Nissan XTrail T30 2006 User Manual

D DRIVELINE/AXLE

SECTION TF

TRANSFER

CONTENTS

A

B

C

TF

E

PRECAUTIONS .........................................................	3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................	3
Precautions .............................................................	3
Service Notice or Precautions .................................	4
PREPARATION ..........................................................	5
Special Service Tools ..............................................	5
Commercial Service Tools .......................................	7
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ...............................................	8
NVH Troubleshooting Chart ....................................	8
TRANSFER OIL .........................................................	9
Changing Transfer Oil .............................................	9
DRAINING ............................................................	9
FILLING ................................................................	9
Checking Transfer Oil ..............................................	9
OIL LEAKAGE AND OIL LEVEL ..........................	9
AWD SYSTEM .........................................................	10
Power Transfer Diagram .......................................	10
System Description ...............................................	10
ELECTRIC CONTROLLED COUPLING ............	10
AWD CONTROL UNIT .......................................	10
AWD MODE SWITCH .........................................	11
AWD INDICATOR LAMP AND LOCK INDICA-
TOR LAMP ..........................................................	11
AWD WARNING LAMP .......................................	11
System Diagram ....................................................	12
COMPONENTS FUNCTION DESCRIPTION ....	13
CAN Communication .............................................	13
SYSTEM DESCRIPTION ...................................	13
TROUBLE DIAGNOSIS ...........................................	14
Fail-Safe Function .................................................	14
How to Perform Trouble Diagnosis .......................	14
BASIC CONCEPT ..............................................	14
Location of Electrical Parts ....................................	15
Circuit Diagram .....................................................	16
Wiring Diagram — AWD — .................................	... 17
Trouble Diagnosis Chart for Symptoms ................	20
AWD Control Unit Input/Output Signal Reference

Values ....................................................................	21
AWD CONTROL UNIT INSPECTION TABLE ....	21
CONSULT-II Function (ALL MODE AWD/4WD) ....	22
FUNCTION .........................................................	22
CONSULT-II SETTING PROCEDURE ...............	22
SELF-DIAG RESULTS MODE ...........................	23
DATA MONITOR MODE .....................................	24
ACTIVE TEST MODE ........................................	25
AWD CONTROL UNIT PART NUMBER ............	25
TROUBLE DIAGNOSIS FOR SYSTEM ...................	26
Power Supply Circuit for AWD Control Unit ...........	26
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ...............................................	26
DIAGNOSTIC PROCEDURE .............................	26
AWD Control Unit ..................................................	27
DIAGNOSTIC PROCEDURE .............................	27
ABS System ..........................................................	28
DIAGNOSTIC PROCEDURE .............................	28
AWD Solenoid .......................................................	28
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ...............................................	28
DIAGNOSTIC PROCEDURE .............................	29
COMPONENT INSPECTION .............................	31
AWD Actuator Relay ..............................................	32
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ...............................................	32
DIAGNOSTIC PROCEDURE .............................	32
AWD Mode Switch .................................................	33
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ...............................................	33
DIAGNOSTIC PROCEDURE .............................	33
COMPONENT INSPECTION .............................	35
Engine Control Signal ............................................	35
DIAGNOSTIC PROCEDURE .............................	35
CAN Communication Line .....................................	36
DIAGNOSTIC PROCEDURE .............................	36
TROUBLE DIAGNOSIS FOR SYMPTOMS .............	37
AWD Indicator Lamp and LOCK Indicator Lamp Do
Not Turn ON for Approx. 1 Second When Ignition
Switch Is Turned to ON .........................................	37

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TF-1

2006 X-Trail

DIAGNOSTIC PROCEDURE .............................	37
AWD Warning Lamp Does Not Turn ON When Igni-
tion Switch Is Turned to ON ...................................	38
DIAGNOSTIC PROCEDURE .............................	38
AWD Warning Lamp Does Not Turn OFF Several
Seconds After Engine Started ................................	39
DIAGNOSTIC PROCEDURE .............................	39
AWD Mode Cannot Be Switched After Engine Is
Started ...................................................................	40
DIAGNOSTIC PROCEDURE .............................	40
Heavy Tight-Corner Braking Symptom Occurs
WhenVehicle Is DriveninAUTO Mode and Steering
Wheel Is Turned Fully to Either Side after Engine
Is Started ...............................................................	41
DIAGNOSTIC PROCEDURE .............................	41
Vehicle Does Not Enter AWD Mode Even Though
AWD Warning Lamp Turned to OFF ......................	42
DIAGNOSTIC PROCEDURE .............................	42
WhileDriving,AWDWarningLampFlashesRapidly
(When Flashing in Approx. 1 Minute and Then Turn-
ing OFF) ................................................................	43
While Driving, AWD Warning Lamp Flashes Slowly
(When Continuing to Flash Until Turning Ignition
Switch OFF) ...........................................................	43
DIAGNOSTIC PROCEDURE .............................	43
AWD CONTROL UNIT .............................................	45
Removal and Installation .......................................	45
REMOVAL ..........................................................	45
INSTALLATION ...................................................	45

