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
Feedback control: ................................................................................................................................................. 34EXHAUST GAS SENSOR MONITOR ...................................................................................................................... 38Air-Fuel Ratio Sensors: Tailpipe NOx and O2 Sensor Control Module ............................................................. 38EXHAUST GAS RECIRCULATION (EGR) SYSTEM MONITOR ........................................................................... 44EGR Rate System Monitor ................................................................................................................................... 44EGR Cooler / EGR Cooler Bypass Monitor ........................................................................................................ 45EGR System Slow Response .............................................................................................................................. 48EGR Closed-loop Control Limits Monitor ............................................................................................................ 48Mass Airflow Closed-loop Control Limits Monitor ............................................................................................... 49BOOST PRESSURE CONTROL SYSTEM MONITORING .................................................................................... 51Intrusive Turbo Position and Response Monitoring ............................................................................................ 51Intrusive Wastegate Monitoring ........................................................................................................................... 53Functional Overboost Monitoring ......................................................................................................................... 54Functional Underboost Monitoring ....................................................................................................................... 55Threshold Underboost Monitoring ....................................................................................................................... 56Charge Air Cooler Monitoring ............................................................................................................................... 57PARTICULATE MATTER (PM) FILTER MONITORING ......................................................................................... 58DPF Filter Efficiency and Missing Substrate Monitors ........................................................................................ 58DPF Frequent Regeneration Monitor .................................................................................................................. 59DPF Incomplete Regeneration Monitor ............................................................................................................... 60DPF Feedback Control Monitors ......................................................................................................................... 61DPF Restriction Monitor ....................................................................................................................................... 62CRANKCASE VENTILATION (CV) SYSTEM MONITOR ....................................................................................... 63ENGINE COOLING SYSTEM MONITORING .......................................................................................................... 65Thermostat Monitor ............................................................................................................................................... 65Primary Coolant Temp Dynamic Monitoring ....................................................................................................... 68Secondary Coolant Temp Dynamic Monitoring .................................................................................................. 69COLD START EMISSION REDUCTION STRATEGY MONITORING................................................................... 70Cold Start Emission Reduction System Monitor ................................................................................................. 70Cold Start Emission Reduction Component Monitor .......................................................................................... 71Engine Sensors ........................................................................................................................................................... 74Air Temperature Rationality Test ......................................................................................................................... 74Barometric Pressure and Manifold Absolute Pressure ....................................................................................... 82Turbine Upstream Pressure Sensor Plausibility Checks .................................................................................... 84Upstream Turbine Pressure Sensor Signal Range Check................................................................................. 85EGR Valve Position Sensor ................................................................................................................................. 86Throttle Position Sensor ....................................................................................................................................... 86EGR Downstream Temperature Sensor Dynamic Plausibility Check ............................................................... 87Engine Coolant & Engine Oil Correlation ............................................................................................................ 88FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 2 OF 157
Cam and Crank Sensor: ....................................................................................................................................... 91Fan: ........................................................................................................................................................................ 93Mass Air Meter ...................................................................................................................................................... 94MAF Rationality Check ......................................................................................................................................... 96DEF Pressure Sensor .......................................................................................................................................... 99Reductant Pressure Sensor Signal Range Check............................................................................................ 100Reductant Pressure Plausibility Check before Start-up .................................................................................... 100DEF Pressure Build-up Check at Start-up ........................................................................................................ 101DEF System Pressure Control ........................................................................................................................... 102Reductant Tank Level Sensor ............................................................................................................................ 103Reductant Tank Level Sensor Circuit Checks .................................................................................................. 104Reductant Tank Level Sensor Plausibility Check ............................................................................................. 105Reductant Tank Temperature Sensor ............................................................................................................... 105Exhaust Gas Temperature Sensor Rationality Test ......................................................................................... 108Diesel Particulate Filter Pressure Sensor Rationality Test ............................................................................... 111Diesel Particulate Filter Pressure Offset Test ................................................................................................... 112Engine Outputs .......................................................................................................................................................... 113EGR Valve Actuator Signal Range Check ........................................................................................................ 113EGR Valve Actuator Jammed Detection ........................................................................................................... 113Throttle Valve Actuator Signal Range Check .................................................................................................... 114Throttle Valve Actuator Jammed Detection ....................................................................................................... 115ECB Valve Actuator Signal Range Check......................................................................................................... 