2010 INFINITI QX56 light

DLN-190
< SERVICE DATA AND SPECIFICATIONS (SDS) [PROPELLER SHAFT: 2F1310]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000005148903
Unit: mm (in)
Propeller Shaft Runout
Unit: mm (in)
Propeller Shaft Joint Flex Effort
Unit: N·m (kg-m, in-lb)
Journal Axial Play
Unit: mm (in)
Snap RingINFOID:0000000005148904
Model 2F1310 (4WD)
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.Applied model
4WD
VK56DE A/T
Propeller shaft model 2F1310
Number of joints 2
Coupling method with front final drive Flange type
Coupling method with transfer Flange type
Shaft length (Spider to spider) 696 (27.40)
Shaft outer diameter 63.5 (2.5)
ItemLimit
Propeller shaft runout 0.6 (0.024)
ItemLimit
Propeller shaft joint flex effort 1.96 (0.20, 17) or less
ItemLimit
Journal axial play 0.02 (0.0008)
ThicknessColorPart Number*
1.99 (0.0783) White37146-C9400
2.02 (0.0795) Yellow37147-C9400
2.05 (0.0807) Red37148-C9400
2.08 (0.0819) Green37149-C9400
2.11 (0.0831) Blue37150-C9400
2.14 (0.0843) Light brown 37151-C9400
2.17 (0.0854) Black37152-C9400
2.20 (0.0866) No paint37153-C9400
Revision: April 20092010 QX56

PROPELLER SHAFTDLN-199
< DISASSEMBLY AND ASSEMBLY > [PROPELLER SHAFT: 2S1410]
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DISASSEMBLY AND ASSEMBLY
PROPELLER SHAFT
Disassembly and AssemblyINFOID:0000000005148909
DISASSEMBLY
Journal
1. Put matching marks on the rear propeller shaft and flange yoke as shown.
CAUTION:
For matching marks use paint. Never damage the rear pro-
peller shaft or flange yoke.
2. Remove the snap rings.
3. Push out and remove the journal bearings by lightly tapping the flange yoke with a hammer, taking care not to damage the jour-
nal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
4. Push out and remove the remaining journal bearings at the opposite side by lightly tapping the flange yoke with a hammer,
taking care not to damage the journal or flange yoke hole.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
SPD128
APD011
SPD732
SPD131
Revision: April 20092010 QX56

DLN-202
< SERVICE DATA AND SPECIFICATIONS (SDS) [PROPELLER SHAFT: 2S1410]
SERVICE DATA AND SPECIFICATIONS (SDS)
*Always check with the Parts Department for the latest parts information.2.14 (0.0843)
Light brown 37151-C9400
2.17 (0.0854) Black37152-C9400
2.20 (0.0866) No paint37153-C9400
Thickness
ColorPart Number*
Revision: April 20092010 QX56

INSPECTION AND ADJUSTMENTEC-15
< BASIC INSPECTION > [VK56DE]
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1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
Refer to EC-17, "
Idle Speed and Ignition Timing Check" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
• Check camshaft position sensor (PHASE) and circuit. Refer to EC-205
.
• Check crankshaft position sensor (POS) and circuit. Refer to EC-201
.
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace. 2. GO TO 4.
9.CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM f unction. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of IVIS (NAT S) system and registration of all IVIS (NATS) ignition key IDs. Refer to
SEC-14, "
System Diagram".
>> GO TO 4.
10.CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to EC-17, "
Idle Speed and Ignition Timing Check" .
OK or NG
OK >> GO TO 19.
NG >> GO TO 11.
11 .PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-18, "
Accelerator Pedal Released Position Learning" .
>> GO TO 12.
12.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-18, "
Throttle Valve Closed Position Learning" .
>> GO TO 13.
13.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-18, "
Idle Air Volume Learning" .
Is Idle Air Volume Learning carried out successfully?
Ye s o r N o
Yes >> GO TO 14.
No >> 1. Follow the instruction of Idle Air Volume Learning. 650
± 50 rpm (in P or N position)
15 ± 5 ° BTDC (in P or N position)
BBIA0379E
Revision: April 20092010 QX56

