OBD Operation Summary for 6.7L Diesel - MotorCraftService.com

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Reductant Tank Level Sensor Circuit ChecksReductant Tank Level Sensor Open/Short Check Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP203D - Reductant Level Sensor "A" Circuit High (SRC max – pin 1 & SCB)P21AB - Reductant Level Sensor "B" Circuit High (SRC max – pin 2)P21B0 - Reductant Level Sensor "C" Circuit High (SRC max – pin 3)P203A - Reductant Level Sensor Circuit (OL)P203C - Reductant Level Sensor Circuit Low (SCG)Continuous, every 4 seconds (3x 1 sec to read from each individual pin,1 sec for diagnosis)NoneNone0.5 seconds to register a malfunction within diagnostic modeTypical Tank Level Sensor Open/Short Check Malfunction Thresholds:P203D, P21AB & P21B0: voltage > 3.24 Volts (Signal range check max. for pin 1, 2 & 3)P203D: no calibration thresholds available, SCB fault information is sent directly from power stageP203C: no calibration thresholds available, SCG fault information is sent directly from power stageP203A: no calibration thresholds available, OL fault information is sent directly from power stageThe Reductant Tank Level Sensor and the Reductant Tank Temperature Sensor share the same ground wire.Therefore an open load or short circuit to battery on the ground wire (reference pin) will set codes for both sensors.FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 104 OF 157
Reductant Tank Level Sensor Plausibility CheckIf a certain level pin is covered by liquid all pins below this level should be covered as well and send the sameinformation. If this is not the case, an error flag will be set.Reductant Tank Level Sensor Plausibility Check Operation:DTCsMonitor executionMonitor SequenceSensors/Actuators OKMonitoring DurationP203B – Reductant Level Sensor Circuit Range/PerformanceContinuousnoneReductant Level sensor signal range checks60 seconds to register a malfunctionTypical Reductant Tank Level Sensor Plausibility Check Malfunction Thresholds:no calibration thresholds availableReductant Tank Temperature SensorThe Reductant Tank Temperature sensor is mounted internal to the Reductant Tank Level Sensor. It is used tocontrol the activation of the Reductant Tank Heater as well as an enabler to the Level Sensor (which cannot readlevel when the reductant is frozen).Transfer FunctionTemperatureDeg CResistance(Ohms)-40 336-30 177-20 97-10 550 3210 2020 1230 840 5.350 3.660 2.570 1.880 1.2FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 105 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
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The dynamometer certified applicati
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NON-METHANE HYDROCARBON (NMHC) CONV
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OXIDES OF NITROGREN (NOx) CONVERTIN
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Selective Catalyst Reduction Feedba
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Misfire Monitor Operation:DTCsMonit
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Fuel Rail Pressure ( FRP ) Rational
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Fuel Temperature Sensor Circuit Che
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Fuel Pressure Control Valve (PCV) M
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Fuel Injector Driver Circuit Monito
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Injector Code Missing/Invalid:Injec
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Injection Timing / Injection quanti
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Feedback control:Fuel Balancing Con
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VoltageNominal Voltage Calibration:
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EXHAUST GAS SENSOR MONITORAir-Fuel
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The NOx sensor is primarily used to
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percent O2P0133 (O2 slow response)
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EXHAUST GAS RECIRCULATION (EGR) SYS
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EGR Cooler/ECB Entry Conditions (Ov
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EGR System Slow ResponseSlow respon
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Mass Airflow Closed-loop Control Li
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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 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
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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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