OBD Operation Summary for 6.7L Diesel - MotorCraftService.com

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DPF Restriction MonitorThe DPF is monitored for conditions where it may be overloaded. The monitor compares the calculated restrictionof the DPF to two thresholds. By exceeding the first threshold for a sufficient period of time, a wrench light will beilluminated. By exceeding the second threshold for a sufficient period of time, a wrench light and a MIL will beilluminated and engine output will be limited.Monitor Summary:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP2463 – Diesel Particulate Filter Restriction – Soot AccumulationP246C - Diesel Particulate Filter Restriction – Forced LimitedPowerContinuous while meeting entry conditionsNoneDPFP300 secondsTypical Entry Conditions:Entry condition Minimum MaximumEngine Speed625 rpmTypical Malfunction Thresholds:Diesel Particulate Filter Restriction – Soot Accumulation (P2463) (Wrench Light)Calculated normalized restriction is 1.5 times the normal value for soot load.Diesel Particulate Filter Restriction – Forced Limited Power (P246C) (Immediate MIL and Wrench Light)Calculated normalized restriction is 2.0 times the normal value for soot load.FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 62 OF 157
CRANKCASE VENTILATION (CV) SYSTEM MONITORThe crankcase ventilation system is monitored during Air Mass Adaptive learning of the Mass Air Meter, in similarfashion to the Air Meter functional check. The CV monitor diagnostic compares the desired vs. actual air metervalues while in a learning event- if the difference between them is too great a code is set. The figure belowillustrates the flow chart and entry conditions for AMA.FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 63 OF 157
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2013 MY OBD System OperationSummary
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Cam and Crank Sensor: .............
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Introduction - OBD-II and EMDOBD-II
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Comprehensive Component MonitorGlow
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System Schematic 6.7L Chassis Certi
Page 11 and 12: The dynamometer certified applicati
Page 13 and 14: NON-METHANE HYDROCARBON (NMHC) CONV
Page 15 and 16: OXIDES OF NITROGREN (NOx) CONVERTIN
Page 17 and 18: Selective Catalyst Reduction Feedba
Page 20 and 21: Misfire Monitor Operation:DTCsMonit
Page 22 and 23: Fuel Rail Pressure ( FRP ) Rational
Page 24 and 25: Fuel Temperature Sensor Circuit Che
Page 26 and 27: Fuel Pressure Control Valve (PCV) M
Page 28 and 29: Fuel Injector Driver Circuit Monito
Page 30 and 31: Injector Code Missing/Invalid:Injec
Page 32 and 33: Injection Timing / Injection quanti
Page 34 and 35: Feedback control:Fuel Balancing Con
Page 36 and 37: VoltageNominal Voltage Calibration:
Page 38 and 39: EXHAUST GAS SENSOR MONITORAir-Fuel
Page 40 and 41: The NOx sensor is primarily used to
Page 42 and 43: percent O2P0133 (O2 slow response)
Page 44 and 45: EXHAUST GAS RECIRCULATION (EGR) SYS
Page 46 and 47: EGR Cooler/ECB Entry Conditions (Ov
Page 48 and 49: EGR System Slow ResponseSlow respon
Page 50 and 51: Mass Airflow Closed-loop Control Li
Page 52 and 53: Note: this monitor also serves to m
Page 54 and 55: Functional Overboost MonitoringThe
Page 56 and 57: Threshold Underboost MonitoringThe
Page 58 and 59: PARTICULATE MATTER (PM) FILTER MONI
Page 60 and 61: DPF Incomplete Regeneration Monitor
Page 64 and 65: Mass Air Flow Sensor Functional Che
Page 66 and 67: Warm-up profiles with nominal therm
Page 68 and 69: Primary Coolant Temp Dynamic Monito
Page 70 and 71: COLD START EMISSION REDUCTION STRAT
Page 72 and 73: FBC operates in closed-loop control
Page 74 and 75: Engine SensorsAir Temperature Ratio
Page 76 and 77: Ambient Air Temperature (AAT) Senso
Page 78 and 79: Charge Air Cooler Temperature (CACT
Page 80 and 81: EGR Cooler Downstream Temperature R
Page 82 and 83: Barometric Pressure and Manifold Ab
Page 84 and 85: Turbine Upstream Pressure Sensor Pl
Page 86 and 87: EGR Valve Position SensorAnalog inp
Page 88 and 89: Engine Coolant & Engine Oil Correla
Page 90 and 91: Engine Oil Temperature (EOT) Sensor
Page 92 and 93: Typical Camshaft and Crankshaft Sen
Page 94 and 95: Typical Fan and Fan Speed Sensor Ch
Page 96 and 97: MAF Rationality CheckA rationality
Page 98 and 99: Mass Air Flow Sensor Plausibility C
Page 100 and 101: Reductant Pressure Sensor Signal Ra
Page 102 and 103: DEF System Pressure ControlDEF pres
Page 104 and 105: Reductant Tank Level Sensor Circuit
Page 106 and 107: Reductant Tank Temperature Circuit
Page 108 and 109: Exhaust Gas Temperature Sensor Rati
Page 110 and 111: Exhaust Gas Temperature Rationality
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Diesel Particulate Filter Pressure
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Typical Actuator Jammed Valve Entry
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ECB Valve Actuator Signal Range Che
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Reductant Pump MotorThe Reductant P
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Reductant Pump Motor Circuit Checks
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Reductant Dosing Valve Circuit Chec
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Reverting ValveIn order to reverse
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Urea HeatersAqueous urea water solu
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Additional plausibility check for h
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Engine Control Unit (ECU) Monitor O
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Typical Engine Control Unit (ECU) M
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Lack of Communication Codes:CAN Com
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Glow PlugsThe diesel engine uses gl
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Glow Plug Circuit Open Load Check O
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Glow Plug Circuit Resistance Out of
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Miscellaneous ECU Errors:VID Block
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Most vehicle applications no longer
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Transmission Fluid Temperature Sens
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Shift Solenoid Functional Check Ope
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Pressure Control Solenoid Check Ope
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Transmission OutputsShift Solenoids
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On Board Diagnostic ExecutiveThe On
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I/M Readiness CodeThe readiness fun
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OBD Operation Summary for 6.7L Diesel - MotorCraftService.com

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