INFINITI FX35 2008 Service Manual

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-61
< SERVICE INFORMATION > [VQ35DE]
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*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the pr
iority for
models with CONSULT-III.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. T he set timing is different between OK and NG results and
is shown in the table below.
OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective se lf-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG re sults in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”. → Case 3 above
The table above shows that the minimum number of cyc les for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-di agnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary for each self-di agnosis to be executed twice (Case 3) for the following
reasons:
 The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.
 The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
 When, during SRT driving pattern, 1st trip DTC (NG) is detected prior to “CMPLT” of SRT, the self-diagnosis
memory must be erased from ECM after repair.
 If the 1st trip DTC is erased, all the SRT will indicate “INCMP”. NOTE:
SRT can be set as “CMPLT” together with the DTC(s) . Therefore, DTC check must always be carried out
prior to the state emission inspection even though the SRT indicates “CMPLT”.
HO2S 2 Air fuel ratio (A/F) sensor 1 P0133, P0153
Heated oxygen sensor 2 P0137, P0157
Heated oxygen sensor 2 P0138, P0158
Heated oxygen sensor 2 P0139, P0159
SRT item
(CONSULT-III indica-
tion) Perfor-
mance Pri-
ority* Required self-diagnostic items to set the SRT to “CMPLT” Corresponding DTC No.
Self-diagnosis result Example
Diagnosis Ignition cycle
← ON → OFF ← ON → OFF ← ON → OFF ← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2) P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1) P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — — P0402 — — — —
P1402 NG — NG NG
(Consecutive NG)
(1st trip) DTC 1st trip DTC — 1st trip DTC DTC
(= MIL ON)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-62
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SRT Service Procedure
If a vehicle has failed the state emissions inspection
due to one or more SRT items indicating “INCMP”, review
the flowchart diagnostic sequence on the next page.
How to Display SRT Status
WITH CONSULT-III
Selecting “SRT STATUS” in “DTC & SR T CONFIRMATION” mode with CONSULT-III.
For items whose SRT codes are set, a “CMPLT” is displayed on the CONSULT-III screen; for items whose
SRT codes are not set, “INCMP” is displayed.
NOTE:
Though displayed on the CONSULT-III scr een, “HO2S HTR” is not SRT item.
WITH GST
Selecting Service $01 with GST (Generic Scan Tool)
NO TOOLS
A SRT code itself can not be displayed while only SRT status can be.
1. Turn ignition switch ON and wait 20 seconds.
2. SRT status is indicated as shown below.
*1 “How to Read DTC and 1st Trip DTC” *2 “How to Display SRT Status” *3 “How to Set SRT Code”
PBIB2320E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-63
< SERVICE INFORMATION > [VQ35DE]
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 When all SRT codes are set, MIL lights up continuously.
 When any SRT codes are not set, MIL will flash periodically for 10 seconds.
How to Set SRT Code
To set all SRT codes, self-diagnosis for the items indicated above must be performed one or more times. Each
diagnosis may require a long period of actual driving under various conditions.
WITH CONSULT-III
Perform corresponding DTC Confirmation Procedure one by one based on Performance Priority in the table
on “SRT Item”.
WITHOUT CONSULT-III
The most efficient driving pattern in which SRT codes can be properly set is explained on the next page. The
driving pattern should be performed one or more times to set all SRT codes.
PBIB2317E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-64
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Driving Pattern
 The time required for each diagnosis varies with road su
rface conditions, weather, altitude, individual driving
habits, etc.
Zone A refers to the range where the time, required fo r the diagnosis under normal conditions*, is the short-
est.
Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within
zone A.
*: Normal conditions refer to the following:
PBIB3622E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-65
< SERVICE INFORMATION > [VQ35DE]
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 Sea level
 Flat road
 Ambient air temperature: 20 - 30
°C (68 - 86 °F)
 Diagnosis is performed as quickly as possible under normal conditions. Under different conditions [For example: ambient air temperature other than 20 - 30 °C (68 - 86 °F)], diagno-
sis may also be performed.
