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TRANSFER

D DRIVELINE/AXLE

SECTION TF
TRANSFER
B

E
CONTENTS
PRECAUTIONS ......................................................... 3 . System Component ............................................... 30 . F
Precautions for Supplemental Restraint System System Description ................................................ 30 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- ELECTRIC CONTROLLED COUPLING ............ 30 .
SIONER" ................................................................. 3
. AWD CONTROL UNIT ....................................... 30 . G
Precautions ............................................................. 3
. AWD LOCK SWITCH ......................................... 30 .
Service Notice ......................................................... 4
. AWD WARNING LAMP ...................................... 31 .
Wiring Diagrams and Trouble Diagnosis ................. 4 . FAIL- SAFE FUNCTION ..................................... 31 .
H
PREPARATION .......................................................... 5. System Diagram .................................................... 32 .
Special Service Tools .............................................. 5. CAN Communication ............................................. 33 .
NOISE, VIBRATION AND HARSHNESS (NVH) SYSTEM DESCRIPTION ................................... 33 .
TROUBLESHOOTING ............................................... 8 . CAN COMMUNICATION UNIT ........................... 33 . I
NVH Troubleshooting Chart .................................... 8 . Circuit Diagram ...................................................... 44.
TRANSFER OIL ......................................................... 9. Wiring Diagram ...................................................... 45 .
Replacement ........................................................... 9
. TROUBLE DIAGNOSIS ........................................... 49 . J
DRAINING ............................................................ 9
. Fail-Safe Function ................................................. 49 .
FILLING ................................................................ 9
. How to Proceed with Trouble Diagnosis ................ 49 .
Inspection ................................................................ 9
. BASIC CONCEPT .............................................. 49 .
K
OIL LEAKAGE AND OIL LEVEL .......................... 9 . Trouble Diagnosis Chart for Symptoms ................. 50 .
SIDE OIL SEAL ....................................................... 10. AWD Control Unit Input/Output Signal Reference
Removal and Installation ....................................... 10 . Value ...................................................................... 51
.
REMOVAL .......................................................... 10
. AWD CONTROL UNIT CONNECTOR TERMI- L
INSTALLATION .................................................. 10 . NAL LAYOUT ..................................................... 51 .
AIR BREATHER HOSE ............................................11 . REFERENCE STANDARD TABLE ..................... 51 .
Removal and Installation ........................................11 . CONSULT-II Functions .......................................... 53 . M
TRANSFER ASSEMBLY ......................................... 12 . FUNCTION ......................................................... 53 .
Removal and Installation ....................................... 12 . CONSULT-II FUNCTION APPLICATION TABLE 53 ...
REMOVAL .......................................................... 12
. SELF-DIAGNOSIS ............................................. 53 .
INSTALLATION .................................................. 12 . DATA MONITOR ................................................ 54 .
Components .......................................................... 13
. ACTIVE TEST MODE ........................................ 56 .
Pre- Inspection ...................................................... 14
. AWD CONTROL UNIT PART NUMBER ............ 56 .
BACKLASH ........................................................ 14. Component Inspection ........................................... 56 .
TOOTH CONTACT ............................................. 14 . AWD SOLENOID VALVE .................................... 56 .
PRELOAD TORQUE .......................................... 16 . System Inspection ................................................. 57 .
COMPANION FLANGE RUNOUT ..................... 17 . CONTROL UNIT POWER SUPPLY AND
Disassembly and Assembly .................................. 18 . GROUND ........................................................... 57 .
DISASSEMBLY .................................................. 18 . AWD CONTROL UNIT SYSTEM ....................... 58 .
INSPECTION ..................................................... 22 . ABS SYSTEM .................................................... 58 .
SELECTING ADJUSTING SHIMS ..................... 23 . AWD ACTUATOR SYSTEM ............................... 59 .
ASSEMBLY ........................................................ 24. AWD WARNING LAMP SYSTEM ...................... 59 .
AWD SYSTEM ......................................................... 30 . AWD LOCK SWITCH SIGNAL CIRCUIT ........... 59 .

