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>> Download TF documenatation <<Text preview - extract from the documentD DRIVELINE/AXLE
A
B
SECTION
TRANSFER C
TF
E
CONTENTS
PRECAUTIONS ......................................................... 4. 4WD WARNING LAMP ...................................... 19 . F
Precautions for Supplemental Restraint System ATP WARNING LAMP ........................................ 19 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- System Diagram .................................................... 19
.
SIONER" ................................................................. 4
. COMPONENTS FUNCTION .............................. 20 . G
Precautions for Transfer Assembly and Transfer CAN Communication ............................................. 20 .
Control Unit Replacement ....................................... 4 . SYSTEM DESCRIPTION ................................... 20 .
METHOD FOR POSITION ADJUSTMENT .......... 4 . TROUBLE DIAGNOSIS ........................................... 21 .
H
Precautions ............................................................. 4
. How to Perform Trouble Diagnosis ........................ 21 .
Service Notice ......................................................... 5
. BASIC CONCEPT .............................................. 21 .
PREPARATION .......................................................... 6
. Location of Electrical Parts .................................... 22 .
Special Service Tools .............................................. 6. Schematic .............................................................. 23
. I
Commercial Service Tools ....................................... 9 . Wiring Diagram -- T/F -- ...................................... 24 .
NOISE, VIBRATION AND HARSHNESS (NVH) Inspections Before Trouble Diagnosis ................... 32 .
TROUBLESHOOTING ............................................. 10 . TRANSFER FLUID CHECK ............................... 32 . J
NVH Troubleshooting Chart .................................. 10 . PREPARATION FOR ROAD TEST .................... 32 .
TRANSFER FLUID ...................................................11 . CHECK BEFORE ENGINE IS STARTED .......... 32 .
Replacement ..........................................................11
. CHECK AT IDLE ................................................. 32 .
K
DRAINING ...........................................................11
. CRUISE TEST .................................................... 33.
FILLING ...............................................................11
. Trouble Diagnosis Chart for Symptoms ................. 34 .
Inspection ...............................................................11
. Transfer Control Unit Input/Output Signal Refer-
FLUID LEAKAGE AND FLUID LEVEL ................11 . ence Values ........................................................... 35
. L
ALL-MODE 4WD SYSTEM ..................................... 12 . TRANSFER CONTROL UNIT INSPECTION
Cross-section View ............................................... 12 . TABLE ................................................................ 35
.
Power Transfer ...................................................... 13
. CONSULT-II Function (ALL MODE AWD/4WD) .... 44 . M
POWER TRANSFER DIAGRAM ....................... 13 . FUNCTION ......................................................... 44
.
POWER TRANSFER FLOW .............................. 14 . CONSULT-II START PROCEDURE ................... 44 .
System Description ............................................... 15 . SELF-DIAG RESULT MODE .............................. 45 .
CONTROL SYSTEM .......................................... 15 . DATA MONITOR MODE ..................................... 47 .
TRANSFER MOTOR ......................................... 16 . WORK SUPPORT .............................................. 49 .
WAIT DETECTION SWITCH ............................. 17 . Self-diagnostic Procedure ..................................... 50 .
NEUTRAL-4LO SWITCH ................................... 17 . SELF-DIAGNOSTIC PROCEDURE (WITH
ATP SWITCH ..................................................... 17 . CONSULT-II) ...................................................... 50
.
2-4WD SHIFT SOLENOID VALVE ..................... 17 . SELF-DIAGNOSTIC PROCEDURE (WITHOUT
CLUTCH PRESSURE SOLENOID VALVE ........ 18 . CONSULT-II) ...................................................... 50
.
LINE PRESSURE SWITCH ............................... 18 . ERASE SELF-DIAGNOSIS ................................ 53 .
CLUTCH PRESSURE SWITCH ......................... 18 . TROUBLE DIAGNOSIS FOR SYSTEM ................... 54 .
TRANSFER FLUID TEMPERATURE SENSOR 18 ... Power Supply Circuit For Transfer Control Unit ..... 54 .