Pattern 1:
 The engine is started at the engine coolant temperature of −10 to 35 °C (14 to 95 °F)
(where the voltage between the ECM terminal 73 and ground is 3.0 - 4.3V).
 The engine must be operated at idle speed until the engine coolant temperature is greater than 70 °C
(158 °F) (where the voltage between the ECM te rminal 73 and ground is lower than 1.4V).
 The engine is started at the fuel tank temperature of warmer than 0 °C (32 °F) (where the voltage
between the ECM terminal 107 and ground is less than 4.1V).
Pattern 2:
 When steady-state driving is performed again even afte r it is interrupted, each diagnosis can be conducted.
In this case, the time required for diagnosis may be extended.
Pattern 3:
 Operate vehicle following the driving pattern shown in the figure.
 replace the accelerator pedal during decelerating vehicle speed from 90km/h(56MPH) to 0km/h(0MPH).
Pattern 4:
 The accelerator pedal must be held very steady during steady- state driving.
 If the accelerator pedal is moved, the test must be conducted all over again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56
MPH), then release the accelerator pedal and keep it released for
more than 10 seconds. Depress the accelerator pedal until vehicle
speed is 90 km/h (56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
Suggested Transmi ssion Gear Position
Set the selector lever in the D position.
TEST VALUE AND TEST LIMIT
The following is the information specified in Service $06 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by On Board Monitor ID(OBDMID), Test ID (TID), Unit and
Scaling ID and can be displayed on the GST screen.
The items of the test value and test limit will be disp layed with GST screen which items are provided by the
ECM. (eg., if the bank 2 is not applied on this v ehicle, only the items of the bank 1 is displayed)
PBIB2244E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-66
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ItemOBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
HO2S 01H
Air fuel ratio
(A/F) sensor 1
(Bank 1) P0131 83H 0BH
Minimum sensor output voltage
for test cycle
P0131 84H 0BH Maximum sensor output voltage
for test cycle
P0130 85H 0BH Minimum sensor output voltage
for test cycle
P0130 86H 0BH Maximum sensor output voltage
for test cycle
P0133 87H 04H Response rate: Response ratio
(Lean to Rich)
P0133 88H 04H Response rate: Response ratio
(Rich to Lean)
P2A00 89H 84H The amount of shift in air fuel ratio
P2A00 8AH 84H The amount of shift in air fuel ratio
P0130 8BH 0BH Difference in sensor output volt-
age
P0133 8CH 83H Response gain at the limited fre-
quency
02H Heated oxygen sensor 2
(Bank 1) P0138 07H 0CH
Minimum sensor output voltage
for test cycle
P0137 08H 0CH Maximum sensor output voltage
for test cycle
P0138 80H 0CH Sensor output voltage
P0139 81H 0CH Difference in sensor output volt-
age
03H Heated oxygen sensor 3
(Bank 1) P0143 07H 0CH
Minimum sensor output voltage
for test cycle
P0144 08H 0CH Maximum sensor output voltage
for test cycle
P0146 80H 0CH Sensor output voltage
P0145 81H 0CH Difference in sensor output volt-
age
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-67
< SERVICE INFORMATION > [VQ35DE]
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HO2S 05H
Air fuel ratio (A/F) sensor 1
(Bank 2) P0151 83H 0BH
Minimum sensor output voltage
for test cycle
P0151 84H 0BH Maximum sensor output voltage
for test cycle
P0150 85H 0BH Minimum sensor output voltage
for test cycle
P0150 86H 0BH Maximum sensor output voltage
for test cycle
P0153 87H 04H Response rate: Response ratio
(Lean to Rich)
