2005 MY OBD System Operation Summary for Gasoline Engines
2005 MY OBD System Operation Summary for Gasoline Engines 2005 MY OBD System Operation Summary for Gasoline Engines
TYPICAL INDEX RATIO CATALYST MONITOR ENTRY CONDITIONS:Entry condition Minimum MaximumTime since engine start-up (70 o F start)330 secondsEngine Coolant Temp 170 o F 230 o FIntake Air Temp 20 o F 180 o FTime since entering closed loop fuelInferred Rear HO2S sensor Temperature30 sec900 o FEGR flow (Note: an EGR fault disables EGR) 1% 12%Throttle Position Part Throttle Part ThrottleRate of Change of Throttle Position 0.2 volts /0.050 secVehicle Speed 5 mph 70 mphFuel Level 15%First Air Mass Cell 1.0 lb/min 2.0 lb/minEngine RPM for first air mass cell 1,000 rpm 1,300 rpmEngine Load for first air mass cell 15% 35%Monitored catalyst mid-bed temp. (inferred) for first air mass cell 850 o F 1,200 o FNumber of front O2 switches required for first air mass cell 50Second Air Mass Cell 2.0 lb/min 3.0 lb/minEngine RPM for second air mass cell 1,200 rpm 1,500 rpmEngine Load for second air mass cell 20% 35%Monitored catalyst mid-bed temp. (inferred) for second air mass cell 900 o F 1,250 o FNumber of front O2 switches required for second air mass cell 70Third Air Mass Cell 3.0 lb/min 4.0 lb/minEngine RPM for third air mass cell 1,300 rpm 1,600 rpmEngine Load for third air mass cell 20% 40%Monitored catalyst mid-bed temp. (inferred) for third air mass cell 950 o F 1,300 o FNumber of front O2 switches required for third air mass cell 30(Note: Engine rpm and load values for each air mass cell can vary as a function of the power-to-weight ratioof the engine, transmission and axle gearing and tire size.)TYPICAL MALFUNCTION THRESHOLDS:Rear-to-front O2 sensor switch/index-ratio > 0.75 (bank monitor)Rear-to-front O2 sensor switch/index-ratio > 0.60 (Y-pipe monitor)Rear-to-front O2 sensor switch/index ratio > 0.50 for E10 to > 0.90 for E85 (flex fuel vehicles)FORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 6 OF 131
J1979 CATALYST MONITOR MODE $06 DATATest ID Comp ID Description for J1850 Units$10 $11 Bank 1 switch-ratio and max. limit unitless$10 $21 Bank 2 switch-ratio and max. limit unitless$10 $10 Bank 1 index-ratio and max. limit unitless$10 $20 Bank 2 index-ratio and max. limit unitlessMonitor ID Test ID Description for CAN$21 $80 Bank 1 index-ratio and max. limit unitless$22 $80 Bank 2 index-ratio and max. limit unitlessConversion for J1850 Test ID $10: multiply by 0.0156 to get a value from 0 to 1.0** NOTE: In this document, a monitor or sensor is considered OK if there are no DTCs stored for that componentor system at the time the monitor is running.FORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 7 OF 131
- Page 1: Table of ContentsIntroduction - OBD
- Page 4 and 5: !The Catalyst Efficiency Monitor us
- Page 8 and 9: There are three different misfire m
- Page 10 and 11: 0#1The acceleration that a piston u
- Page 12 and 13: J1979 Misfire Mode $06 DataTest ID
- Page 14 and 15: 0$Secondary air systems typically u
- Page 16 and 17: 201 34536/#/Vehicles that meet enha
- Page 18 and 19: 0.040” EVAP Monitor Operation:DTC
- Page 20 and 21: 201 3536/#/Some vehicles that meet
- Page 22 and 23: slosh. If the monitor aborts, it wi
- Page 24 and 25: 0.020” EVAP Monitor Operation:DTC
- Page 26 and 27: Test ID Comp ID Description for J18
- Page 28 and 29: Ford's EONV implementation for Cali
- Page 30 and 31: 1#4;!In this phase, the EONV test i
- Page 32 and 33: 0.020” EONV EVAP Monitor Operatio
- Page 34 and 35: 201!!#/Additional malfunctions that
- Page 36 and 37: Fuel Tank Pressures Sensor Offset C
- Page 38 and 39: :As fuel system components age or o
- Page 40 and 41: -:-The time between HO2S switches i
- Page 42 and 43: $-A functional test of the rear HO2
- Page 44 and 45: -- 3 amps, (NTK)< 0.400 amps or > 3
- Page 46 and 47: 1:$The Delta Pressure Feedback EGR
- Page 48 and 49: If an EGR system malfunction is det
- Page 50 and 51: After the vehicle has warmed up and
- Page 52 and 53: 1:$In the 2002.5 MY, Ford introduce
- Page 54 and 55: The ESM may provide the PCM with a
J1979 CATALYST MONITOR MODE $06 DATATest ID Comp ID Description <strong>for</strong> J1850 Units$10 $11 Bank 1 switch-ratio and max. limit unitless$10 $21 Bank 2 switch-ratio and max. limit unitless$10 $10 Bank 1 index-ratio and max. limit unitless$10 $20 Bank 2 index-ratio and max. limit unitlessMonitor ID Test ID Description <strong>for</strong> CAN$21 $80 Bank 1 index-ratio and max. limit unitless$22 $80 Bank 2 index-ratio and max. limit unitlessConversion <strong>for</strong> J1850 Test ID $10: multiply by 0.0156 to get a value from 0 to 1.0** NOTE: In this document, a monitor or sensor is considered OK if there are no DTCs stored <strong>for</strong> that componentor system at the time the monitor is running.FORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 7 OF 131
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