TRANSFER CONTROL UNIT ............................ 18 . CONSULT-II REFERENCE VALUE IN DATA
TRANSFER CONTROL DEVICE ....................... 18 . MONITOR MODE ............................................... 54 .
4WD SHIFT SWITCH AND INDICATOR LAMP 18 ... TRANSFER CONTROL UNIT TERMINALS AND
Revision: August 2006 TF-1 2007 Armada
REFERENCE VALUE ......................................... 54 . DIAGNOSTIC PROCEDURE ..............................86 .
DIAGNOSTIC PROCEDURE ............................. 55 . COMPONENT INSPECTION ..............................89 .
COMPONENT INSPECTION ............................. 57 . 2-4WD Solenoid .....................................................90
.
Transfer Control Unit ............................................. 57
. CONSULT-II REFERENCE VALUE IN DATA
DIAGNOSTIC PROCEDURE ............................. 57 . MONITOR MODE ...............................................90 .
Output Shaft Revolution Signal (TCM) .................. 58 . TRANSFER CONTROL UNIT TERMINALS AND
DIAGNOSTIC PROCEDURE ............................. 58 . REFERENCE VALUE .........................................90 .
Vehicle Speed Sensor (ABS) ................................. 58 . DIAGNOSTIC PROCEDURE ..............................90 .
DIAGNOSTIC PROCEDURE ............................. 58 . COMPONENT INSPECTION ..............................93 .
Neutral-4LO Switch ............................................... 59
. Transfer Motor ........................................................94
.
CONSULT-II REFERENCE VALUE IN DATA CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................... 59 . MONITOR MODE ...............................................94 .
TRANSFER CONTROL UNIT TERMINALS AND TRANSFER CONTROL UNIT TERMINALS AND
REFERENCE VALUE ......................................... 59 . REFERENCE VALUE .........................................95 .
DIAGNOSTIC PROCEDURE ............................. 60 . DIAGNOSTIC PROCEDURE ..............................96 .
COMPONENT INSPECTION ............................. 62 . COMPONENT INSPECTION ............................ 101 .
4WD Shift Switch ................................................... 62
. Transfer Fluid Temperature .................................. 101 .
CONSULT-II REFERENCE VALUE IN DATA CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................... 62 . MONITOR MODE ............................................. 101 .
TRANSFER CONTROL UNIT TERMINALS AND TRANSFER CONTROL UNIT TERMINALS AND
REFERENCE VALUE ......................................... 62 . REFERENCE VALUE ....................................... 101 .
DIAGNOSTIC PROCEDURE ............................. 63 . DIAGNOSTIC PROCEDURE ............................ 102 .
COMPONENT INSPECTION ............................. 66 . COMPONENT INSPECTION ............................ 103 .
Wait Detection Switch ............................................ 66
. Clutch Pressure Switch ........................................ 104 .
CONSULT-II REFERENCE VALUE IN DATA CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................... 66 . MONITOR MODE ............................................. 104 .
TRANSFER CONTROL UNIT TERMINALS AND TRANSFER CONTROL UNIT TERMINALS AND
REFERENCE VALUE ......................................... 66 . REFERENCE VALUE ....................................... 104 .
DIAGNOSTIC PROCEDURE ............................. 67 . DIAGNOSTIC PROCEDURE ............................ 105 .
COMPONENT INSPECTION ............................. 69 . COMPONENT INSPECTION ............................ 106 .
PNP Switch Signal (TCM) ..................................... 69 . Line Pressure Switch ........................................... 107 .
DIAGNOSTIC PROCEDURE ............................. 69 . CONSULT-II REFERENCE VALUE IN DATA
Actuator Motor ....................................................... 70
. MONITOR MODE ............................................. 107 .
CONSULT-II REFERENCE VALUE IN DATA TRANSFER CONTROL UNIT TERMINALS AND
MONITOR MODE ............................................... 70 . REFERENCE VALUE ....................................... 107 .
