2011 INFINITI QX56 Factory Service Manual

trunk release service schedule hood release lane assist steering wheel adjustment bolt pattern

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INFINITI QX56 2011 Factory Service Manual
FUEL PRESSUREEC-153
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FUEL PRESSURE
Work ProcedureINFOID:0000000006217756
FUEL PRESSURE RELEASE
WITH CONSULT-III
1. Turn ignition switch O

FUEL PRESSUREEC-153
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FUEL PRESSURE
Work ProcedureINFOID:0000000006217756
FUEL PRESSURE RELEASE
WITH CONSULT-III
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in
“WORK SUPPORT” mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
WITHOUT CONSULT-III
1. Remove fuel pump fuse in IPDM E/R. NOTE:
For the fuse number, refer to EC-114, "
Wiring Diagram".
For the fuse arrangement, refer to PG-143, "
Fuse, Connector and Terminal Arrangement".
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
LOW FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
The fuel hose connection method used when taking fuel pressure check must not be used for other
purposes.
Do not perform fuel pressure check with electrical syst ems operating (i.e. lights, rear defogger, A/C,
etc.) Fuel pressure gauge may indicate false readin gs due to varying engine load and changes in
manifold vacuum.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out.
1. Release fuel pressure to zero.
2. Prepare fuel hose for fuel pressure check (B) and fuel tube adapter [SST (KV10118400)] (D), then connect fuel pressure
gauge (A).
CAUTION:
Use suitable fuel hose for fuel pressure check (genuine
NISSAN fuel hose without quick connector).
To avoid unnecessary force or tension to hose, use mod-
erately long fuel hose for fuel pressure check.
Do not use the fuel hose for checking fuel pressure with damage or cracks on it.
Use Pressure Gauge to check fuel pressure.
3. Disconnect fuel feed hose from fuel tube. Refer to EM-43, "
Exploded View".
CAUTION:
Do not twist or kink fuel hose because it is plastic hose.
To quick connector
To fuel tube (engine side)
C : Hose clamp
PBIB2982E
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
EC-154
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FUEL PRESSURE
4. Connect fuel hose for fuel pressure check (1) to fuel tube
(engine side) with clamp (2) as shown in the figure.
CAUTION:
Wipe off oil or dirt fr

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INFINITI QX56 2011 Factory Service Manual
FUEL PRESSUREEC-155
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OWITHOUT CONSULT-III
1. Start the engine.
2. Check fuel rail pressure sensor signal voltage.
Monitor Item Condition Val

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INFINITI QX56 2011 Factory Service Manual
EC-156
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HOW TO SET SRT CODE
HOW TO SET SRT CODE
DescriptionINFOID:0000000006265593
OUTLINE
In order to set all SRTs, the self-diagnoses as in
the “SRT ITEM” table mus

Page 2181 of 5598

INFINITI QX56 2011 Factory Service Manual
HOW TO SET SRT CODEEC-157
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SRT Set Driving PatternINFOID:0000000006265594
CAUTION:
JSBIA0399GB
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
EC-158
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HOW TO SET SRT CODE
Always drive the vehicle in safe ma
nner according to traffic conditions and obey all traffic laws.
The time required for each diagnosis vari

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INFINITI QX56 2011 Factory Service Manual
HOW TO SET SRT CODEEC-159
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Flat road
Ambient air temperature: 20 - 30
°C (68 - 86 °F)
Diagnosis is performed as quickly as possibl

HOW TO SET SRT CODEEC-159
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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.
Work ProcedureINFOID:0000000006265595
1.CHECK DTC
Check DTC.
Is any DTC detected?
YES >> Repair malfunction(s) and erase DTC. Refer to EC-98, "DTC Index".
NO >> GO TO 2.
2.CHECK SRT STATUS
WITH CONSULT-III
Select “SRT STATUS” in “DTC & SRT CONFIRMATION” mode with CONSULT-III.
WITHOUT CONSULT-III
Perform “SRT status” mode with EC-60, "
On Board Diagnosis Function".
WITH GST
Select Service $01 with GST.
Is SRT code(s) set?
YES >> END
NO-1 >> With CONSULT-III: GO TO 3.
NO-2 >> Without CONSULT-III: GO TO 4.
3.DTC CONFIRMATION PROCEDURE
1. Select “SRT WORK SUPPORT” in “DTC & SRT CONFIRMATION” mode with CONSULT-III.
2. For SRT(s) that is not set, perform the corre sponding “DTC CONFIRMATION PROCEDURE” according to
the “Performance Priority” in t he “SRT ITEM” table. Refer to EC-156, "
Description".
3. Check DTC.
Is any DTC detected?
YES >> Repair malfunction(s) and erase DTC. Refer to EC-98, "DTC Index".
NO >> GO TO 10.
4.PERFORM ROAD TEST
Check the “Performance Priority” in the “SRT ITEM” table. Refer to EC-156, "
Description".
Perform the most efficient SRT set drivi ng pattern to set the SRT properly. Refer to EC-157, "
SRT Set Driv-
ing Pattern".
In order to set all SRTs, the SRT set driving pattern must be performed at least once.
>> GO TO 5.
5.PATTERN 1
1. Check the vehicle condition;
- Engine coolant temperature is −10 to 35 °C (14 to 95 °F).
- Fuel tank temperature is more than 0 °C (32 °F).
2. Start the engine.
3. Keep engine idling until the engine coolant temperature is greater than 70 °C (158 °F)
NOTE:
ECM terminal voltage is follows;
Engine coolant temperature
- −10 to 35 °C (14 to 95 °F): 3.0 - 4.3 V
-70 °(158 °F): Less than 1.4 V
Fuel tank temperature: Less than 4.1 V
Refer to EC-72, "
Reference Value".
>> GO TO 6.
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
EC-160
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HOW TO SET SRT CODE
6.PATTERN 2
1. Drive the vehicle. And depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH), then
release the accelerator peda

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