2009 INFINITI QX56 roof

DLK-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION DLK
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CONTENTS
DOOR & LOCK
WITH INTELLIGENT KEY SYSTEM
BASIC INSPECTION ....... .............................
6
DIAGNOSIS AND REPAIR WORKFLOW ..... .....6
Work Flow ........................................................... ......6
INSPECTION AND ADJUSTMENT .....................9
ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL ............................... ......
9
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Description ......
9
ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement ................................................. ......
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT .................................................... ......
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ..................................
9
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .......
9
FUNCTION DIAGNOSIS ..............................10
AUTOMATIC DOOR LOCKS ......................... ....10
System Diagram .................................................. ....10
System Description .................................................10
Component Parts Location ....................................12
Component Description ..........................................12
DOOR LOCK FUNCTION ..................................14
DOOR LOCK AND UNLOCK SWITCH ................. ....14
DOOR LOCK AND UNLOCK SWITCH : System
Diagram ...................................................................
14
DOOR LOCK AND UNLOCK SWITCH : System
Description ..............................................................
14
DOOR LOCK AND UNLOCK SWITCH :
Component Parts Location ....................................
15
DOOR LOCK AND UNLOCK SWITCH :
Component Description ..........................................
15
DOOR REQUEST SWITCH ................................... ....16
DOOR REQUEST SWITCH : System Diagram .......16
DOOR REQUEST SWITCH : System Description ....16
DOOR REQUEST SWITCH :
Component Parts Location ....................................
19
DOOR REQUEST SWITCH :
Component Description ..........................................
21
INTELLIGENT KEY ................................................ ....21
INTELLIGENT KEY : System Diagram ....................21
INTELLIGENT KEY : System Description ...............21
INTELLIGENT KEY : Component Parts Location ....24
INTELLIGENT KEY : Component Description ........25
BACK DOOR OPENER FUNCTION .................27
BACK DOOR OPENER SWITCH .......................... ....27
BACK DOOR OPENER SWITCH : System Dia-
gram ........................................................................
27
BACK DOOR OPENER SWITCH : System De-
scription ...................................................................
27
BACK DOOR OPENER SWITCH :
Component Parts Location ....................................
32
BACK DOOR OPENER SWITCH :
Component Description ..........................................
32
INTELLIGENT KEY ................................................ ....33
INTELLIGENT KEY : System Diagram ....................33
INTELLIGENT KEY : System Description ...............33
INTELLIGENT KEY : Component Parts Location ....35
INTELLIGENT KEY : Component Description ........36
WARNING FUNCTION ......................................38
System Description ..................................................38
Component Parts Location ....................................42
KEY REMINDER FUNCTION ............................44
System Description ..................................................44
Component Parts Location ....................................45
HAZARD AND BUZZER REMINDER FUNC-
TION ..................................................................
47
Revision: December 20092009 QX56

DIAGNOSIS SYSTEM (INTELLIGENT KEY UNIT)DLK-57
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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ACTIVE TEST
TRUNK SW This item is shown but not monitored.
VEHICLE SPEED Displays the vehicle speed signal received from combination meter by numerical value
[km/h].
Monitor Item
Condition
Test itemDescription
DOOR LOCK/UNLOCK This test is able to check door lock/unlock operation.
• ALL UNLK: All door lock actuators are unlocked.
• DR UNLK: Door lock actuator
(driver side) is unlocked.
• AS UNLK: Door lock actuator (passenger side) is unlocked.
• BK UNLK: This item is indicated, but inactive.
• LOCK: All door lock actuator is locked.
ANTENNA This test is able to check Intelligent Key antenna operation.
When the following condition are met, hazard warning lamps flash.
• ROOM ANT1: Inside key antenna (front of center console) detects Intelligent Key,
when “ROOM ANT1” is selected.
• ROOM ANT2: Inside key antenna (rear luggage area) detects Intelligent Key, when “ROOM ANT2”is selected.
• ROOM ANT3: Inside key antenna (rear of center console) detects Intelligent Key,
when “ROOM ANT3” is selected.
• ROOM ANT4: Inside key antenna (roof console) detects Intelligent Key, when “ROOM ANT4”is selected.
• DRIVER ANT: Outside key antenna (driver side) detects Intelligent Key, when “DRIV- ER ANT” is selected.
• ASSIST ANT: Outside key antenna (passenger side) detects Intelligent Key, when
“ASSIST ANT” is selected.
• BK DOOR ANT: Outside key antenna (rear bumper) detects Intelligent Key, when “BK DOOR ANT” is selected.
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation.
•ON
•OFF
INSIDE BUZZER This test is able to check warning chime in combination meter operation.
• TAKE OUT: Take away
warning chime sounds.
• KNOB: Ignition knob switch warning chime sounds.
• KEY: Key warning chime sounds.
•OFF
Revision: December 20092009 QX56