SIDE OIL SEAL ........................................................	46
Removal and Installation ........................................	46
REMOVAL ...........................................................	46
INSTALLATION ...................................................	46
AIR BREATHER HOSE ............................................	47
Components ...........................................................	47
Removal and Installation ........................................	47
TRANSFER ASSEMBLY ..........................................	48
Removal and Installation ........................................	48
COMPONENTS ..................................................	48
REMOVAL ...........................................................	48
INSTALLATION ...................................................	49
Disassembly and Assembly ...................................	50
COMPONENTS ..................................................	50
ASSEMBLY INSPECTION ..................................	51
DISASSEMBLY ...................................................	55
INSPECTION AFTER DISASSEMBLY ...............	59
SELECTING ADJUSTING SHIMS ......................	60
ASSEMBLY .........................................................	62
SERVICE DATA AND SPECIFICATIONS (SDS) .....67
General Specifications ...........................................	67
Inspection and Adjustment .....................................	67
PRELOAD TORQUE BEFORE DISASSEMBLY...	67
PRELOAD TORQUE AFTER DISASSEMBLY
AND REASSEMBLY ...........................................	67
BACKLASH .........................................................	67
COMPANION FLANGE RUNOUT ......................	67
SELECTIVE PARTS ...........................................	67

Revision: 2006 July

TF-2

2006 X-Trail

		PRECAUTIONS
	PRECAUTIONS	PFP:00001	A
	Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
	BELT PRE-TENSIONER”	ADS0016Z

	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. Information necessary to service the system safely is included in the SRS and SB section of
	this Service Manual.	C
	WARNING:
	● 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-	TF
	formed by an authorized NISSAN/INFINITI dealer.

●Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air

Bag Module, see the SRS section.

E

●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

●Before connecting or disconnecting the AWD control unit harness connector, turn ignition switch “OFF” and disconnect battery negative cable from battery negative terminal. Because battery voltage is applied to AWD control unit even if ignition switch is turned “OFF”.

●When connecting or disconnecting pin connectors into or from AWD control unit, take care not to damage pin terminals (bend or break).

When connecting pin connectors, make sure that there are no bends or breaks on AWD control unit pin terminal.

ADS00170

SEF289H

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SEF291H

●Before replacing AWD control unit, perform AWD control unit input/output signal inspection and make sure whether AWD control unit functions properly or not. Refer to TF-21, "AWD Control Unit Input/Output Signal Reference Values" .

SDIA1848E

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TF-3

2006 X-Trail

PRECAUTIONS

Service Notice or Precautions

ADS00171

●After overhaul refill the transfer with new transfer oil.

●Check the oil level or replace oil only with the vehicle parked on level surface.

●During removal or installation, keep inside of transfer clear of dust or dirt.

●Replace all tires at the same time. Always use tires of the proper size and the same brand and pattern. Fitting improper size and/or unusual wear tires applies excessive force to vehicle mechanism and can cause longitudinal vibration.

●Disassembly should be done in a clean work area.

●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.

●Check for the correct installation status prior to removal or disassembly. If matching marks are required, be certain they do not interfere with the function of the parts when applied.

●All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or reassembly.

●Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them with a new ones if necessary.

●Gaskets, seals, O-rings and lock nuts should be replaced any time when the transfer is disassembled.

●In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tightening sequence is specified, use it.

●Observe the specified torque when assembling.

●Clean and flush the parts sufficiently and blow-dry them.

●Be careful not to damage sliding surfaces and mating surfaces.

●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: 2006 July

TF-4

2006 X-Trail

	PREPARATION
PREPARATION	PFP:00002
Special Service Tools	ADS00173

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number

(Kent-Moore No.) Description Tool name

KV38101700			Installing side oil seal (installing adapter case
(	—	)	oil seal)
Drift

a:82 mm (3.23 in) dia.

b:78 mm (3.07 in) dia.

