OBD Operation Summary for 6.7L Diesel - MotorCraftService.com
OBD Operation Summary for 6.7L Diesel - MotorCraftService.com OBD Operation Summary for 6.7L Diesel - MotorCraftService.com
Mass Air Flow Sensor Plausibility Check Operation:DTCsMonitor ExecutionMonitor SequenceP1102 – Mass Air Flow Sensor In Range But Lower Than ExpectedP1103 – Mass Air Flow Sensor In Range But Higher Than ExpectedContinuousNone.Sensors OK MAF (P0100, P0101, P0102), BP (P2228, P2229), EGRP (P0405, P0406,P0404, P0042E, P042F, P1335),Typical Monitoring Duration10 secondsTypical Mass Air Flow Sensor Plausibility Check Entry Conditions:Entry condition Minimum MaximumBarometric Pressure 75 kPa 110 kPaEngine Coolant Temperature 70 deg C 121 deg CAmbient Air Temperature -20 deg C 80 deg CTime engine running Normal5 secondsKey OnTypical Mass Air Flow Sensor Plausibility Check Malfunction Thresholds:If Mass Air Flow is greater than AFS_dmMinThresMoB1, or less than AFS_dmMaxThresMoB1 for 10seconds, a fault is detected and a P-code is set.Minimum AFS Threshold MapRPM 400 600 1000 1500 2000 2500 3000 3500Airflow 0 25 100 130 130 150 180 210Maximum AFS Threshold MapRPM 600 750 1000 1500 2000 2500 3000 3500Airflow 300 400 540 850 1100 1350 1550 1550FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 98 OF 157
DEF Pressure SensorThe DEF pressure control system uses the measured DEF pressure in a feedback control loop to achieve thedesired DEF pressure. The DEF injection algorithm uses actual DEF pressure in its computation of DEF injectorpulse width.The DEF sensor is a gauge sensor. Its atmospheric reference hole is near the electrical connector. The DEFpressure sensor has a nominal range of 0 to 0.8 MPa (0 to 8 bar, 0 to 116 psi). This pressure range is above themaximum intended operating pressure of 0.5 MPa. The sensor voltage saturates at slightly above 0.5 and slightlybelow 4.5 volts.DEF Pressure SensorDEF pressure is often a vacuum when the system purges after running. Vacuums cannot be measured by theDEF pressure gauge sensor as voltages will not be lower than 0.5 Volts.DEF Pressure Sensor Transfer FunctionDEF Pump Pressure (PSI) = 29 * Voltage - 14.5Volts Pressure, MPa (gauge) Pressure, psi (gauge)5.00 0.8 1164.50 0.8 1163.50 0.6 872.50 0.4 581.00 0.1 140.500 0.0 00.250 0.0 0FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 99 OF 157
- 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 62 and 63: DPF Restriction MonitorThe DPF is m
- 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 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
- Page 112 and 113: Diesel Particulate Filter Pressure
- Page 114 and 115: Typical Actuator Jammed Valve Entry
- Page 116 and 117: ECB Valve Actuator Signal Range Che
- Page 118 and 119: Reductant Pump MotorThe Reductant P
- Page 120 and 121: Reductant Pump Motor Circuit Checks
- Page 122 and 123: Reductant Dosing Valve Circuit Chec
- Page 124 and 125: Reverting ValveIn order to reverse
- Page 126 and 127: Urea HeatersAqueous urea water solu
- Page 128 and 129: Additional plausibility check for h
- Page 130 and 131: Engine Control Unit (ECU) Monitor O
- Page 132 and 133: Typical Engine Control Unit (ECU) M
- Page 134 and 135: Lack of Communication Codes:CAN Com
- Page 136 and 137: Glow PlugsThe diesel engine uses gl
- Page 138 and 139: Glow Plug Circuit Open Load Check O
- Page 140 and 141: Glow Plug Circuit Resistance Out of
- Page 142 and 143: Miscellaneous ECU Errors:VID Block
- Page 144 and 145: Most vehicle applications no longer
- Page 146 and 147: Transmission Fluid Temperature Sens
Mass Air Flow Sensor Plausibility Check <strong>Operation</strong>:DTCsMonitor ExecutionMonitor SequenceP1102 – Mass Air Flow Sensor In Range But Lower Than ExpectedP1103 – Mass Air Flow Sensor In Range But Higher Than ExpectedContinuousNone.Sensors OK MAF (P0100, P0101, P0102), BP (P2228, P2229), EGRP (P0405, P0406,P0404, P0042E, P042F, P1335),Typical Monitoring Duration10 secondsTypical Mass Air Flow Sensor Plausibility Check Entry Conditions:Entry condition Minimum MaximumBarometric Pressure 75 kPa 110 kPaEngine Coolant Temperature 70 deg C 121 deg CAmbient Air Temperature -20 deg C 80 deg CTime engine running Normal5 secondsKey OnTypical Mass Air Flow Sensor Plausibility Check Malfunction Thresholds:If Mass Air Flow is greater than AFS_dmMinThresMoB1, or less than AFS_dmMaxThresMoB1 <strong>for</strong> 10seconds, a fault is detected and a P-code is set.Minimum AFS Threshold MapRPM 400 600 1000 1500 2000 2500 3000 3500Airflow 0 25 100 130 130 150 180 210Maximum AFS Threshold MapRPM 600 750 1000 1500 2000 2500 3000 3500Airflow 300 400 540 850 1100 1350 1550 1550FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 98 OF 157
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