width ASTON MARTIN V8 VANTAGE 2010 Workshop Manual

AML EOBD System Operation Summary

Rory O’Curry Aston Martin Lagonda CONFIDENTIAL 1 May 2009
[email protected] AML EOBD Monitors 07 ROC.doc Page 28 of 43
Ignition Diagnostic Monitor (IDM), a signal which indicates that the primary side of the coil has
fired. This signal is received as a digital pulsewidth signal from the EDIS system which process
the high voltage flyback signal from the primary side coil.

The relationship between successive PIP events is ev aluated to determine whether the PIP signal is
rational. Too large a change in 3 successive PIP indicates a missing or noisy PIP signal (P0320 or P0321).
Then the CMP edge count is compared to the PIP e dge count. If the proper ratio of CMP events to PIP
events is not being maintained (for example, 1 CMP e dge for every 8 PIP edges for an 8-cylinder engine),
it indicates a missing or noisy CMP signal (P0340). Finally, the relationship between IDM edges and PIP
edges is evaluated. If there is not an IDM edge (co il firing) for every PIP edge (commanded spark event),
the PCM will look for a pattern of failed IDM events to determine which ignition coil has failed circuit
continuity (P0351-56).

Ignition System Check Operation:
DTCs P0320 / P0321 (CKP), P0340 (CMP), P0351 - P0358 (Coil Primary)
Monitor execution continuous
Monitor Sequence none
Monitoring Duration < 5 seconds

Typical ignition check entry conditions : Minimum Maximum
Engine RPM for CKP, CMP 200 rpm
Engine RPM for coil primary 200 rpm

Typical ignition check malfunction thresholds:
For PIP : Time between PIP edges : > 350 milliseconds
Ratio of current PIP period to last two periods : < 0.75 > 1.75
For CMP : Ratio of PIP events to CMP events: 4:1, 6:1, 8:1 or 10:1 based on engine cyl.
For coils : Ratio of PIP events to IDM events: 1:1


General Outputs

The Fuel Injectors are checked electrically for open and short circuit (P0201 to P0208).

The Idle Air Control (IAC) solenoid is checked electrically for open and shorts (P1504).

The Purge Solenoid or Vapour Management Valve output circuit is checked for opens and shorts (P0443).

Purge Solenoid / VMV Check Operation:
DTCsP0443
Monitor execution continuous (5 seconds to identify malfunction/obtain smart driver status)
Monitor Sequencenone
Monitoring Duration 5 seconds for electrical malfunctions

Typical Purge Solenoid / VMV component malfunction thresholds:
P0443 open / shorted at 0 and 100% duty cycle