	ZZA1149D
ST3127S000	Measuring preload torque
(J-25765-A)
Preload gauge

	ZZA0503D
ST33220000	Removing drive pinion
(J-25804-01)
Drift

a:37 mm (1.46 in) dia.

b:31 mm (1.22 in) dia.

c:22 mm (0.87 in) dia.

		ZZA1046D
	KV381054S0	● Removing pinion rear bearing outer race
	(J-34286)	● Removing pinion front bearing outer race
	Puller
		● Removing gear ring oil seal

	ZZA0601D
ST30031000	Removing pinion front bearing inner race
(J-22912-01)
Replacer

	ZZA0700D
ST33200000	● Removing gear ring bearing inner race
(J-26082)	(adapter case side)
Drift	● Installing companion flange

a:60 mm (2.36 in) dia.

b:44.5 mm (1.752 in) dia.

	ZZA1002D
ST33061000	Removing gear ring bearing inner race
(J-8107-2)	(transfer case side)
Drift

a:38 mm (1.50 in) dia.

b:28.5 mm (1.122 in) dia.

ZZA0810D

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TF-5

2006 X-Trail

PREPARATION

Tool number

(Kent-Moore No.) Description Tool name

	ST30720000			● Installing gear ring bearing outer race
	(J-25405)			(transfer case side)
	Drift			● Installing gear ring bearing inner race
	a: 77 mm (3.03 in) dia.
				(transfer case side)
	b: 55.5 mm (2.185 in) dia.
				● Installing gear ring bearing inner race
				(adapter case side)
				● Installing gear ring bearing outer race
			ZZA0811D	(adapter case side)
				● Installing transfer case oil seal
	KV40101840			Installing gear ring bearing outer race
	(	—	)	(transfer case side)
	Drift

a:77 mm (3.03 in) dia.

b:85 mm (3.35 in) dia.

	ZZA0881D
ST33230000	Installing gear ring oil seal
(J-25805-01)
Drift

a:51 mm (2.01 in) dia.

b:41 mm (1.61 in) dia.

c:28.5 mm (1.122 in) dia.

			ZZA1046D
ST27863000			Installing gear ring bearing inner race
(	—	)	(transfer case side)
Drift

a:74.5 mm (2.933 in) dia.

b:62.5 mm (2.461 in) dia.

	ZZA1003D
KV40101630	Installing gear ring bearing inner race
(J-35870)	(transfer case side)
Drift

a:68 mm (2.68 in) dia.

b:60 mm (2.36 in) dia.

			ZZA1003D
KV38102510			Installing gear ring bearing inner race
(	—	)	(adapter case side)
Drift

a:71 mm (2.80 in) dia.

b:65 mm (2.56 in) dia.

			ZZA1003D
KV40105230			Installing gear ring bearing outer race
(	—	)	(adapter case side)
Drift

a:92 mm (3.62 in) dia.

b:86 mm (3.39 in) dia.

ZZA1141D

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TF-6

2006 X-Trail

PREPARATION

Tool number
(Kent-Moore No.)	Description
Tool name
KV38100300	Installing pinion rear bearing outer race
(J-25523)
Drift

a:54 mm (2.13 in) dia.

b:46 mm (1.81 in) dia.

c:32 mm (1.26 in) dia.

		ZZA1046D
	ST33400001	● Installing pinion front bearing outer race
	(J-26082)	● Installing pinion sleeve oil seal
	Drift

a:60 mm (2.36 in) dia.

b:47 mm (1.85 in) dia.

		ZZA0814D
	ST30901000	● Installing pinion front bearing outer race
	(J-26010-01)	● Installing pinion front bearing inner race
	Drift

a:79 mm (3.11 in) dia.

b:45 mm (1.77 in) dia.

c:35.2 mm (1.386 in) dia.

