2010 ASTON MARTIN V8 VANTAGE engine

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
P0300
to
P0308 Deviations in crankshaft
acceleration processed by
Neural Network Misfire
Monitor software and Catalyst
Temperature model Percentage misfire
required to exceed
Catalyst Damage
Temperature 1000 deg c
(1832 deg F) catalyst
damage threshold, per
engine bank Type A: See RPM/Load
Table FNMISPCT_97 %
Type A:
200 revs
(Continuous)Type A:
Footnote b)
Type A:
Footnote d)
Percentage misfire
required to exceed
emission thresholds Type B> 0.0323*100% Type B:
1000 revs
(Continuous)Type B/C:
Footnote a)
Type B:
Footnote c)
Percentage misfire
required to clear emission
pending code < 0.001 * 100 % Time since engine start,
value based on time and
IAT 0 + FNMISACT sec
(See Transfer Functions)
Time since PCM power up 0 sec
Time for NNMM
computation queue to fill 4 revs from initial crank
(Meets 2 rev start delay
requirement)
Engine coolant temp -7 - 115 deg C ( 20 - 240 degF )
Engine rpm 600 - 7250 rpm
Net engine torque > -81 Nm ( -60 ft lbs)
Engine torque rate of
change > -33.9Nm (-25 ft lbs/sec)
or
< 33.9Nm (25 ft lbs/sec)
Throttle position rate of
change > -30 volts/background
loop or
< 30 * 5/1024
volts/background loop
Engine rpm/load range See RPM/Load Table FNMISOK_97: Monitor
disabled when less than
0.5
Crankshaft position circuit
(PIP) OK (P0320)
Fuel shutoff for rpm or
vehicle speed limiting No fuel cutoff occurring
Fuel level > 0.15 * 100 %
Misfire Detected At
Startup P0316 Misfire detected during first
1000 engine revs since start P0316 is set in addition to
P0300 - P0308 DTC 1000 revs
(Continuous)Footnote a) Footnote c)
AICE chip failure in
PCM P0606 NNMM chip to CPU
communication fault Number of attempts 10
Continuous Footnote a) Footnote c)
Camshaft/crankshaft
synchronization
failure P1336 AICE chip reports inability to
synchronize camshaft and
crankshaft signals
(Replaces P1309) Number of attempts > 255
Continuous Footnote a) Footnote c)
Engine speed >1550rpm
<2275rpm
Engine load >0.075
<0.225
Engine coolant
temperature >68.3degC (155degF)
Transmission in 6th gear
Vehicle speed >30mph
<70mph
Maximum rate of engine
speed change <500rpm/second
In decel fuel cut
ROM checksum error P260F NNP ROM checksum error Checksum from NNP does not equal mainline
strategyNone
Continuous Footnote a) Footnote c)
Cylinder Misfire
DetectedMisfire Monitor
Footnote c)
Unable to learn
crankshaft profile P0315 Unable to learn stable
crankshaft profile Number of attempts > 6 attempts Continuous within
profile learning
entry conditionsFootnote a)
2

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
Long term fuel trim cell
currently being utilized
exceeds lean limits > 1.225 * 100 % Engine rpm
550 - 8000 rpmContinuous Footnote a) Footnote c)
Short term fuel trim
exceeds lean limits < 0.99 * 100%
Long term fuel trim cell
currently being utilized
exceeds rich limits < 0.805 * 100 % Engine air mass
0 - 484 g/sec
(0 - 63.99 lbs/min)
Short term fuel trim
exceeds rich limits > 1.1 * 100 % Coolant temp and ECT
sensor OK (P0117/0118) 44.4C < Engine coolant <
110C (112 - 230F)
Intake air temp and IAT
sensor OK (P0112/0113) -28.8C < Intake air <
93.3C (-20 - 200F)
Fuel level >0.15*100%
Closed loop fuel, adaptive
fuel learning enabled
(Purge dutycycle = 0 %) Fuel trim learning enabled
P0174
(Bank 2 Lean) Fuel Rail Pressure sensor
OK (P0190/0192/0193)
P0175
(Bank 2 Rich) Fuel trim learning enabled
Time since engine start > FN_TCSTRT sec
(See Function)
Inferred HO2S temp > 300 deg C (> 572 deg F)
(Temp based on inferred