Revision; 2004 April TF-1 2003 Murano
AWD SOLENOID SYSTEM ................................ 61 . ENGINE IS STARTED. .......................................68 .
CAN COMMUNICATION SYSTEM .................... 63 . WHILE DRIVING, AWD WARNING LAMP
Trouble Diagnosis for Symptoms ........................... 64 . FLASHES RAPIDLY. (WHEN IT FLASHES FOR
AWD LOCK INDICATOR LAMP DOES NOT APPROX. ONE MINUTE, THEN DOES NOT
COME ON FOR APPROXIMATELY 1 SECOND ILLUMINATE.) .....................................................68
.
WHEN THE IGNITION SWITCH IS TURNED TO WHILE DRIVING, AWD WARNING LAMP
ON. ..................................................................... 64
. FLASHES SLOWLY. (WHEN IT CONTINUES TO
AWD WARNING LAMP DOES NOT ILLUMINATE ILLUMINATE UNTIL ENGINE TURNS OFF.) .....68 .
WITH IGNITION SWITCH ON. ........................... 65 . VEHICLE DOES NOT ENTER AWD MODE
AWD WARNING LAMP DOES NOT GO OUT EVEN THOUGH AWD WARNING LAMP IS OFF....69
SEVERAL SECONDS AFTER ENGINE SERVICE DATA AND SPECIFICATIONS (SDS) .....72 .
STARTED.(AWD LOCK INDICATOR LAMP General Specifications ...........................................72
.
GOES OUT.) ....................................................... 66 . Inspection and Adjustment .....................................72.
HEAVY TIGHT-CORNER BRAKING SYMPTOM PRELOAD TORQUE BEFORE DISASSEMBLY...72
OCCURS WHEN THE VEHICLE IS DRIVEN IN PRELOAD TORQUE AFTER DISASSEMBLY
AUTO MODE AND THE STEERING WHEEL IS AND REASSEMBLY ...........................................72 .
TURNED FULLY TO EITHER SIDE AFTER THE BACKLASH .........................................................72
.
ENGINE IS STARTED. ....................................... 66 . COMPANION FLANGE RUNOUT ......................72 .
AWD MODE CANNOT BE SWITCHED AFTER SELECTIVE PARTS ...........................................72 .

Revision; 2004 April TF-2 2003 Murano
PRECAUTIONS

PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" ADS000KR

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: TF
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. E
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. F
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.
G
Precautions ADS000KT

q Before connecting or disconnecting the AWD control unit
harness connector, turn ignition switch "OFF" and discon- H
nect negative battery cable. Because battery voltage is
applied to AWD control unit even if ignition switch is turned
"OFF". I

SEF289H
K

q When connecting or disconnecting pin connectors into or
from AWD control unit, take care not to damage pin termi-
nals (bend or break). L
When connecting pin connectors make sure that there are
not any bends or breaks on AWD control unit pin terminal.
M

SEF291H

q Before replacing AWD control unit, perform AWD control
unit input/output signal inspection and make sure whether
AWD control unit functions properly or not. TF-51, "AWD
Control Unit Input/Output Signal Reference Value".

SDIA1848E

Revision; 2004 April TF-3 2003 Murano
PRECAUTIONS

Service Notice ADS000GI

q Be fore proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign matter.
q Disassembly should be done in a clean work area.
q Use lint -free cloth or towels for wiping parts clean. Common shop regs can leave fibers that could inter-
fere with the operation of the transfer.
q Place disassembled parts in order for easier and proper assembly.
q All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
q Gaskets, seals and O-rings should replaced any time the transfer is disassembled.
q It is very important to perform functional tests whenever they are indicated.
q Before assembly, apply a coat of recommended transfer oil to all parts. Apply petroleum jelly to protect O-
rings and seals, and to hold bearings and washers in place during assembly. Do not use grease.
q Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
q After overhaul refill the transfer with new transfer oil.
Wiring Diagrams and Trouble Diagnosis ADS000KU

When you read wiring diagrams, refer to the following:
q GI-14, "How to Read Wiring Diagrams".
q PG-3, "POWER SUPPLY ROUTING CIRCUIT".
When you perform trouble diagnosis, refer to the following:
q GI-10, "How to Follow Trouble Diagnoses".
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident".