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
Ratio of PIP events to
spark events seen 1 to 1 (To pass test) Increment fault counter by
20 on each event. Set
code when counter
exceeds 200 N/A
PCM able to determine
coil Yes
Above neutral torque axis See RPM/Load Table FNMISOK_97: Monitor
disabled when less than
0.5
Difference between actual
and desired rpm > -200 rpm
Engine coolant temp -40 deg C
(> -40 deg F)
Time with solenoid at limit > 5 sec Time since engine start > 60 sec
Fuel control Closed loop
Idle state At idle
Difference between actual
and desired rpm > 100 rpm
Engine coolant temp -40 deg C
(> -40 deg F)
Time with solenoid at limit > 5 sec Time since engine start > 60 sec
Fuel control Closed loop
Idle state At idle
Vehicle ID block not
programmed P1639 VID block not programmed
with tire/axle ratio Time with error present > 0 sec
NoneNoneContinuous Footnote a) Footnote c)
VID Block checksum P0602 VID block checksum test failedTime with error present > 0 sec
NoneNoneContinuous
KAM Failed / reset P0603 Keep Alive Memory check failed / memory was resetTime with error present > 0 sec
NoneNoneContinuous Footnote a) Footnote c)
RAM memory failed P0604 Random Access Memory test has failed.Time with error present > 0 sec
NoneNoneContinuous Footnote a) Footnote c)
ROM checksum test
failed P0605 Read Only Memory test failed Time with error present > 0 sec
NoneNoneContinuous Footnote a) Footnote c)
CPU Fault detected P0607 General fault with the CPU has been detectedTime with error present > 0 sec
NoneNoneContinuous
Keep Alive Memory
Power Input P1633 KAM power input voltage too
low/open circuit Time with error present > 20 sec
NoneNoneContinuous Footnote k) Footnote i)
Vehicle Speed
Sensor P0500 Invalid / missing data from
BCM BCM reports VSS failure
OR no data on CAN bus1
Time after start >2 secondsContinuous Footnote a) Footnote c)
Commanded duty cycle on
or full-off >=0.5 * 100 % or = 0%
Signal circuit voltage Refer to Appendix for threshold calculation
Time with circuit
malfunction > 5 sec
P0330 Bank1
Sensor1 Sensor range check
Engine speed>1000rpm
P0325 Bank1
Sensor2 Sensor range check
Engine coolant temp >55degC (131degF)
P130A Bank2
Sensor2 Sensor range check
P130B Bank2
Sensor2 Sensor range check
P0460 (Range
Check) Sensor range check
Sensor input <= 7 or >= 254 A/D
counts w/in a range of
256 A/D counts
P0462 (Low) Circuit Check Sensor input< 7 A/D counts
P0463 (High) Circuit Check Sensor input> 254 A/D counts
Time with sensor out of
range > 30 sec
Sensor rationality check
(Stuck sensor) Compare fuel mass
consumed versus
observed change in gauge
readings (Min. and max.
reading) Fuel consumed (Fuel
consumed and fuel gauge
reading range are both
stored in KAM and reset
after a refuelling event or
DTC storage)> 10 %
"Fuel consumed" is
continuously calculated based
on PCM fuel pulse width
summation as a percent of
fuel tank capacity Fuel consumed (%) -
Range of fuel gauge
readings (%)
> 0.125 * 100 %
threshold at fuel tank
fill from 15% to 85%
Fuel consumed (%) -
Range of fuel gauge
readings (%) > 0.054 + 0.125 * 100
% threshold if tank
overfilled (> 85%)
Fuel consumed (%) -
Range of fuel gauge
readings (%) > 0.175 + 0.125 * 100
% threshold if tank on
reserve (< 15%)
Change in fuel level > 0.1925*100% Fuel level on the data bus N/A
Number of intermittent
events > 5
I/M Readiness Number of driving cycles
to clear I/M readiness flag
at extreme ambient
conditions > 1 driving cycle(s) Footnote e)
Footnote a)
Footnote c)
Footnote a) Footnote j) Footnote e)
Fuel Level Input
Noisy Continuous Footnote a)
Continuous Footnote a)
P0461
(Rationality) Sensor rationality check
(Noisy sensor)
Fuel Level Input
Stuck
P0460
(Rationality) Continuous
N/A Continuous
Calculated sensor noise
(peak to peak variation)
>0.25
KNKS Sensor
Fuel Level Input Out
Of Range NoneFootnote a) Footnote e)
Vapor Management
Valve Circuit
Malfunction P0443 Circuit continuity test, open or
shorted None
N/A Continuous
11.5< Voltage
Ignition System-
Ignition Coil Primary
Circuit Malfunction
IAC Solenoid
Underspeed Error P0507
P0506
Functional check -
overspeed error
Functional check -
underspeed error
IAC Solenoid
Overspeed Error
Footnote a) Footnote c)
Continuous
P0351
P0352
P0353
P0354
P0355
P0356
P0357
P0358
Rationality check
Continuous Footnote a) Footnote c)
Battery Voltage
12

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-
ation
Sensor rationality check
(Stuck sensor) Compare fuel mass
consumed versus
observed change in gaug
e
readings (Min. and max.
reading) Fuel consumed (Fuel
consumed and fuel gauge
reading range are both
stored in KAM and reset
after a refueling event or
DTC storage)> 10 %
"Fuel consumed" is
continuously calculated based
on PCM fuel pulsewidth
summation as a percent of
fuel tank capacity Fuel consumed (%) -
Range of fuel gauge
readings (%)
> 0.05 * 100 %
threshold at fuel tank
fill from 15% to 85%
Fuel consumed (%) -
Range of fuel gauge
readings (%) > 0.05 + 0.05 * 100 %
threshold if tank
overfilled (> 85%)
Fuel consumed (%) -
Range of fuel gauge
readings (%) > 0.05 + 0.2 * 100 %
threshold if tank on
reserve (< 15%)
Change in fuel level > 0.3 Fuel level on the data bus
Number of intermittent
events > 100
Number of driving cycles
to clear I/M readiness flag
at extreme ambient
conditions > 1 driving cycle(s) Monitors which must
complete prior to clearing
I/M readiness bit for Evap
Monitor Catalyst, Misfire,
Secondary Air, HO2S,
Fuel System, CCM, EGR
Time within Evap Monitor
entry condition except IAT
and BARO > 180 sec N/A
I/M Readiness N/AFootnote e)
Fuel Level Input
Noisy P0461
(Rationality)Sensor rationality check
(Noisy sensor) N/A
Continuous Footnote a) Footnote e)
Continuous Footnote a)
Fuel Level Input
Stuck P0460
(Rationality)
14