exhaust temp model which
is a function of IAT, ECT,
MAF, commanded A/F
ratio and engine rpm)
Time within test entry
conditions See Transfer Function
FN654SVehicle speed
See transfer function
FNWUT_VS Once per driving
cycle
Engine coolant temp See transfer function FNECTWUTEngine load
See transfer function
FNWUT_LD
Minimum soak time > 60 min
Entry Conditions for Closed Loop Fuel
Thermostat MonitorInitial Closed Loop
Fuel Entry Condition Note: Long term fuel trim
corrections are learned into
an 8x10 cell table as a
function of rpm and load
or
an 8x1 cell table as a function
of rpm and air mass
P0172
(Bank 1 Rich)
Fuel System MonitorFuel System Too
Rich Or Too Lean
P0171
(Bank 1 Lean)Excessive long and short term
fuel trim corrections
Footnote c)
Insufficient Coolant
Temperature For
Closed Loop Fuel
Control P0128 Time to reach minimum
engine coolant temp Footnote a)
3

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
off/on <0.524 Intake air temp sensor OK (P0112/0113) Continuous during
SAIR operation
on/off <0.671 Engine coolant temp sensor OK (P0117/0118)
Mass Air Flow sensor OK
(P0101 to P010F)
First switch correction <
threshold * corrected SAIR
flow <1+(0.246*Long term
fuel trim)
Time in closed loop
fuelling control (only used
for bank to bank flow
arbitration) >10seconds
off/on <0.524 Intake air temp sensor OK (P0112/0113)
on/off <0.671 Engine coolant temp sensor OK (P0117/0118)
Mass Air Flow sensor OK
(P0101 to P010F)
Closed loop bank1 vs bank2
lambda difference Lambda difference>
threshold AND bank1
lambda > bank2 lambdalambda
difference>0.435
Not in HEGO FMEM
First switch correction <
threshold * corrected SAIR
flow <1+(0.246*Long term
fuel trim)
Time in closed loop
fuelling control (only used
for bank to bank flow
arbitration) >10seconds
off/on <0.524 Intake air temp sensor OK (P0112/0113)
on/off <0.671 Engine coolant temp sensor OK (P0117/0118)
Mass Air Flow sensor OK
(P0101 to P010F)
Closed loop bank1 vs bank2
lambda difference Lambda difference>
threshold AND bank1
lambda < bank2 lambdalambda
difference>0.435
HEGO monitor complete
P2448 (Low
flow Bank1)
P2449
(Low flow
Bank2) SAIR off time before re-
enable (if SAIR is disabled
due to engine conditions)>3seconds
Time in closed loop
fuelling control (only used
for bank to bank flow
arbitration) >10seconds
HEGO monitor complete
SAIR circuit ecu
output high/low P0412 Circuit malfunction
PCM able to determine
failure Time with fault>5
seconds
SAIR circuit relay
high output P2257 Circuit malfunction
PCM able to determine
failure Time with fault>5
seconds
SAIR circuit relay low
output P2258 Circuit malfunction
PCM able to determine
failure Time with fault>5
seconds
Ratio of SAIR flow
difference at SAIR pump
off / on and on/off
transition
Modelled pump flow higher
than measured flow via HFM
Ratio of SAIR flow
difference at SAIR pump
off / on and on/off
transition
Ratio of SAIR flow
difference at SAIR pump
off / on and on/off
transition
>2secondsFootnote c)
Approximately 500
sec during
appropriate FTP74
conditions to
complete HEGO
monitorSecondary Air Monitor
Modelled pump flow higher
than measured flow via HFM Ratio of SAIR flow
difference at SAIR pump
off / on transitionoff/on >1.44
Outlet Hose
Disconnection Footnote l)
Continuous
(circuit checks)
Outlet Hose
Blockage
P0492
(Low flow
Bank2)
P0410
(Inlet hose
disconnection)
Secondary Air
System Insufficient
Flow
Closed loop bank1 lambda
correction at first switch AND
low measured flow via HFM
Closed loop bank2 lambda
correction at first switch AND
low measured flow via HFM