Revision; 2004 April TF-4 2003 Murano
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools ADS000GJ

Tool number (Kent-Moore No.)
Description
Tool name B

KV38101700 ( -- ) C
a: 82 mm (3.23 in) dia. Installing side oil seal (installing adapter case
b: 78 mm (3.07 in) dia. oil seal)
Drift
TF
ZZA1149D

E
ST3127S000 (J25765-A)
Measuring preload torque
Preload gauge
F

ZZA0503D

G
ST33220000 (J25804-01)
a: 37 mm (1.46 in) dia.
b: 31 mm (1.22 in) dia. Removing drive pinion
c: 22 mm (0.87 in) dia. H
Drift
ZZA1046D

KV381054S0 (J34286) q Removing pinion bearing outer race
J
Puller q Removing gear ring oil seal

ZZA0601D K

L
ST30031000 (J22912-01)
Removing pinion bearing inner race
Replacer

M
ZZA0700D

ST33200000 (J26082) q Removing gear ring bearing inner race on
a: 60 mm (2.36 in) dia. adapter case
b: 44.5 mm (1.75 in) dia.
Drift q Installing companion flange

ZZA1002D

ST33061000 (J8107-2)
a: 38 mm (1.50 in) dia. Removing gear ring bearing inner race on
b: 28.5 mm (1.122 in) dia. gear ring
Drift

ZZA0810D

Revision; 2004 April TF-5 2003 Murano
PREPARATION

Tool number (Kent-Moore No.)
Description
Tool name

q Installing gear ring bearing outer race on
transfer case
q Installing transfer case oil seal
ST30720000 (J25405)
q Installing gear ring bearing inner race on
a: 77 mm (3.03 in) dia.
transfer case
b: 55.5 mm (2.185 in) dia.
Drift q Installing gear ring bearing inner race on
adapter case
ZZA0811D
q Installing gear ring bearing outer race on
adapter case

KV40101840 ( -- )
a: 77 mm (3.03 in) dia. Installing gear ring bearing outer race on
b: 85 mm (3.35 in) dia. transfer case
Drift

ZZA0881D

ST33230000 (J25805-01)
a: 51 mm (2.01 in) dia.
b: 41 mm (1.61 in) dia. Installing gear ring oil seals
c: 28.5 mm (1.122 in) dia.
Drift
ZZA1046D

ST27863000 ( -- )
a: 74.5 mm (2.933 in) dia. Installing gear ring bearing inner race on
b: 62.5 mm (2.461 in) dia. transfer case
Drift

ZZA1003D

KV40101630 (J35870)
a: 68 mm (2.68 in) dia. Installing gear bearing inner race on transfer
b: 60 mm (2.36 in) dia. case
Drift

ZZA1003D

KV38102510 ( -- )
a: 71 mm (2.80 in) dia. Installing gear ring bearing inner race on
b: 65 mm (2.56 in) dia. adapter case
Drift

ZZA1003D

KV40105230 ( -- )
a: 92 mm (3.62 in) dia. Installing gear ring bearing outer race on
b: 86 mm (3.39 in) dia. adapter case
Drift

ZZA1141D

Revision; 2004 April TF-6 2003 Murano
PREPARATION

Tool number (Kent-Moore No.)
Description A
Tool name

KV38100300 (J25523) B
a: 54 mm (2.13 in) dia.
Installing pinion rear bearing outer race on
b: 46 mm (1.81 in) dia.
adapter case
c: 32 mm (1.26 in) dia.
Drift C
ZZA1046D

TF
ST33400001 (J26082) q Installing pinion front bearing outer race on
a: 60 mm (2.36 in) dia. adapter case
b: 47 mm (1.85 in) dia. q Installing pinion sleeve oil seals on adapter
Drift case
E

ZZA0814D

F
ST30901000 (J26010-01) q Installing pinion front bearing outer race on
a: 79 mm (3.11 in) dia. adapter case
b: 45 mm (1.77 in) dia.
q Installing pinion front bearing inner race on G
c: 35.2 mm (1.386 in) dia.
Drift adapter case

ZZA0978D
H

Revision; 2004 April TF-7 2003 Murano
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PFP:00003

NVH Troubleshooting Chart ADS000GK

Use the chart below to help you find the cause of the malfunction.The numbers indicate the order of the
inspection. If necessary, repair or replace these parts.