P0153 88H 04H Response rate: Response ratio
(Rich to Lean)
P2A03 89H 84H The amount of shift in air fuel ratio
P2A03 8AH 84H The amount of shift in air fuel ratio
P0150 8BH 0BH Difference in sensor output volt-
age
P0153 8CH 83H Response gain at the limited fre-
quency
06H Heated oxygen sensor 2
(Bank 2) P0158 07H 0CH
Minimum sensor output voltage
for test cycle
P0157 08H 0CH Maximum sensor output voltage
for test cycle
P0158 80H 0CH Sensor output voltage
P0159 81H 0CH Difference in sensor output volt-
age
07H Heated oxygen sensor 3
(Bank2) P0163 07H 0CH
Minimum sensor output voltage
for test cycle
P0164 08H 0CH Maximum sensor output voltage
for test cycle
P0166 80H 0CH Sensor output voltage
P0165 81H 0CH Difference in sensor output volt-
age
CATA-
LYST 21H
Three way catalyst function
(Bank1) P0420 80H 01H O2 storage index
P0420 82H 01H
Switching time lag engine exhaust
index value
P2423 83H 0CH Difference in 3rd O2 sensor out-
put voltage
P2423 84H 84H O2 storage index in HC trap cata-
lyst
22H Three way catalyst function
(Bank2) P0430 80H 01H O2 storage index
P0430 82H 01H
Switching time lag engine exhaust
index value
P2424 83H 0CH Difference in 3rd O2 sensor out-
put voltage
P2424 84H 84H O2 storage index in HC trap cata-
lyst
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-68
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EGR
SYSTEM31H EGR function P0400 80H 96H
Low Flow Faults: EGR temp
change rate (short term)
P0400 81H 96H Low Flow Faults: EGR temp
change rate (long term)
P0400 82H 96H Low Flow Faults: Difference be-
tween max EGR temp and EGR
temp under idling condition
P0400 83H 96H Low Flow Faults: Max EGR temp
P1402 84H 96H High Flow Faults: EGR temp in-
crease rate
EVAP
SYSTEM 39H
EVAP control
system leak
(Cap Off) P0455 80H 0CHDifference in pressure sensor out-
put voltage before and after pull
down
3BH EVAP control
system leak
(Small leak) P0442 80H 05H
Leak area index (for more than
0.04inch)
3CH EVAP control system
(Very small leak) P0456 80H 05H
Leak area index (for more than
0.02inch)
P0456 81H FDH Maximum internal pressure of
EVAP system during monitoring
3DH Purge flow system P0441 83H 0CH Difference in pressure sensor out-
put voltage before and after vent
control value close
O2 SEN-
SOR
HEATER 41H
A/F sensor 1 heater
(Bank 1) Low Input:P0031
High Input:P0032 81H 0BHConverted value of Heater electric
current to voltage
42H Heated oxygen sensor 2
(Bank 1) Low Input:P0037
High Input:P0038 80H 0CH
Converted value of Heater electric
current to voltage
43H Heated oxygen sensor 3
(Bank 1) P0043 80H 0CHConverted value of Heater electric
current to voltage
45H A/F sensor 1 heater
(Bank 2) Low Input:P0051
High Input:P0052 81H 0BHConverted value of Heater electric
current to voltage
46H Heated oxygen sensor 2
(Bank 2) Low Input:P0057
High Input:P0058 80H 0CHConverted value of Heater electric
current to voltage
47H Heated oxygen sensor 3
(Bank 2) P0063 80H 0CH
Converted value of Heater electric
current to voltage
SEC-
OND-
ARY AIR 71H Secondary Air system P0411 80H 01H
Secondary Air Injection System
Incorrect Flow Detected
Bank1: P0491
Bank2: P0492 81H 01HSecondary Air Injection System
Insufficient Flow
P2445 82H 01H Secondary Air Injection System
Pump Stuck Off
P2448 83H 01H Secondary Air Injection System
High Airflow
Bank1: P2440
Bank2: P2442 84H 01HSecondary Air Injection System
Switching Valve Stuck Open
P2440 85H 01H Secondary Air Injection System
Switching Valve Stuck Open
P2444 86H 01H Secondary Air Injection System
Pump Stuck On
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ON BOARD DIAGNOSTIC (OBD) SYSTEMEC-69
< SERVICE INFORMATION > [VQ35DE]