116Urea System Pressure Control .......................................................................................................................... 116Reductant Pump Motor ...................................................................................................................................... 118Reductant Dosing Valve (Injector) ..................................................................................................................... 121Reverting Valve ................................................................................................................................................... 124Urea Heaters ....................................................................................................................................................... 126Lack of Communication Codes: ......................................................................................................................... 134Glow Plugs .......................................................................................................................................................... 136Turbocharger Actuator Signal Range Check .................................................................................................... 141Wastegate Vacuum Solenoid Signal Range Check ......................................................................................... 141Miscellaneous ECU Errors: ................................................................................................................................ 142Comprehensive Component Monitor - Transmission ............................................................................................. 143Transmission Inputs ............................................................................................................................................ 143Transmission Outputs ......................................................................................................................................... 1476R140 (RWD) Transmission with external PCM or TCM ....................................................................................... 151On Board Diagnostic Executive ................................................................................................................................ 154Exponentially Weighted Moving Average ................................................................................................................ 155I/M Readiness Code .................................................................................................................................................. 156FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 3 OF 157
- Page 1: 2013 MY OBD System OperationSummary
- 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 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
Cam and Crank Sensor: ....................................................................................................................................... 91Fan: ........................................................................................................................................................................ 93Mass Air Meter ...................................................................................................................................................... 94MAF Rationality Check ......................................................................................................................................... 96DEF Pressure Sensor .......................................................................................................................................... 99Reductant Pressure Sensor Signal Range Check............................................................................................ 100Reductant Pressure Plausibility Check be<strong>for</strong>e Start-up .................................................................................... 100DEF Pressure Build-up Check at Start-up ........................................................................................................ 101DEF System Pressure Control ........................................................................................................................... 102Reductant Tank Level Sensor ............................................................................................................................ 103Reductant Tank Level Sensor Circuit Checks .................................................................................................. 104Reductant Tank Level Sensor Plausibility Check ............................................................................................. 105Reductant Tank Temperature Sensor ............................................................................................................... 105Exhaust Gas Temperature Sensor Rationality Test ......................................................................................... 108<strong>Diesel</strong> Particulate Filter Pressure Sensor Rationality Test ............................................................................... 111<strong>Diesel</strong> Particulate Filter Pressure Offset Test ................................................................................................... 112Engine Outputs .......................................................................................................................................................... 113EGR Valve Actuator Signal Range Check ........................................................................................................ 113EGR Valve Actuator Jammed Detection ........................................................................................................... 113Throttle Valve Actuator Signal Range Check .................................................................................................... 114Throttle Valve Actuator Jammed Detection ....................................................................................................... 115ECB Valve Actuator Signal Range Check......................................................................................................... 116Urea System Pressure Control .......................................................................................................................... 116Reductant Pump Motor ...................................................................................................................................... 118Reductant Dosing Valve (Injector) ..................................................................................................................... 121Reverting Valve ................................................................................................................................................... 124Urea Heaters ....................................................................................................................................................... 126Lack of Communication Codes: ......................................................................................................................... 134Glow Plugs .......................................................................................................................................................... 136Turbocharger Actuator Signal Range Check .................................................................................................... 141Wastegate Vacuum Solenoid Signal Range Check ......................................................................................... 141Miscellaneous ECU Errors: ................................................................................................................................ 142Comprehensive Component Monitor - Transmission ............................................................................................. 143Transmission Inputs ............................................................................................................................................ 143Transmission Outputs ......................................................................................................................................... 1476R140 (RWD) Transmission with external PCM or TCM ....................................................................................... 151On Board Diagnostic Executive ................................................................................................................................ 154Exponentially Weighted Moving Average ................................................................................................................ 155I/M Readiness Code .................................................................................................................................................. 156FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 3 OF 157
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