OBD Operation Summary for 6.7L Diesel - MotorCraftService.com

More documents

Recommendations

Info

Fuel Rail Pressure ( FRP ) Rationality Check Operation:DTCsMonitor ExecutionMonitor SequenceP0191 - Fuel Rail Pressure Sensor "A" Circuit Range/PerformanceImmediately Prior to Crank and After Key-offNoneSensors OK Sensor Supply Voltage 1 OK (P06A6), FRP OK (P0192, P0193)Typical Monitoring Duration0.5 secTypical Fuel Rail Pressure Rationality Check Entry Conditions:Entry condition Minimum MaximumPre-crank: engine coolant temperaturePre-crank: time engine offAfter key-off: fuel temperatureAfter key-off: time since key off-7 deg C600 sec-40 deg C12 secTypical Fuel Rail Pressure Rationality Malfunction Thresholds:FRP voltage < 0.251 V (-40 bar) or > 0.384 V (68 bar).FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 22 OF 157
Fuel Rail Pressure Sensor Range Check:When fuel rail pressure is controlled by the Pressure Control Valve, the Pressure Control Valve signal needed tomaintain rail control is compared to an expected value. An adaptation factor for the Pressure Control Valve iscalculated from the difference between observed and expected control values. Inaccuracy in the Rail PressureSensor Signal Slope is a potential cause of inaccuracy in the needed Pressure Control Valve signal alongwith physical errors in the PCV itself. If the adaptation factor required for the Pressure Control Valveexceeds a minimum or maximum control limit, then a code is set for rail pressure slope out of acceptablerange.Fuel Rail Pressure ( FRP ) Range Check Operation:DTCsMonitor ExecutionMonitor SequenceP016D - Excessive Time To Enter Closed Loop Fuel Pressure ControlP228E - Fuel Pressure Regulator 1 Exceeded Learning Limits - Too LowP228F - Fuel Pressure Regulator 1 Exceeded Learning Limits - Too HighContinuousNoneSensors OK Sensor Supply Voltage 1 (P06A6), FRP (P0192, P0193)Typical Monitoring DurationP016D – 30 sec, P228E, P228F - 10 secTypical Fuel Rail Pressure Range Check Entry Conditions:Entry condition Minimum MaximumP016D:Requested rail pressure 500 bar 1200 barChange in requested rail pressure30 secFuel temperature40 deg CP228E, P228F:Rail pressure set point 500 bar 1200 barFuel Temperature40 deg CTime since engine start30 secTypical Fuel Rail Pressure Range Check Malfunction Thresholds:P016D: If the system is within the adaptation operating conditions, but fails to learn a new adaptation factorafter 30 seconds, this DTC is set.P228E, P228F: If the adaptation factor exceeds positive or negative thresholds which correspond toapproximately a 20% deviation in the Rail Pressure Sensor slope, a DTC is set.FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 23 OF 157
Page 1 and 2: 2013 MY OBD System OperationSummary
Page 3 and 4: Cam and Crank Sensor: .............
Page 5 and 6: Introduction - OBD-II and EMDOBD-II
Page 7 and 8: Comprehensive Component MonitorGlow
Page 9 and 10: 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 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 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 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
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
Page 148 and 149:
Shift Solenoid Functional Check Ope
Page 150 and 151:
Pressure Control Solenoid Check Ope
Page 152 and 153:
Transmission OutputsShift Solenoids
Page 154 and 155:
On Board Diagnostic ExecutiveThe On
Page 156 and 157:
I/M Readiness CodeThe readiness fun
show all

OBD Operation Summary for 6.7L Diesel - MotorCraftService.com

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?