TRANSFER CONTROL UNIT TERMINALS AND DIAGNOSTIC PROCEDURE ............................ 108 .
REFERENCE VALUE ......................................... 70 . COMPONENT INSPECTION ............................ 109 .
DIAGNOSTIC PROCEDURE ............................. 71 . Throttle Position Signal (ECM) ............................. 110 .
COMPONENT INSPECTION ............................. 76 . DIAGNOSTIC PROCEDURE ............................ 110 .
Actuator Position Switch ........................................ 77
. ABS Operation Signal (ABS) ............................... 110 .
CONSULT-II REFERENCE VALUE IN DATA DIAGNOSTIC PROCEDURE ............................ 110 .
MONITOR MODE ............................................... 77 . VDC Operation Signal (ABS) ............................... 111 .
TRANSFER CONTROL UNIT TERMINALS AND DIAGNOSTIC PROCEDURE ............................ 111 .
REFERENCE VALUE ......................................... 77 . TCS Operation Signal (ABS) ............................... 111 .
DIAGNOSTIC PROCEDURE ............................. 78 . DIAGNOSTIC PROCEDURE ............................ 111 .
COMPONENT INSPECTION ............................. 80 . CAN Communication Line .................................... 112 .
Transfer Control Device ......................................... 81
. DIAGNOSTIC PROCEDURE ............................ 112 .
CONSULT-II REFERENCE VALUE IN DATA ATP Switch ........................................................... 112
.
MONITOR MODE ............................................... 81 . CONSULT-II REFERENCE VALUE IN DATA
TRANSFER CONTROL UNIT TERMINALS AND MONITOR MODE ............................................. 112 .
REFERENCE VALUE ......................................... 81 . TRANSFER CONTROL UNIT TERMINALS AND
DIAGNOSTIC PROCEDURE ............................. 82 . REFERENCE VALUE ....................................... 112 .
Engine Speed Signal (ECM) .................................. 85 . DIAGNOSTIC PROCEDURE ............................ 113 .
DIAGNOSTIC PROCEDURE ............................. 85 . COMPONENT INSPECTION ............................ 114 .
Clutch Pressure Solenoid ...................................... 85 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 116 .
CONSULT-II REFERENCE VALUE IN DATA 4WD Shift Indicator Lamp and 4LO Indicator Lamp
MONITOR MODE ............................................... 85 . Do Not Turn ON ................................................... 116
.
TRANSFER CONTROL UNIT TERMINALS AND SYMPTOM: ....................................................... 116
.
REFERENCE VALUE ......................................... 85 . DIAGNOSTIC PROCEDURE ............................ 116 .
Revision: August 2006 TF-2 2007 Armada
4WD Warning Lamp Does Not Turn ON ............. 120 . SIDE OIL SEAL ...................................................... 136
.
SYMPTOM: ...................................................... 120
. Removal and Installation ..................................... 136 . A
DIAGNOSTIC PROCEDURE ........................... 120 . REMOVAL ........................................................ 136
.
4WD Shift Indicator Lamp or 4LO Indicator Lamp INSTALLATION ................................................ 136.
Does Not Change ................................................ 122
. TRANSFER CONTROL DEVICE ........................... 137 . B
SYMPTOM: ...................................................... 122
. Removal and Installation ..................................... 137 .
DIAGNOSTIC PROCEDURE ........................... 123 . AIR BREATHER HOSE ......................................... 138 .
ATP Warning Lamp Turns ON ............................. 124 . Removal and Installation ..................................... 138 .
SYMPTOM: ...................................................... 124
. TRANSFER MOTOR .............................................. 141 . C
DIAGNOSTIC PROCEDURE ........................... 124 . Removal and Installation ..................................... 141 .
4LO Indicator Lamp Repeats Flashing ................ 126 . REMOVAL ........................................................ 141
.
SYMPTOM: ...................................................... 126
. INSTALLATION ................................................ 141. TF
DIAGNOSTIC PROCEDURE ........................... 126 . TRANSFER OIL FILTER ........................................ 142 .
