OBD Operation Summary for Fiesta - MotorCraftService.com

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Misfire Threshold ProcessingStartMeasuring of Segment TimeCrankshaft angle sensorerror adaption in processYesSegmentAdaptationNoSegment Time Correction (crankshaft positionwheel tolerances)Calculation:ER_AV (Engine Roughness)THD_ER_AV (Engine Roughness Threshold)NoER Value
Misfire Determination ProcessingCONTINENTAL REVISED: SEPTEMBER 17, 2010 PAGE 11 OF 111
Page 1 and 2: 2011 MY OBD System OperationSummary
Page 3 and 4: Knock Sensor.......................
Page 5 and 6: In the example above, CATMN_IAF_SUM
Page 7 and 8: Typical IAF catalyst monitor entry
Page 9: Fault processing - Emission Thresho
Page 13 and 14: J1979 Misfire Mode $06 DataMonitor
Page 15 and 16: .020" Leak Switch OpenTypical vehic
Page 17 and 18: CONTINENTAL REVISED: SEPTEMBER 17,
Page 19 and 20: NVLD II Module OperationNVLD II mod
Page 21 and 22: Canister Purge Solenoid, switch and
Page 23 and 24: Canister Purge valve Functional che
Page 25 and 26: High Purge Flow Monitor Operation:D
Page 27 and 28: EVAP Pressure Switch Performance Mo
Page 29 and 30: NVLD II Communication Check Operati
Page 31 and 32: O2 sensor voltageSHRTFT, Short Term
Page 33 and 34: Fuel Monitor Adaption MonitoringErr
Page 35 and 36: Fuel Monitor Operation:DTCsMonitor
Page 37 and 38: Upstream HO2S Circuit CheckNoStartM
Page 39 and 40: HO2S11 circuit check operation:DTCs
Page 41 and 42: Upstream HO2S Slow Response CheckCO
Page 43 and 44: Up-Stream Oxygen Sensor Rationality
Page 45 and 46: Upstream Oxygen Sensor Heater Circu
Page 47 and 48: HO2S Heater Monitor Operation:DTCs
Page 49 and 50: HO2S12 circuit check operation:DTCs
Page 51 and 52: Downstream Oxygen Sensor Slow Respo
Page 53 and 54: Downstream HO2S12 Response Rate Ope
Page 55 and 56: Downstream HO2S12 Functional Check
Page 57 and 58: Downstream HO2S Heater Electrical C
Page 59 and 60: Thermostat MonitorThe coolant therm
Page 61 and 62:
ECT Below Thermostat Regulating Tem
Page 63 and 64:
Spark Timing MonitorWhen the CSER s
Page 65 and 66:
Cold Start Emission Reduction Syste
Page 67 and 68:
CSER Monitor OperationDTCMonitor Ex
Page 69 and 70:
Variable Camshaft Timing Target Err
Page 71 and 72:
Variable Cam Timing Slow ResponseSt
Page 73 and 74:
Typical VVT Target Error/Slow Respo
Page 75 and 76:
Camshaft/Crankshaft Position Correl
Page 77 and 78:
Electronic Throttle ControlThe Elec
Page 79 and 80:
Electronic Throttle Control (ETC) M
Page 81 and 82:
Electronic Throttle Control (ETC) M
Page 83 and 84:
Accelerator and Throttle Position S
Page 85 and 86:
ECT Sensor Rationality Check Operat
Page 87 and 88:
IAT Rationality TestThe IAT rationa
Page 89 and 90:
Ambient Air Temperature Sensor Inpu
Page 91 and 92:
Mass Air Flow Range PerformanceTTPS
Page 93 and 94:
5 Volt Sensor Reference Voltage A C
Page 95 and 96:
Idle Speed Control MonitorThe Idle
Page 97 and 98:
Knock SensorTwo basic diagnostic te
Page 99 and 100:
Ignition CoilThe purpose of this di
Page 101 and 102:
Crankshaft Position Sensor MonitorA
Page 103 and 104:
Each clutch system consists of:•
Page 105 and 106:
3. Shift drum A motor - controls th
Page 107 and 108:
The diagnostic executive controls t
Page 109 and 110:
EWMA ExamplesEWMA with FIR and SCL
Page 111:
Closed Loop Fuel Control Enable Con
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OBD Operation Summary for Fiesta - MotorCraftService.com

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