P0491
(Low flow
Bank1)
Time with SAIR active
4

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
EGR duty cycle egrdc>0.2*100
EGR valve valve warm cumulative time with egr enabled > 40 seconds
Time with circuit
malfunction >2 seconds
Signal circuit voltage <0.049 (4.8kPa) 10*(5/1024)Ambient Temperature > -7c (20f)
Time with circuit
malfunction >2.5 seconds
Signal circuit voltage >4.956 (115.25kPa) 1015*(5/1024)Ambient Temperature > -7c (20f)
Time with circuit
malfunction >2.5 seconds
Pressure differential >
Pressure differential at
engine off + offset > 0.366 volts
75*(5/1024)
EGR valve warm cumulative time with egr
enabled > 40 seconds
Forced valve actuation
complete 2
P0403 test complete and
no fault
Time exceeding threshold >5 seconds P0405 test complete and
no fault
P0406 test complete and
no fault
Ambient Temperature > -7c (20f)
EGR valve commanded
shut >1.5seconds
In idle speed control
Low pressure differential egrdc>0.75*100
Time with fault >0.7*50 seconds Manifold vacuum > 20.3 kPa (6"Hg)
Ambient Temperature > -7c (20f)
Not in transient condition
(air charge rate of change) < 0.04 (lb/stk)
Engine speed <3000rpm
Air mass <60.47g/sec (8lb/min)
P0403 test complete and
no fault
P0405 test complete and
no fault
P0406 test complete and
no fault
P0402 test complete and
no fault
P0402 EGR
Excess Flow
Excessive pressure differential
across EGR orifice at idle
Electronic Vacuum
Regulator (EVR)
Electrical
P0403 Circuit Malfunction - Short to
Vbat PCM able to determine
failure
Footnote
c+f)
Footnote
c+f)
Footnote a) Footnote
c+f)
Continuous
Continuous Footnote a) Footnote
c+f)
Once per driving
cycle
Footnote a)ESM (EGR System Module) Exhaust Gas Recirculation Monitor
P0401 EGR
Restricted flowLow pressure differential
across EGR orifice with high
valve duty commanded Footnote a)
Once per driving
cycle
Pressure Differential
Sensor
P0405 Low
Input
P0406 Low
InputCircuit malfunction
Circuit malfunction
EGR Valve
Footnote
c+f)
Once per driving
cycle Footnote a)
5

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
PCM able to determine
failure
Time with failure >5seconds
PCM able to determine
failure
Time with failure >5seconds
P0011 (Bank1) Cam position error vs
target >12.4deg CRK Engine coolant
temperature >-7c (20f)
P0021 (Bank2) Cam position error bank1
vs bank2 >16deg CRK Engine oil temperature >-7c (20f)
<121c (250f)
Time exceeding threshold >5 seconds Cam angle sensitivity
modifier for cam position
bank1 vs bank2 CAM_RANGE_SENS
(See function)
Cam angle error filter for
target error calculation FNCAM_ACT_FK
(See function)
Filter for target error
calculation 0.25*100%
Intake air temp sensor OK
(P0112/0113)
Engine coolant temp
sensor OK (P0117/0118)
Engine oil temp sensor OK
(P0197/0198)
Throttle Position Sensor
OK (P0122/0123)
Crankshaft position circuit
(PIP) OK (P0320)
Mass Air Flow sensor OK
(P0101 to P010F)
Camshaft ID circuit (CMP)
OK (P0340)
P0012
(Bank1) Cam position error vs
target>12.4deg CRK Engine coolant
temperature >-7c (20f)
P0022 (Bank2) Cam position error bank1
vs bank2 >16deg CRK Engine oil temperature >-7c (20f)
<121c (250f)
Time exceeding threshold >5 seconds Cam angle sensitivity
modifier for cam position
bank1 vs bank2 CAM_RANGE_SENS
(See function)
Cam angle error filter for
target error calculation FNCAM_ACT_FK
(See function)
Filter for target error
calculation 0.25*100%
Intake air temp sensor OK
(P0112/0113)
Engine coolant temp
sensor OK (P0117/0118)
Engine oil temp sensor OK
(P0197/0198)
Throttle Position Sensor
OK (P0122/0123)
Crankshaft position circuit