4WD Warning Lamp Flashes Rapidly ................. 127 . Removal and Installation ..................................... 142 .
SYMPTOM: ...................................................... 127
. REMOVAL ........................................................ 142
. E
DIAGNOSTIC PROCEDURE ........................... 127 . INSTALLATION ................................................ 142.
4WD Warning Lamp Flashes Slowly ................... 128 . TRANSFER ASSEMBLY ....................................... 144 .
SYMPTOM: ...................................................... 128
. Removal and Installation ..................................... 144 .
DIAGNOSTIC PROCEDURE ........................... 128 . REMOVAL ........................................................ 144
. F
Heavy Tight-corner Braking Symptom Occurs .... 129 . INSTALLATION ................................................ 144.
SYMPTOM: ...................................................... 129
. Disassembly and Assembly ................................. 145 .
DIAGNOSTIC PROCEDURE ........................... 129 . COMPONENTS ................................................ 145 . G
4WD System Does Not Operate ......................... 130 . DISASSEMBLY ................................................ 147 .
SYMPTOM: ...................................................... 130
. INSPECTION AFTER DISASSEMBLY ............. 162 .
DIAGNOSTIC PROCEDURE ........................... 130 . ASSEMBLY ...................................................... 166
. H
TRANSFER CONTROL UNIT ................................ 131 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 182 .
Removal and Installation ..................................... 131
. General Specifications ......................................... 182
.
REMOVAL ........................................................ 131
. Inspection and Adjustment .................................. 182 .
I
INSTALLATION ................................................ 131
. CLEARANCE BETWEEN INNER GEAR AND
FRONT OIL SEAL ................................................. 132
. OUTER GEAR .................................................. 182.
Removal and Installation ..................................... 132
. CLUTCH ........................................................... 182
.
REMOVAL ........................................................ 132
. PINION GEAR END PLAY ............................... 182 . J
INSTALLATION ................................................ 133
. CLEARANCE BETWEEN SHIFT FORK AND
REAR OIL SEAL ................................................... 134
. SLEEVE ........................................................... 182
.
Removal and Installation ..................................... 134
. SELECTIVE PARTS ......................................... 182 . K
REMOVAL ........................................................ 134
.
INSTALLATION ................................................ 134
.
L
M
Revision: August 2006 TF-3 2007 Armada
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EDS003U3
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Transfer Assembly and Transfer Control Unit Replacement EDS003U4
When replacing transfer assembly or transfer control unit, check the 4WD shift indicator lamp as follows.
1. Turn ignition switch "ON".
2. Check 4WD shift indicator lamp is turned ON for approx. 1 second.
q If OK, the position between transfer assembly and transfer control unit is correct.
q If NG, the position is different between transfer assembly and transfer control unit.
Adjust the position between transfer assembly and transfer control unit. Refer to TF-4, "METHOD FOR
POSITION ADJUSTMENT" .
METHOD FOR POSITION ADJUSTMENT
1. Start engine. Run the engine for at least 10 seconds.
2. Stop vehicle and move A/T selector lever to "N" position with brake pedal depressed. Stay in "N" for at
least 2 seconds.
3. Turn 4WD shift switch to "2WD" position. Stay in "2WD" for at least 2 seconds.
4. Turn ignition switch "OFF".
5. Start engine.
6. Erase self-diagnosis. Refer to TF-47, "How to Erase Self-diagnostic Results" (with CONSULT-II) or TF-
53, "ERASE SELF-DIAGNOSIS" (without CONSULT-II).
7. Check 4WD shift indicator lamp. Refer to TF-32, "CHECK BEFORE ENGINE IS STARTED" .
If 4WD shift indicator lamp does not indicate "2WD", install new transfer control unit and retry the above
check.
Precautions EDS003U5
q Before connecting or disconnecting the transfer control
unit harness connector, turn ignition switch "OFF" and dis-
connect battery ground cable. Failure to do so may damage
the transfer control unit. Battery voltage is applied to trans-
fer control unit even if ignition switch is turned "OFF".