TF-13

TF-22

TF-22
TF-9
Reference page

TRANSFER OIL (Level too high)

BEARING (Worn or damaged)
OIL SEAL (Worn or damaged)
LIQUID GASKET (Damaged)
TRANSFER OIL (Level low)

GEAR (Worn or damaged)
TRANSFER OIL (Wrong)
Possible cause and Suspected parts

Noise 1 2 3 3
Symptom
Transfer oil leakage 3 1 2 2

Revision; 2004 April TF-8 2003 Murano
TRANSFER OIL

TRANSFER OIL PFP:KLD30
A
Replacement ADS000GL

DRAINING
CAUTION: B
When draining oil, protect exhaust tube flange with cover.
1. Run the vehicle to warm up the transfer body sufficiently.
2. Stop the engine, and remove the drain plug to drain the transfer C
oil.
3. Apply recommended sealant to drain plug. Install drain plug on
transfer and tighten to the specified torque. Refer to TF-13,
TF
"Components" .

SDIA1507E
F
FILLING
1. Remove filler plug and add gear oil until oil level reaches the
specified limit near filler plug mounting hole. G
Oil capacity : Approx. 0.31 (5/8 US pt, 1/2 lmp pt)
CAUTION: H
Carefully fill the oil. (Fill up for approx. 3 minutes)
2. Leave the vehicle for 3 minutes, and check the oil level again.
3. Apply recommended sealant to filler plug. Install filler plug on I
transfer and tighten to the specified torque. Refer to TF-13,
"Components" .
SDIA1508E
J
Inspection ADS000GM

OIL LEAKAGE AND OIL LEVEL
1. Check oil level from filler plug mounting hole as shown in the fig-
K
ure.
2. Before installing filler plug, apply recommended sealant. Install
filler plug on transfer and tighten to the specified torque. Refer to
TF-13, "Components" . L

SDIA1508E

Revision; 2004 April TF-9 2003 Murano
SIDE OIL SEAL

SIDE OIL SEAL PFP:33142

Removal and Installation ADS000GN

REMOVAL
1. Remove the drive shaft. Refer to FAX-8, "Removal and Installation (Right Side)" , FAX-7, "Removal and
Installation (Left Side)" .
2. Remove oil seal with a flat-bladed screwdriver.
CAUTION:
Be careful not to damage the adapter case.

SDIA1546E

INSTALLATION
1. Apply multi-purpose grease to oil seal lips. As shown in the fig-
ure, using a drift, install the oil seal so that it becomes flush with
the case end surface.
Tool number : KV38101700 ( -- )
CAUTION:
q Discard old oil seals, replace with new ones.
q When installing, do not incline the oil seal.

2. Install the drive shaft. Refer to FAX-8, "Removal and Installation
(Right Side)" , FAX-7, "Removal and Installation (Left Side)" .
CAUTION: SDIA1547E

Be careful not to damage the oil seals.
3. Check oil level. Refer to TF-9, "TRANSFER OIL" .

Revision; 2004 April TF-10 2003 Murano
AIR BREATHER HOSE

AIR BREATHER HOSE PFP:31098
A
Removal and Installation ADS000GO

q Refer to the figure for air breather hose removal and installation information.
B

SDIA1511E J
CAUTION:
q Be sure to insert air breather hose into transfer tube (metal connector) until hose end reaches the
tube's base. K
q Make sure there are no pinched or restricted areas on the air breather hose caused by bending or
winding when installing it.
L

Revision; 2004 April TF-11 2003 Murano
TRANSFER ASSEMBLY

TRANSFER ASSEMBLY PFP:33100

Removal and Installation ADS000GP

SDIA1491E

1. Transfer assembly 2. Transaxle assembly 3. Rear gusset
4. Transfer gusset

REMOVAL
Remove the engine assembly. Refer to EM-95, "ENGINE ASSEMBLY" .
1. Remove gusset mounting bolts, and then remove gusset from engine and transaxle.
2. Remove transfer mounting bolts and separate transfer from transaxle.
CAUTION:
After removing transfer from transaxle, be sure to replace differential side oil seal of the transaxle side
with new one. Refer to CVT-191, "DIFFERENTIAL SIDE OIL SEAL" .
INSTALLATION
Note the following, and install in the reverse order of removal.
q When installing the transfer to the transaxle, install the mounting
bolts following the standard below.
Bolt No. 1 2
Quantity 4 2
Nominal length mm (in) 65 (2.56) 40 (1.57)
Tightening torque
29.4 - 39.2 (3.0 - 3.9, 22 - 28)
[N

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