	ZZA0978D
Commercial Service Tools	ADS00189
Tool name	Description
Power tool	Loosening nuts and bolts

PBIC0190E

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TF-7

2006 X-Trail

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

PFP:00003

ADS00174

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

Reference page

TF-9

TF-50

TF-50

TF-50

TF-59

TF-59

SUSPECTED PARTS

TRANSFER OIL (Level low)

TRANSFER OIL (Wrong)

TRANSFER OIL (Level too high)

LIQUID GASKET (Damaged)

O-RING (Worn or damaged)

OIL SEAL (Worn or damaged)

GEAR (Worn or damaged)

BEARING (Worn or damaged)

(Possible cause)

Symptom

Noise

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3

Transfer oil leakage

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2

2

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TF-8

2006 X-Trail

	TRANSFER OIL
TRANSFER OIL	PFP:KLD30
Changing Transfer Oil	ADS00175
DRAINING

CAUTION:

When draining oil, protect exhaust tube with cover.

1.Run vehicle to warm up transfer body sufficiently.

2.Stop engine, and remove drain plug to drain transfer oil.

3.Apply sealant to drain plug. Install drain plug on transfer and tighten to the specified torque. Refer to TF-50, "COMPONENTS" .

●Use Genuine Silicone RTV or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants" .

SDIA0512E

FILLING
1. Remove filler plug and add gear oil until oil level reaches the
specified limit near filler plug mounting hole.
Oil grade and Viscosity:
Refer to MA-10, "Fluids and Lubricants" .
Oil capacity:
Approx. 0.31 (5/8 US pt, 1/2 lmp pt)
CAUTION:
Carefully fill oil. (Fill up for approx. 3 minutes)
2. Leave vehicle for 3 minutes, and check oil level again.	SDIA0513E

3.Apply sealant to filler plug. Install filler plug on transfer and tighten to the specified torque. Refer to TF-50, "COMPONENTS" .

●Use Genuine Silicone RTV or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants" .

Checking Transfer Oil

ADS00176

OIL LEAKAGE AND OIL LEVEL

1.Check oil level from filler plug mounting hole as shown in the figure.

CAUTION:

Do not start engine while checking oil level.

2.Before installing filler plug, apply sealant. Install filler plug on transfer and tighten to the specified torque. Refer to TF-50, "COMPONENTS" .

●Use Genuine Silicone RTV or equivalent. Refer to GI-47, "Recommended Chemical Products and Sealants" .

SDIA0513E

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TF-9

2006 X-Trail

AWD SYSTEM

AWD SYSTEM

Power Transfer Diagram

System Description

ELECTRIC CONTROLLED COUPLING

Operation Principle

1.The AWD control unit supplies command current to the electric controlled coupling (AWD solenoid).

2.The control clutch is engaged by the electromagnet and torque is detected in control clutch.

3.The cam operates in response to the control clutch torque and applies pressure to the main clutch.

4.The main clutch transmits torque to front wheels according to pressing power.

●Transmission torque to the rear wheels is determined according to command current.

AWD CONTROL UNIT

●AWD control unit controls distribution of drive power between front-wheel drive (100:0) and AWD (50:50) conditions according to the signals from the sensors.

●Self-diagnosis results can be read with CONSULT-II.

PFP:41650

ADS00177

SDIA1607E

ADS00178

SDIA2501E

SDIA1844E

SDIA2502E

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TF-10

2006 X-Trail

AWD SYSTEM

AWD MODE SWITCH
AUTO Mode	A

●Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.

●AWD mode makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.

	● On roads which do not require AWD, AUTO mode contributes to improved fuel economy by driving in con-	B
	ditions close to front-wheel drive.
	● Sensor inputs determine the vehicle's turning condition, and tight cornering/braking are controlled by dis-	C
	tributing optimum torque to the rear wheels.

LOCK Mode
● Front/rear wheel torque distribution is fixed, ensuring stable driving when climbing slopes.	TF

●AWD control unit will switch automatically to AUTO mode if vehicle speed increases. If vehicle speed then decreases, the vehicle automatically returns to direct 4-wheel driving conditions.

●LOCK mode will change to AUTO mode automatically, when the vehicle speed exceeds approx. 30 km/h (19 MPH). The LOCK indicator light keeps illuminating.

NOTE:

If there is a significant difference in pressure or wear between tires, full vehicle performance is not available. LOCK mode may be prohibited, or speeds at which LOCK mode is enabled may be restricted detecting tire conditions.

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F

2WD Mode

Vehicle is in front-wheel drive.

NOTE:

●If front wheels are slipping in 2WD mode, do not switch to AUTO or LOCK. This can cause difficulties for the system.

●Even if the AWD mode switch is in 2WD mode, the AWD control unit occasionally automatically change to

AUTO mode depending on the driving condition (For example; Depressing the acceleration firmly). This is not malfunction. However, AWD indicator lamp dose not illuminate.

