2002 MY OBD-II System Operation Summary - MotorCraftService.com
2002 MY OBD-II System Operation Summary - MotorCraftService.com 2002 MY OBD-II System Operation Summary - MotorCraftService.com
Comprehensive Component Monitor - TransmissionGeneralThe MIL is illuminated for all emissions related electrical component malfunctions. For malfunctions attributable toa mechanical component (such as a clutch, gear, band, valve, etc.), some transmissions are capable of notcommanding the mechanically failed component and providing the remaining maximum functionality (functionalityis reassessed on each power up)- in such case a non-MIL Diagnostic Trouble Code (DTC) will be stored and, ifso equipped, a Transmission Control Indicator Light (TCIL) will flash.Transmission InputsTransmission Range Sensor Check Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0708, P0705 (open/invalid pattern for digital TRS)P0707, P0708 (opens/shorts for analog TRS)ContinuousNone30 secondsTypical TRS check entry conditions:Auto Transmission Entry Conditions Minimum MaximumGear selector position each position for up to 30 seconds 480 secondsTypical TRS malfunction thresholds:For digital sensor: Invalid pattern from 3 or 5 digital inputs and/or 1 analog circuit open for 5 secondsFor analog sensor: Voltage > 4.8 volts or < 0.2 voltage for 5 secondsFORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 44 OF 66
Most vehicle applications no longer have a standalone vehicle speed sensor input. The PCM sometimes obtainsvehicle speed information from another module on the vehicle, i.e. ABS module. In most cases, however, vehiclespeed is calculated in the PCM by using the transmission output shaft speed sensor signal and applying aconversion factor for axle ratio and tire programmed into the Vehicle ID block. A Vehicle Speed Output pin on thePCM provides the rest of the vehicle with the standard 8,000 pulses/mile signal.Note: If the Vehicle ID block has not been programmed or has been programmed with an out-of-range (uncertified)tire/axle ratio, a P1639 DTC will be stored and the MIL will be illuminated immediately.Vehicle Speed Sensor Functional Check Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0500ContinuousNone30 secondsTypical VSS functional check entry conditions:Auto Transmission Entry Conditions Minimum MaximumGear selector positionEngine rpm (above converter stall speed) ORTurbine shaft rpm (if available) OROutput shaft rpmVehicle speed (if available)drive3000 rpm1500 rpm650 rpm15 mphManual Transmission Entry ConditionsEngine load 50 %Engine rpm2400 rpmTypical VSS functional check malfunction thresholds:Vehicle is inferred to be moving with positive driving torque and VSS is < 1 - 5 mph for 5 secondsFORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 45 OF 66
- Page 2: 4R70W (RWD) Transmission ..........
- Page 6 and 7: TYPICAL INDEX RATIO CATALYST MONITO
- Page 8 and 9: Misfire MonitorThere are two differ
- Page 10 and 11: Misfire Monitor Operation:DTCsMonit
- Page 12 and 13: AIR System MonitorThe secondary air
- Page 14 and 15: leed-up criteria is exceeded on thr
- Page 16 and 17: EVAP System Monitor - 0.020” dia.
- Page 18 and 19: Ford’s 0.020” evaporative syste
- Page 20 and 21: Typical 0.020” EVAP abort (fuel s
- Page 22 and 23: Additional malfunctions that are be
- Page 24: HO2S MonitorFront HO2S SignalThe ti
- Page 27 and 28: HO2S Heaters, front and rearThe HO2
- Page 29 and 30: In the 2002 MY, Ford will introduce
- Page 31 and 32: After the vehicle is started, durin
- Page 33 and 34: Finally, the differential pressure
- Page 35 and 36: EGR flow is monitored using an anal
- Page 37 and 38: Typical EGR flow check entry condit
- Page 39 and 40: Comprehensive Component Monitor - E
- Page 41 and 42: Ignition System Check Operation:DTC
- Page 43: The Intake Manifold Runner Control
- Page 47 and 48: Transmission Fluid Temperature Sens
- Page 49 and 50: Torque Converter Clutch Check Opera
- Page 51 and 52: 4R70W (RWD) Transmission(no turbine
- Page 53 and 54: CD4E (FWD) Transmission(has turbine
- Page 55 and 56: 5R55E (RWD) Transmission(has turbin
- Page 57 and 58: Direct One Way ClutchThe Direct One
- Page 59 and 60: Direct One Way ClutchThe Direct One
- Page 61 and 62: 4F27E (FN) (FWD) Transmission(has t
- Page 63 and 64: Exponentially Weighted Moving Avera
- Page 65 and 66: I/M Readiness CodeThe readiness fun
Comprehensive Component Monitor - TransmissionGeneralThe MIL is illuminated for all emissions related electrical <strong>com</strong>ponent malfunctions. For malfunctions attributable toa mechanical <strong>com</strong>ponent (such as a clutch, gear, band, valve, etc.), some transmissions are capable of not<strong>com</strong>manding the mechanically failed <strong>com</strong>ponent and providing the remaining maximum functionality (functionalityis reassessed on each power up)- in such case a non-MIL Diagnostic Trouble Code (DTC) will be stored and, ifso equipped, a Transmission Control Indicator Light (TCIL) will flash.Transmission InputsTransmission Range Sensor Check <strong>Operation</strong>:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0708, P0705 (open/invalid pattern for digital TRS)P0707, P0708 (opens/shorts for analog TRS)ContinuousNone30 secondsTypical TRS check entry conditions:Auto Transmission Entry Conditions Minimum MaximumGear selector position each position for up to 30 seconds 480 secondsTypical TRS malfunction thresholds:For digital sensor: Invalid pattern from 3 or 5 digital inputs and/or 1 analog circuit open for 5 secondsFor analog sensor: Voltage > 4.8 volts or < 0.2 voltage for 5 secondsFORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 44 OF 66
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