(PIP) OK (P0320)
Mass Air Flow sensor OK
(P0101 to P010F)
Camshaft ID circuit (CMP)
OK (P0340)
P0016
(Bank1) Engine speed
>600rpm
<1100rpm
P0018
(Bank2) Indicated torque
>25 Nm (18.4ftlb)
<95 Nm (70ftlb)
Time after start >25sec
<16383sec
Engine coolant
temperature >71.1degC (160degF)
<104.4degC (220degF)
Filter for position error 1.5
Air charge temperature >-17.7degC (0degF) <65.5degC (150degF)
Circuit MalfunctionVariable Cam Timing MonitorContinuous Footnote a) Footnote c)
VCT actuator
malfunction P0010 (Bank1)
P0020(Bank2)
VCT target error Measured Cam Position Over
advanced
VCT target error Measured Cam Position Over
retarded
Footnote c)
>8deg CRK Once per driving
cycle Footnote a)
Circuit Malfunction
CAM / CRANK
Misalignment Cam position error
Measured Cam Position with
VCT locked fully retarded
6

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
P2195
(Bank 1,
Sensor 1) Stage 1:
(Look for short term fuel
trim stuck) Fuel control Closed loop or
Closed loop desired
P2197
(Bank 2,
Sensor 1) Short term fuel trim > 1 - 0.26 * 100% Intake air temp sensor OK
(P0112/0113)
Time with short term fuel
trim at limit > 20 * 1 sec
Engine coolant temp
sensor OK (P0117/0118)
Stage 2:
(Look for HO2S stuck at
startup) Mass Air Flow sensor OK
(P0102/0103)
Cumulative time in test
mode since start up > 30 sec
Throttle Position Sensor
OK (P0122/0123)
Number of switches since
start up < 6
Fuel control In FMEM at start up Fuel level above minimum
level > 0.15 * 100 %
Time entry conditions have
been present > 10 sec
P2196
(Bank 1,
Sensor 1) Stage 1:
(Look for short term fuel
trim stuck) Fuel control
Closed loop or
Closed loop desired
P2198
(Bank 2,
Sensor 1) Short term fuel trim > 1 + 0.26 * 100% Intake air temp sensor OK
(P0112/0113)
Time with short term fuel
trim at limit > 20 * 1 sec
Engine coolant temp
sensor OK (P0117/0118)
Stage 2:
(Look for HO2S stuck at
startup) Mass Air Flow sensor OK
(P0102/0103)
Cumulative time in test
mode since start up > 30 sec
Throttle Position Sensor
OK (P0122/0123)
Number of switches since
start up < 6
Fuel control In FMEM at start up Fuel level above minimum
level > 0.15 * 100 %
Time entry conditions have
been present > 10 sec
Voltage greater than
malfunction threshold > 1.1 volts
Fuel control Closed loop or
Closed loop desired
Time with sensor voltage
out of range > 18 sec
Stream 1 HO2S:
Inferred sensor temp > 204 deg C
(> 400 deg F)
HO2S heater OK
(P0135, P0053-bank1)
(P0155, P0059-bank2)
P0133
(Bank 1) Switching frequency
(Indicates gross failure)< 0.0 Hz
Time since entering closed
loop fuel control > 10 sec
P0153
(Bank 2) Switching frequency
difference from desired
(Test run at correct
frequency)< 0.44875 Hz Short term fuel trim 0.85 - 1.15 * 100 %
Signal voltage amplitude < 0.518 volts Engine coolant temp and ECT sensor OK
(P0117/0118)65 - 116 deg C
(150 - 240 deg F)
Fuel level above minimum
level > 0.15 * 100 %
Intake air temp and IAT
sensor OK (P0112/0113) < 60 deg C
(< 140 deg F)
Engine load and MAF
sensor OK (P0102/0103) 0.2 - 0.4 * 100 %
Vehicle speed and
VSS (P0500) sensor OK 37 - 65 mph
Engine rpm and
crankshaft position circuit
(PIP) OK (P0230) 1800 - 2450 rpm
Throttle position sensor
OK (P0122/0123)
Camshaft ID circuit (CMP)
OK (P0340)
No Misfire Monitor DTCs
Fuel rail pressure sensor
OK (P0190/0192/0193)
Not transitioning into/out of
Characteristic Shift Down
No Purge System reset
Maximum change in
engine rpm while running
it
< 165 rpm
Maximum change in
engine load while running
monitor < 0.11 * 100%
Maximum change in
vehicle speed while
