Aston Martin V12 Family
2009 MY V12 Family EOBDincl. V12 Vantage
Aston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ationStream 1 (Front)
HO2S Overvoltage P0132
(Bank 1)
P0152
(Bank 2)Monitor HO2S voltage Voltage greater than
malfunction threshold> 1.1 volts
Fuel control Closed loop or
Closed loop desired Continuous Footnote a) Footnote c)
Time with sensor voltage
out of range > 25 sec
Stream 1 HO2S:
Inferred sensor temp > 204 deg C
(> 400 deg F)
HO2S heater OK
(P0135, P0053-bank1)
(P0155, P0059-bank2)
Rear HO2S Circuit
Malfunction P0136
(Bank 1)Monitor normal signal voltage
envelope; forced A/F
excursion if required for green
catalyst
(Rationality check) HO2S min and max signal
voltages
Rich- < 0.48 volts
Lean- > 0.42 voltsInferred exhaust temp 149 - 760 deg C
(300 - 1400 deg F)Once per driving
cycleFootnote a) Footnote c)
P0156
(Bank 2) Downstream heater on
time> 90 sec
Throttle position Part throttle
Engine rpm - for forced
excursion only > 1000 rpm
Inferred exhaust temp - fo
r
forced excursion only < 871 deg C
(< 1600 deg F)
Flex fuel composition not
changing
Upstream sensor(s) tested
7
Aston Martin V12 Family
2009 MY V12 Family EOBDincl. V12 Vantage
Aston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ationStream 2 (CMS) O2
Sensor signal Stuck
Lean P2270
(Bank 1)
Monitor normal signal voltage
envelope; forced A/F
excursion if required for green
catalyst
(Rationality check) HO2S maximum signal
voltage
< 0.42 volts Inferred exhaust temp 149 - 760 deg C
(300 - 1400 deg F)Once per driving
cycleFootnote a) Footnote c)
P2272
(Bank 2) Stream 2 heater on time > 90 sec
Fuel level above minimum
level> 0.15 * 100 %
Throttle position Part throttle
Engine rpm - for forced
excursion only > 1000 rpm
Inferred exhaust temp - fo
r
forced excursion only < 871 deg C
(< 1600 deg F)
Flex fuel composition not
changing
Upstream sensor(s) tested
Stream 2 (CMS) O2
Sensor signal Stuck
Rich P2271
(Bank 1)
HO2S minimum signal
voltage> 0.48 volts Inferred exhaust temp 149 - 760 deg C
(300 - 1400 deg F)Once per driving
cycleFootnote a) Footnote c)
P2273
(Bank 2) Stream 2 heater on time > 90 sec
Fuel level above minimum
level> 0.15 * 100 %
Throttle position Part throttle
Engine rpm - for forced
excursion only > 1000 rpm
Inferred exhaust temp - fo
r
forced excursion only < 871 deg C
(< 1600 deg F)
Flex fuel composition not
changing
Upstream sensor(s) tested
Stream 2 (CMS)
HO2S Overvoltage Monitor HO2S voltage Voltage greater than
malfunction threshold> 1.1 volts
Stream 2 HO2S heater on
time > 90 sec
Continuous Footnote a) Footnote c)
Time with sensor voltage
out of range > 25 sec
Stream 2 HO2S:
Inferred sensor temp > 204 deg C
(> 400 deg F)
HO2S heater OK
(P0141, P0054-bank1)
(P0161, P0060-bank2)
P0138
(Bank 1)
P0158
(Bank 2) Monitor normal signal voltage
envelope; forced A/F
excursion if required for green
catalyst
(Rationality check)
8
Aston Martin V12 Family
2009 MY V12 Family EOBDincl. V12 Vantage
Aston Martin/Ford Confidential
Component/ System Fault Code Monitor Strategy
Description Malfunction Criteria Threshold Parameter Secondary Parameters Entry Parameters Time Required DTC
StorageMIL Illumin-
ationHO2S Heater Circuit
Malfunction 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 19 - 649 deg C
(67 - 1200 deg F)Continuous
Footnote c)
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 Footnote c)
P0059
(HO2S21) Stream 1 HO2S heater on
time> 30 sec
Stream 1 sensor(s) tested
(P0133/P0153 tests
completed)
Stream 2 sensor(s) tested
(P2270, P2271, 2272, and
P2273 tests completed)
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
Footnote c)
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 temp121 - 732 deg C
(250 - 1350 deg F)Once per driving
cycle Footnote c)
P0060
(HO2S22) > 3.0 amps
Stream 2 HO2S heater on
time > 30 sec
Stream 1 sensor(s) tested
(P0133/P0153 tests
completed)
Stream 2 sensor(s) tested
(P2270, P2271, 2272, and
P2273 tests completed)
Stream 3 sensor(s) tested
(P2274, P2275, 2276, and
P2277 tests completed) Footnote a)
Footnote a)
9