DLK-222
< SYMPTOM DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Most of these incidents can be repaired by adjusting, se
curing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area c an often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the pos ition the seat is in and the load placed on the seat when
the noise is present. These conditions should be duplicated when verifying and isolating the cause of the
noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of thes e incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the \
vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: December 20092009 QX56

DLN-204
< PRECAUTION >[FRONT FINAL DRIVE: M205]
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Servicing Front Final DriveINFOID:0000000004193536
 Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
 Check for the correct installation status prior to re moval or disassembly. When matching marks are required,
be certain they do not interfere with the f unction of the parts they are applied to.
 Overhaul should be done in a clean work area, a dust proof area is recommended.
 Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
 Always use shop paper for cleaning the inside of components.
 Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
 Check appearance of the disassembled parts for dam age, deformation, and abnormal wear. Replace them
with new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
 Clean and flush the parts sufficiently and blow them dry.
 Be careful not to damage sliding surfaces and mating surfaces.
 When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
 In principle, tighten nuts or bolts gradually in severa l steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
 During assembly, observe the specified tightening torque.
 Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
Revision: December 20092009 QX56

PRECAUTIONSDLN-237
< PRECAUTION > [REAR FINAL DRIVE: R230]
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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Servicing Rear Final DriveINFOID:0000000004193549
 Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
 Check for the correct installation status prior to removal or disassembly. When matching marks are required,
be certain they do not interfere with the function of the parts they are applied to.
 Overhaul should be done in a clean work area, a dust proof area is recommended.
 Before disassembly, completely remove sand and mud fr om the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
 Always use shop paper for cleaning the inside of components.
 Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
 Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them with new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
 Clean and flush the parts sufficiently and blow them dry.
 Be careful not to damage sliding surfaces and mating surfaces.
 When applying sealant, remove the old sealant from t he mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
 In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a tightening sequence is specified, observe it.
 During assembly, observe the specified tightening torque.
 Add new differential gear oil, petroleum jell y, or multi-purpose grease, as specified.
Revision: December 20092009 QX56

ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-409
< COMPONENT DIAGNOSIS > [VK56DE]
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ON BOARD REFUELING VAPOR RECOVERY (ORVR)
System DescriptionINFOID:0000000003771724
From the beginning of refueling, the air and vapor insi
de the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The v apor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspectio ns below, be sure to observe the following:
 Put a “CAUTION: FLAMMABLE” sign in workshop.
 Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.
 Be sure to furnish the workshop with a CO
2 fire extinguisher.
CAUTION:
 Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-proof containe r and put lid on securely.
- Release fuel pressure from fuel line. Refer to EC-487, "Fuel Pressure Check"
.
- Disconnect battery ground cable.
 Always replace O-ring when the fu el gauge retainer is removed.
 Do not kink or twist hose and tube when they are installed.
 Do not tighten hose and clamps excessively to avoid damaging hoses.
 After installation, run engine a nd check for fuel leaks at connection.
 Do not attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, r esulting in fuel spray and possibly a fire.
Diagnosis ProcedureINFOID:0000000003771725
SYMPTOM: FUEL ODOR FROM EVAP CANISTER IS STRONG.
1.CHECK EVAP CANISTER
1. Remove EVAP canister with EVAP canister vent c ontrol valve and EVAP control system pressure sensor
attached.
2. Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be l ess than 2.5 kg (5.5 lb).
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK IF EVAP CANISTER SATURATED WITH WATER
PBIB1068E
Revision: December 20092009 QX56

