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
ETC System Failure Mode and Effects Management:EffectNo Effect on DriveabilityRPM Guard w/ PedalFollowerRPM Guard w/ DefaultThrottleRPM Guard w/ ForcedHigh IdleShutdownFailure ModeA loss of redundancy or loss of a non-critical input could result in a fault that does not affectdriveability. The ETC light will turn on, but the throttle control and torque control systems willfunction normally.In this mode, torque control is disabled due to the loss of a critical sensor or PCM fault. Thethrottle is controlled in pedal-follower mode as a function of the pedal position sensor inputonly. A maximum allowed RPM is determined based on pedal position (RPM Guard.) If theactual RPM exceeds this limit, spark and fuel are used to bring the RPM below the limit. TheETC light and the MIL are turned on in this mode and a P2106 is set. EGR, VCT, and IMRCoutputs are set to default values.In this mode, the throttle plate control is disabled due to the loss of Throttle Position, theThrottle Plate Position Controller, or other major Electronic Throttle Body fault. A defaultcommand is sent to the TPPC, or the H-bridge is disabled. Depending on the fault detected,the throttle plate is controlled or springs to the default (limp home) position. A maximumallowed RPM is determined based on pedal position (RPM Guard.) If the actual RPMexceeds this limit, spark and fuel are used to bring the RPM below the limit. The ETC lightand the MIL are turned on in this mode and a P2110 is set. EGR, VCT, and IMRC outputsare set to default values.This mode is caused by the loss of 2 or 3 pedal position sensor inputs due to sensor, wiring,or PCM faults. The system is unable to determine driver demand, and the throttle is controlledto a fixed high idle airflow. There is no response to the driver input. The maximum allowedRPM is a fixed value (RPM Guard.) If the actual RPM exceeds this limit, spark and fuel areused to bring the RPM below the limit. The ETC light and the MIL are turned on in this modeand a P2104 is set. EGR, VCT, and IMRC outputs are set to default values.If a significant processor fault is detected, the monitor will force vehicle shutdown by disablingall fuel injectors. The ETC light and the MIL may be turned on in this mode and a P2105 isset.Note: Vehicle shutdown does not increase emissions; therefore the MIL is not required to beilluminated for this fault.Note: ETC illuminates or displays a message on the message center immediately, MILilluminates after 2 driving cycles;#Electronic Throttle Monitor Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0606 - PCM processor failure (MIL, ETC light)P2106 – ETC FMEM – forced limited power; sensor fault: MAF, one TP, CKP, TSS,OSS, stuck throttle, throttle actuator circuit fault (MIL, ETC light)P2110 – ETC FMEM – forced limited rpm; two TPs failed; TPPC detected fault (MIL,ETC light)P2104 – ETC FMEM – forced idle, two or three pedal sensors failed (MIL, ETC light)P2105 – ETC FMEM – forced engine shutdown; EQuizzer detected fault (MIL, ETClight)U0300 – ETC software version mismatch, IPC, EQuizzer or TPPC (non-MIL, ETClight)ContinuousNonenot applicable< 1 seconds to register a malfunctionFORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 72 OF 131
0;#1Accelerator Pedal Position Sensor Check Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP2122, P2123 – APP D circuit continuity (ETC light, non-MIL)P2121 – APP D range/performance (ETC light, non-MIL)P2127, P2128 – APP E circuit continuity (ETC light, non-MIL)P2126 – APP E range/performance (ETC light, non-MIL)P2132, P2133 – APP F circuit continuity (ETC light, non-MIL)P2131 – APP F range/performance (ETC light, non-MIL)continuousnonenot applicable< 1 seconds to register a malfunctionAPP sensor check malfunction thresholds:Circuit continuity - Voltage < 0.25 volts or voltage > 4.75 voltsRange/performance – sensor disagreement between processors (PCM and EQuizzer)Throttle Position Sensor Check Operation:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0122, P0123 – TP A circuit continuity (MIL, ETC light)P0121 – TP A range/performance (non-MIL)P2135 – TP A / TP B correlation (ETC light, non-MIL)P0222, P0223 – TP B circuit continuity (MIL, ETC light)P0221 – TP B range/performance (non-MIL)ContinuousNonenot applicable< 1 seconds to register a malfunctionTP sensor check malfunction thresholds:Circuit continuity - Voltage < 0.25 volts or voltage > 4.75 voltsCorrelation and range/performance – sensor disagreement between processors (PCM and EQuizzer), TPinconsistent with TPPC throttle plate positionFORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 73 OF 131
- 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
- Page 56 and 57: Next, the differential pressure ind
- Page 58 and 59: I/M Readiness IndicationIf the infe
- Page 60 and 61: The Stepper Motor EGR Monitor consi
- Page 62 and 63: Note: BARO is inferred at engine st
- Page 64 and 65: $. 6The Electric Stepper Motor EGR
- Page 66 and 67: The MAP sensor is also checked for
- Page 68 and 69: When the entry conditions for the f
- Page 70 and 71: 1!2Ford plans to comply with the PC
- Page 74 and 75: ;#11!%;11!)The purpose of the TPPC
- Page 76 and 77: Currently, vehicles use either an E
- Page 78 and 79: Fuel Rail Pressure Sensor Check Ope
- Page 80 and 81: Loss of Keep Alive Memory (KAM) pow
- Page 82 and 83: CKP Ignition System Check Operation
- Page 84 and 85: The Idle Air Control (IAC) solenoid
- Page 86 and 87: There are several different styles
- Page 88 and 89: The PCM continually calculates a ca
- Page 90 and 91: Most vehicle applications no longer
- Page 92 and 93: Intermediate Shaft Speed Sensor Fun
- Page 94 and 95: Primary Pulley Speed Sensor Functio
- Page 96 and 97: Secondary Pulley Pressure Sensor Ch
- Page 98 and 99: Typical Shift Solenoid mechanical f
- Page 100 and 101: Shift Completion Check Operation:DT
- Page 102 and 103: Pressure Control Solenoid Check Ope
- Page 104 and 105: Forward Clutch/Reverse Clutch Solen
- Page 106 and 107: 4$=%$> );4R70E is the replacement f
- Page 108 and 109: ! 4%:> );;The Analog Transmission R
- Page 110 and 111: $%$> );;The Digital Transmission Ra
- Page 112 and 113: Direct One Way ClutchThe Direct One
- Page 114 and 115: Direct One Way ClutchThe Direct One
- Page 116 and 117: $&&> %$> );;Transmission Range Sens
- Page 118 and 119: 4:=%:.)%:> );;The Transmission Rang
- Page 120 and 121: CFT 30 Mechatronic Illustration;Tra
0;#1Accelerator Pedal Position Sensor Check <strong>Operation</strong>:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP2122, P2123 – APP D circuit continuity (ETC light, non-MIL)P2121 – APP D range/per<strong>for</strong>mance (ETC light, non-MIL)P2127, P2128 – APP E circuit continuity (ETC light, non-MIL)P2126 – APP E range/per<strong>for</strong>mance (ETC light, non-MIL)P2132, P2133 – APP F circuit continuity (ETC light, non-MIL)P2131 – APP F range/per<strong>for</strong>mance (ETC light, non-MIL)continuousnonenot applicable< 1 seconds to register a malfunctionAPP sensor check malfunction thresholds:Circuit continuity - Voltage < 0.25 volts or voltage > 4.75 voltsRange/per<strong>for</strong>mance – sensor disagreement between processors (PCM and EQuizzer)Throttle Position Sensor Check <strong>Operation</strong>:DTCsMonitor executionMonitor SequenceSensors OKMonitoring DurationP0122, P0123 – TP A circuit continuity (MIL, ETC light)P0121 – TP A range/per<strong>for</strong>mance (non-MIL)P2135 – TP A / TP B correlation (ETC light, non-MIL)P0222, P0223 – TP B circuit continuity (MIL, ETC light)P0221 – TP B range/per<strong>for</strong>mance (non-MIL)ContinuousNonenot applicable< 1 seconds to register a malfunctionTP sensor check malfunction thresholds:Circuit continuity - Voltage < 0.25 volts or voltage > 4.75 voltsCorrelation and range/per<strong>for</strong>mance – sensor disagreement between processors (PCM and EQuizzer), TPinconsistent with TPPC throttle plate positionFORD MOTOR COMPANY REVISION DATE: APRIL 28, 2004 PAGE 73 OF 131
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