for fault code: Faulty harness Sensor is not rational Reaction from Engine Management System (EMS) Module: Particulate differential pressure is out of range Excessive pollution from exhaust Possible causes: Particulate Trap Pressure (PTP) Sensor failure Page 21 MID 128-PID 81