TIMING CHAINEM-47
< ON-VEHICLE REPAIR >
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11. Remove the oil pump drive spacer.
• Hold and remove the flat space of the oil pump drive spacer bypulling it forward.
12. Remove the oil pump. Refer to LU-14, "
Removal and Installation".
13. Remove the chain tensioner on the LH bank using the following steps. NOTE:
To remove the timing chain and associated parts, start with those on the LH bank. The procedure for
removing parts on the RH bank is omitted because it is the same as that for the LH bank.
a. Squeeze the return-proof clip ends using suitable tool and push the plunger into the tensioner body.
b. Secure the plunger using stopper pin. • Stopper pin is made from hard wire approximately 1 mm (0.04in) in diameter.
c. Remove the bolts and chain tensioner.
WARNING:
Plunger, spring, an d spring seat pop out when (squeezing)
return-proof clip without holding plunger head. It may
cause serious injuries. Always hold plunger head when
removing.
NOTE:
• Stop the plunger in the fully extended position by using the
return-proof clip (1) if the stopper pin is removed.
• Push the plunger (2) into the tensioner body while squeezing
the return-proof clip (1). Secure it using stopper pin (3).
14. Remove the timing chain tension guide and timing chain slack guide.
15. Remove the timing chain and crankshaft sprocket.
16. Loosen the camshaft sprocket bolts as shown and remove the camshaft sprocket.
CAUTION:
To avoid interference between valves and pistons, do not
turn crankshaft or camshaft wh en timing chain is discon-
nected.
17. Repeat the same procedure to remove the RH timing chain and associated parts.
INSPECTION AFTER REMOVAL
KBIA2512E
KBIA2479E
KBIA2483E
WBIA0799E
Revision: December 20092009 QX56

EM-54
< ON-VEHICLE REPAIR >
CAMSHAFT
5. Obtain compression TDC of No. 1 cylinder as follows:
a. Turn the crankshaft pulley clockwise to align the TDC identifica-tion notch (without paint mark) with the timing indicator on the
front cover.
b. At this time, make sure both intake and exhaust cam lobes of No. 1 cylinder (top front on LH bank) point outside.
• If they do not point outside, turn crankshaft pulley once more.
6. Disconnect and remove the camshaft position sensor. Refer to EM-44, "
Exploded View".
7. Disconnect and remove the intake valve timing c ontrol position sensor (RH and LH). Refer to EM-44,
"Exploded View".
8. Disconnect and remove the intake valve timing control solenoid valve (RH and LH). Refer to EM-44,
"Exploded View".
9. Remove the intake valve timing control solenoid cover RH bank (A) and intake valve timing control solenoid cover LH bank (B)
as follows:
a. Loosen and remove the bolts in reverse order as shown.
b. Cut the liquid gasket and remove the covers using Tool.
CAUTION:
Do not damage mating surfaces.
10. Paint alignment marks on the RH bank (A) timing chain links (C) and LH bank (B) timing chain links (D) and align with the cam-
shaft sprocket alignment marks (E) and (F).
11. Remove the chain tensioner (LH) using the following steps. WARNING:
Plunger, spring, and spring seat pop out when squeezing return-proof clip without holding
plunger head. It may cause serious injuries. Always hold plunger head when removing.
KBIA2476E
KBIA0400J
Tool number : KV10111100 (J-37228)
AWBIA0815ZZ
AWBIA0154ZZ
Revision: December 20092009 QX56