EC-16
< BASIC INSPECTION >[VK56DE]
INSPECTION AND ADJUSTMENT
2. GO TO 4.
14.CHECK TARGET IDLE SPEED AGAIN
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with CONSULT-III.
Refer to EC-17, "
Idle Speed and Ignition Timing Check" .
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
Refer to EC-17, "
Idle Speed and Ignition Timing Check" .
OK or NG
OK >> GO TO 15.
NG >> GO TO 17.
15.CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light. Refer to EC-17, "
Idle Speed and Ignition Timing Check" .
OK or NG
OK >> GO TO 19.
NG >> GO TO 16.
16.CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-45, "
Removal and Installation".
OK or NG
OK >> GO TO 17.
NG >> 1. Repair the timing chain installation. 2. GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
• Check camshaft position sensor (PHASE) and circuit. Refer to EC-205
.
• Check crankshaft position sensor (POS) and circuit. Refer to EC-201
.
OK or NG
OK >> GO TO 18.
NG >> 1. Repair or replace. 2. GO TO 4.
18.CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but this is a rare case.)
2. Perform initialization of IVIS (NATS) system and regist ration of all IVIS (NATS) ignition key IDs. Refer to
SEC-14, "
System Diagram".
>> GO TO 4.
19.INSPECTION END 650
± 50 rpm (in P or N position)
650 ± 50 rpm (in P or N position)
15 ± 5 ° BTDC (in P or N position)
BBIA0379E
Revision: April 20092010 QX56

INSPECTION AND ADJUSTMENTEC-17
< BASIC INSPECTION > [VK56DE]
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Did you replace ECM, referring this Basic Inspection procedure?
Ye s o r N o
Ye s > > 1 . P e r f o r m
EC-17, "VIN Registration" .
2. INSPECTION END
No >> INSPECTION END
Idle Speed and Ignition Timing CheckINFOID:0000000005149056
IDLE SPEED
With CONSULT-III
Check idle speed in “DATA MONITOR” mode with CONSULT-III.
With GST
Check idle speed with GST.
IGNITION TIMING
1. Attach timing light to loop wire as shown.
2. Check ignition timing.
Procedure After Replacing ECMINFOID:0000000005149057
When replacing ECM, the following procedure must be performed.
1. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to SEC-14, "
System Diagram".
2. Perform EC-17, "
VIN Registration".
3. Perform EC-18, "
Accelerator Pedal Released Position Learning".
4. Perform EC-18, "
Throttle Valve Closed Position Learning".
5. Perform EC-18, "
Idle Air Volume Learning".
VIN RegistrationINFOID:0000000005149058
DESCRIPTION
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM may be required for Inspection & Maintenance (I/M).
OPERATION PROCEDURE
BBIA0377E
BBIA0379E
Revision: April 20092010 QX56

EC-18
< BASIC INSPECTION >[VK56DE]
INSPECTION AND ADJUSTMENT
With CONSULT-III
1. Check the VIN of the vehicle and note it. Refer to
GI-20, "Model Variation".
2. Turn ignition switch ON and engine stopped.
3. Select “VIN REGISTRATION ” in “WORK SUPPORT” mode.
4. Follow the instruction of CONSULT-III display.
Accelerator Pedal Released Position LearningINFOID:0000000005149059
DESCRIPTION
Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel-
erator pedal by monitoring the accelerator pedal positi on sensor output signal. It must be performed each time
harness connector of accelerator pedal pos ition sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
Throttle Valve Closed Position LearningINFOID:0000000005149060
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to l earn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal . It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF wait at least 10 seconds. Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume LearningINFOID:0000000005149061
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the follo wing conditions are missed for even a moment.
• Battery voltage: More than 12.9V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212° F)
• Select lever: P or N
• Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
start the headlamp will not be illuminated.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- With CONSULT-III: Drive vehicle until “ATF TEMP SE 1” in “DATA MONITOR” mode of “A/T” system indi- cates less than 0.9V.
- Without CONSULT-III: Drive vehicle for 10 minutes.
OPERATION PROCEDURE
Revision: April 20092010 QX56

AUTOMATIC SPEED CONTROL DEVICE (ASCD)EC-33
< FUNCTION DIAGNOSIS > [VK56DE]
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System DescriptionINFOID:0000000005149068
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set
vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric thro ttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE i ndicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE indicato r in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indicator in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed during cr uise control driving, increase the vehicle speed until
the switch is released or vehicle speed reac hes maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exis t, cruise operation will be canceled.
• CANCEL switch is pressed
• More than 2 switches at ASCD steer ing switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Selector lever is changed to N, P, R position
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• VDC system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
• Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE indicator may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE indicator will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
• Malfunction for some self-diagnoses regarding ASCD control: SET indicator will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
Sensor Input signal to ECM ECM functionActuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator
Stop lamp switch
Brake pedal operation
ASCD steering switch ASCD steering switch operation
Wheel sensor Vehicle speed*
TCM Gear position
Powertrain revolution*
Revision: April 20092010 QX56