SEF289H
Revision: August 2006 TF-4 2007 Armada
PRECAUTIONS
q When connecting or disconnecting pin connectors into or
from transfer control unit, take care not to damage pin ter- A
minals (bend or break).
When connecting pin connectors make sure that there are
not any bends or breaks on transfer control unit pin termi-
B
nals.
C
SEF291H
TF
q Before replacing transfer control unit, perform transfer con-
trol unit input/output signal inspection and make sure
whether transfer control unit functions properly or not.
E
Refer to TF-35, "Transfer Control Unit Input/Output Signal
Reference Values"
F
G
MEF040DB
Service Notice EDS003U6
H
q After overhaul refill the transfer with new transfer fluid.
q Check the fluid level or replace the fluid only with the vehicle parked on level ground.
q During removal or installation, keep inside of transfer clear of dust or dirt. I
q Disassembly should be done in a clean work area.
q Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign matter. J
q Check for the correct installation status prior to removal or disassembly. If matchmarks are required, be
certain they do not interfere with the function of the parts when applied.
q All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or K
reassembly.
q Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with new ones if necessary. L
q Gaskets, seals and O-rings should replaced any time the transfer is disassembled.
q In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, use it. M
q Observe the specified torque when assembling.
q Clean and flush the parts sufficiently and blow-dry them.
q Be careful not to damage sliding surfaces and mating surfaces.
q Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transfer.
Revision: August 2006 TF-5 2007 Armada
PREPARATION
PREPARATION PFP:00002
Special Service Tools EDS003U7
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
KV40104000 q Removing self-lock nut
( -- ) q Installing self-lock nut
Flange wrench
a: 85 mm (3.35 in)
b: 65 mm (2.56 in)
NT659
KV381054S0 q Removing front oil seal
(J-34286) q Removing rear oil seal
Puller
q Removing metal bushing
ZZA0601D
KV38100500 q Installing front oil seal
( -- ) a: 80 mm (3.15 in) dia.
Drift b: 60 mm (2.36 in) dia.
ZZA0811D
ST30720000 q Installing rear oil seal
(J-25405) q Installing mainshaft front bearing and oil
Drift seal
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ZZA0811D
KV40105310 q Installing dust cover
( -- ) a: 89 mm (3.50 in) dia.
Drift b: 80.7 mm (3.17 in) dia.
ZZA1003D
ST22360002 q Installing side oil seal
(J-25679-01) a: 23 mm (0.91 in) dia.
Drift b: 32 mm (1.26 in) dia.
ZZA1091D
ST35300000 q Removing sun gear assembly and planetary
( -- ) carrier assembly
Drift q Removing carrier bearing
q Installing metal bushing
a: 59 mm (2.32 in) dia.
b: 45 mm (1.77 in) dia.
NT073
Revision: August 2006 TF-6 2007 Armada
PREPARATION
Tool number Description
(Kent-Moore No.) A
Tool name
ST33200000 q Removing mainshaft front bearing
(J-26082) q Installing sun gear assembly and planetary B
Drift carrier assembly
q Installing mainshaft front bearing and oil
seal
C
a: 74.5 mm (2.933 in) dia.
NT661 b: 62.5 mm (2.461 in) dia.
ST30031000 q Removing carrier bearing TF
( -- ) q Removing front drive shaft front bearing
Puller
q Removing front drive shaft rear bearing
a: 90 mm (3.54 in) dia. E
b: 50 mm (1.97 in) dia.
NT411
ST33710000 q Removing needle bearing
F
( -- ) q Removing metal bushing
Drift
a: 24 mm (0.94 in) dia.
b: 89 mm (3.5 in) G
c: 30 mm (1.18 in) dia.
ZZA1057D H
ST35325000 q Removing metal bushing
( -- ) a: 215 mm (8.46 in)
Drift bar b: 25 mm (0.98 in) dia. I
c: M12
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