running monitor < 10 mphContinuous
Footnote a)
Footnote a)
Monitor HO2S voltage Footnote a) Footnote c)
Stream 1 (Front)
HO2S Overvoltage
< 8 sec once per
driving cycle
Stream 1 (Front)
HO2S Circuit Slow
Response Monitor HO2S switching
frequency and amplitude
(Forced at 1.5 Hz fixed rate)
P0132
(Bank 1)
P0152
(Bank 2)
Continuous Footnote a) Footnote c)Footnote c)
Continuous
Stream 1 (Front) O2
Sensor Signal Stuck
Lean
Lack of HO2S switches
Lack of HO2S switches
HO2S Monitor
Footnote c)
Stream 1 (Front) O2
Sensor Signal Stuck
Rich
7

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
P2270
(Bank 1) Inferred exhaust temp 71 - 792 deg C
(160 - 1458 deg F)
P2272
(Bank 2) Downstream heater on
time> 120 sec
Pedal position Part throttle
Engine rpm - for forced
excursion only > 1200 rpm
Inferred exhaust temp - for
forced excursion only < 815 deg C
(< 1500 deg F)
Flex fuel composition not
changing
Upstream sensor(s) tested
P2271
(Bank 1) Inferred exhaust temp 71 - 792 deg C
(160 - 1458 deg F)
P2273
(Bank 2) Downstream heater on
time> 120 sec
Pedal position Part throttle
Engine rpm - for forced
excursion only > 1200 rpm
Inferred exhaust temp - for
forced excursion only < 815 deg C
(< 1500 deg F)
Flex fuel composition not
changing
Upstream sensor(s) tested
Voltage greater than
malfunction threshold > 1.1 volts
Stream 2 HO2S heater on
time > 90 sec
Time with sensor voltage
out of range > 18 sec
Stream 2 HO2S:
Inferred sensor temp > 204 deg C
(> 400 deg F)
HO2S heater OK
(P0141, P0054-bank1)
(P0161, P0060-bank2)
P0135
(HO2S11) Circuit continuity check,
monitor voltage for opens and
shorts Feedback circuit state
matches commanded
output state (Digital
signal)Feedback circuit high
or low
Stream 1 HO2S:
Inferred sensor temp 26.6 - 630.5 deg C
(80 - 1167 deg F)
P0155
(HO2S21) Monitor retries allowed for
malfunction
(Background loops)RETRY_ALLOW
P0053
(HO2S11) Functional check, monitor
min. and max. heater current Heater circuit current < 0.465 amps or
> 3.0 ampsStream 1 HO2S:
Inferred sensor temp 121 - 593 deg C
(250 - 1100 deg F)Once per driving
cycle
Stream 1 HO2S heater on
time > 30 sec
Stream 1 sensor(s) tested
(P0133/P0153 tests
completed)
Stream2 sensor (s) tested
P0136, P0156
P0141
(HO2S12) Circuit continuity check,
monitor voltage for opens and
shorts Feedback circuit state
matches commanded
output state (Digital
signal)Feedback circuit high
or low
Stream 2 HO2S:
Inferred sensor temp 149 - 760 deg C
(300 - 1400 deg F)Continuous
P0161
(HO2S22) Monitor retries allowed for
malfunction
(Background loops)RETRY_ALLOW
P0054
(HO2S12) Functional check, monitor
min. and max. heater current Heater circuit current < 0.22 amps
Stream 2 HO2S:
Inferred sensor temp 121 - 732 deg C
(250 - 1350 deg F)Once per driving
cycle
> 3.0 amps Stream 2 HO2S heater on
time > 30 sec
Stream 1 sensor(s) tested
(P0133/P0153 tests
completed)
Stream2 sensor (s) tested
P0136, P0156
HO2S Heater Circuit
Malfunction
P0060
(HO2S22) Footnote a)
Continuous
Footnote a)
Once per driving
cycle
Once per driving
cycle
Monitor normal signal voltage
envelope; forced A/F
excursion if required for green
catalyst
(Rationality check)
Footnote c)
P0059
(HO2S21)
Stream 2 (CMS)
HO2S Overvoltage
P0138
(Bank 1)
P0158
(Bank 2)Monitor HO2S voltage
Monitor normal signal voltage
envelope; forced A/F
excursion if required for green
catalyst
(Rationality check)
Rear HO2S Circuit
Malfunction
HO2S minimum signal
voltages stuck rich> 0.42 volts
HO2S maximum signal
voltages stuck lean
< 0.48 volts
Footnote c)
Footnote a)
Footnote a)
Footnote c)