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FUEL
SYSTEM
81H
Fuel injection system function
(Bank 1) P0171 or P0172 80H 2FH Long term fuel trim
P0171 or P0172 81H 24H
The number of lambda control
clamped
82H Fuel injection system function
(Bank 2) P0174 or P0175 80H 2FH Long term fuel trim
P0174 or P0175 81H 24H
The number of lambda control
clamped
MISFIRE A1H Multiple Cylinder Misfire P0301 80H 24H
Misfiring counter at 1000rev of the
first cylinder
P0302 81H 24H Misfiring counter at 1000rev of the
second cylinder
P0303 82H 24H Misfiring counter at 1000rev of the
third cylinder
P0304 83H 24H Misfiring counter at 1000rev of the
fourth cylinder
P0305 84H 24H Misfiring counter at 1000rev of the
fifth cylinder
P0306 85H 24H Misfiring counter at 1000rev of the
sixth cylinder
P0307 86H 24H Misfiring counter at 1000rev of the
seventh cylinder
P0308 87H 24H Misfiring counter at 1000rev of the
eighth cylinder
P0300 88H 24H Misfiring counter at 1000rev of the
multiple cylinders
P0301 89H 24H Misfiring counter at 200rev of the
first cylinder
P0302 8AH 24H Misfiring counter at 200rev of the
second cylinder
P0303 8BH 24H Misfiring counter at 200rev of the
third cylinder
P0304 8CH 24H Misfiring counter at 200rev of the
fourth cylinder
P0305 8DH 24H Misfiring counter at 200rev of the
fifth cylinder
P0306 8EH 24H Misfiring counter at 200rev of the
fifth cylinder
P0307 8FH 24H Misfiring counter at 200rev of the
fifth cylinder
P0308 90H 24H Misfiring counter at 200rev of the
fifth cylinder
P0300 91H 24H Misfiring counter at 1000rev of the
single cylinder
P0300 92H 24H Misfiring counter at 200rev of the
single cylinder
P0300 93H 24H Misfiring counter at 200rev of the
multiple cylinders
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EC-70
< SERVICE INFORMATION >[VQ35DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION
How to Erase DTC
With CONSULT-III
The emission related diagnostic information in the EC M can be erased by selecting “ALL Erace” in the
“Description” of “FINAL CHEK” mode with CONSULT-III.
With GST
The emission related diagnostic information in the EC M can be erased by selecting Service $04 with GST.
NOTE:
If the DTC is not for A/T related items (see EC-17
), skip step 2.
MISFIREA2H No.1 Cylinder Misfire
P0301 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0301 0CH 24H Misfire counts for last/current driv-
ing cycles
A3H No.2 Cylinder Misfire P0302 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0302 0CH 24H Misfire counts for last/current driv-
ing cycles
A4H No.3 Cylinder Misfire P0303 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0303 0CH 24H Misfire counts for last/current driv-
ing cycles
A5H No.4 Cylinder Misfire P0304 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0304 0CH 24H Misfire counts for last/current driv-
ing cycles
A6H No.5 Cylinder Misfire P0305 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0305 0CH 24H Misfire counts for last/current driv-
ing cycles
A7H No.6 Cylinder Misfire P0306 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0306 0CH 24H Misfire counts for last/current driv-
ing cycles
A8H No.7 Cylinder Misfire P0307 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0307 0CH 24H Misfire counts for last/current driv-
ing cycles
A9H No.8 Cylinder Misfire P0308 0BH 24H
EWMA (Exponential Weighted
Moving Average) misfire counts
for last 10 driving cycles
P0308 0CH 24H Misfire counts for last/current driv-
ing cycles
Item
OBD-
MID Self-diagnostic test item DTC Test value and Test
limit
(GST display) Description
TID Unit and
Scaling ID
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C