Footnote c)
Continuous
8

Aston Martin V8 Vantage 2009 MY EOBD DocumentationAston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ation
Vehicle speed VSS
(P0500) sensor OK
Throttle position sensor
TPS OK (P0122/0123)
Vehicle speed and TPS in
range VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
MAF1+MAF2
max(30.23g/sec) OR
(0.35*estimate) Vehicle speed VSS
(P0500) sensor OK
MAF1< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Throttle position sensor
TPS OK (P0122/0123)
Vehicle speed and TPS in
range
VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
Sensor signal voltage < 0.024 volts (0g/sec) Time since last PIP signal (Engine not stalled)< 150 msec
Fault filter routine > 1 sec
Sensor signal voltage > 4.88 volts (293g/sec) Time since last PIP signal (Engine not stalled)< 150 msec
Fault filter routine > 1 sec MAF1+MAF2
max(30.23g/sec) OR
(0.35*estimate)Vehicle speed VSS
(P0500) sensor OK
MAF1< 0.5*estimate -
max (0.5*30.23g/sec) Throttle position sensor
TPS OK (P0122/0123)
MAF2< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Vehicle speed and TPS in
range
VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
Vehicle speed VSS
(P0500) sensor OK
Throttle position sensor
TPS OK (P0122/0123)
Vehicle speed and TPS in
range VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
MAF1+MAF2
max(xg/sec) OR
(0.35*estimate) Vehicle speed VSS
(P0500) sensor OK
MAF2< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Throttle position sensor
TPS OK (P0122/0123)
Vehicle speed and TPS in
range
VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
Sensor signal voltage < 0.024 volts (0g/sec) Time since last PIP signal (Engine not stalled)< 150 msec
Fault filter routine > 1 sec
Sensor signal voltage > 4.88 volts (293g/sec) Time since last PIP signal (Engine not stalled)< 150 msec
Fault filter routine > 1 sec MAF1+MAF2
max(30.23g/sec) OR
(0.35*estimate)Vehicle speed VSS
(P0500) sensor OK
MAF1< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Throttle position sensor
TPS OK (P0122/0123)
MAF2< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Vehicle speed and TPS in
range
VSS<30mph OR
TPS>5.27deg (60cnts)
Battery Voltage 11< Voltage <18
SAIR not commanded >3 seconds
Time with fault >5 seconds
P010F
(MAFA/B
Correlation) Rationality Check
MAF codes raised P0100,P0101,P0104,
P010A,P010B,P010ETime with fault
>5 secondsComprehensive Component Monitor
MAF2 voltage < 0.024
(0g/sec) Continuous
P0100 (MAF A
Airpath) Rationality Check - Compares
measured MAF vs modelled
airflow MAF1 vs MAF2 low airflow
Circuit Check
P0103 (High) MAF1< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate))
MAF1+MAF2 not equal to
estimate AND MAF1 vs
MAF2 low airflow
MAF Sensor Input
Circuit Check
P0104
(Backflow) Rationality Check
P0101 (MAF A
Range)
Rationality Check - Compares
measured MAF vs modelled
airflow
P010E
Backflow) Rationality Check
P0102 (Low)
MAF1 voltage < 0.024
(0g/sec)
P010A (MAF B
Airpath)
P010B MAF B
Range) Rationality Check - Compares
measured MAF vs modelled
airflow
Rationality Check - Compares
measured MAF vs modelled
airflow
MAF1+MAF2 not equal to
estimate AND MAF2 vs
MAF1 low airflow
MAF2 vs MAF1 low airflow MAF2< 0.5*estimate -
max (0.5*30.23g/sec)
OR (0.35*
(0.5*estimate)) Footnote a)
MAF1+MAF2 not equal to
estimate AND MAF1 & 2
do not equal estimate.
MAF2 voltage low.
P010C (Low) Circuit Check
Circuit Check
P010D (High) MAF1+MAF2 not equal to
estimate AND MAF1 & 2
do not equal estimate.
MAF1 voltage low.
Footnote c)
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