AWD INDICATOR LAMP AND LOCK INDICATOR LAMP

The following is the indications of indicator lamp.

Condition	AWD indicator lamp	LOCK indicator lamp
AUTO mode	ON	OFF
LOCK mode	ON	ON
2WD mode	OFF	OFF
Lamp check	Turns ON for approx. 1 second when ignition switch is turned ON.

SDIA2503E

AWD WARNING LAMP

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Turns ON when there is a malfunction in AWD system. It indicates that the vehicle is in fail-safe mode and changes to front-wheel drive or shifting driving force-AWD (Rear-wheels still have some driving torque).

Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1 second after the engine starts if system is normal.

AWD Warning Lamp Indication

Condition

AWD warning lamp

Lamp check

Turns ON when ignition switch is turned ON. Turns OFF approx. 1 seconds after engine start.

AWD system malfunction

ON

Protection function is activated due to heavy load to electric controlled coupling. (AWD system is not malfunctioning and AWD system

Rapid flashing: 2 times/second

changes to 2WD mode.)

(Flashing in approx. 1 minute and then turning OFF.)

Revision: 2006 July

TF-11

2006 X-Trail

	AWD SYSTEM
Condition		AWD warning lamp
Large difference in diameter of front/rear tires		Slow flashing: 1 time/2 seconds
		(Continuing to flash until turning ignition switch OFF)
Other than above (system normal)		OFF
System Diagram		ADS00179

SDIA2504E

Revision: 2006 July

TF-12

2006 X-Trail

AWD SYSTEM

COMPONENTS FUNCTION DESCRIPTION

	Component parts	Function
		● Controls driving force distribution by signals from each sensor and switches from front wheel driv-
	AWD control unit	ing mode (100:0) to AWD mode (50:50).
		● 2WD mode is available by fail-safe function if malfunction is detected in electrical system.
	Wheel sensors	Detects wheel speed.
	AWD solenoid	Controls electric controlled coupling by operation signal from AWD control unit.
	Electric controlled coupling	Transmits driving force to rear final drive.
	AWD mode switch	Able to select from 2WD, AUTO or LOCK mode.
		● Illuminates if malfunction is detected in electrical system of AWD system.
	AWD warning lamp	● There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.
		● There are 2 blinks in 1 second if load is still applied to driving parts.
	AWD indicator lamp	Indicates operation with optimal distribution of torque to front/rear wheels.
	LOCK indicator lamp	Indicates that AWD system is under direct 4-wheel driving mode.
	ABS actuator and electric unit	Transmits the following signals via CAN communication to AWD control unit.
	(control unit) (without VDC) or	● Vehicle speed signal
	VDC/TCS/ABS control unit
		● Stop lamp switch signal (brake signal)
	(with VDC)
		Transmits the following signals via CAN communication to AWD control unit.
	ECM	● Accelerator pedal position signal
		● Engine speed signal
	Unified meter control unit	Transmits conditions of parking brake switch via CAN communication to AWD control unit.

CAN Communication	ADS0017A
SYSTEM DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

For details, refer to LAN-21, "CAN Communication Unit" .

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TF-13

2006 X-Trail

TROUBLE DIAGNOSIS

TROUBLE DIAGNOSIS

Fail-Safe Function

PFP:00004

ADS0017B

●If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warning lamp on combination meter turns ON to indicate system malfunction.

●When AWD warning lamp is ON, vehicle changes to front-wheel drive or shifting driving force-AWD (Rearwheels still have some driving torque).

How to Perform Trouble Diagnosis

ADS0017C

BASIC CONCEPT

●To perform trouble diagnosis, it is the most important to have understanding about vehicle systems (control and mechanism) thoroughly.

●It is also important to clarify customer complaints before inspection.

First of all, reproduce symptoms, and understand them fully. Ask customer about his/her complaints carefully. In some cases, it will be necessary to check symptoms by driving vehicle with customer.

CAUTION:

Customers are not professional. It is dangerous to make an easy guess like "maybe the customer means that...," or "maybe the customer mentions this symptom".

SEF233G

●It is essential to check symptoms right from the beginning in order to repair malfunctions completely.

For intermittent malfunctions, reproduce symptoms based on interview with customer and past examples. Do not perform inspection on ad hoc basis. Most intermittent malfunctions are caused by poor contacts. In this case, it will be effective to shake suspected harness or connector by hand. When repairing without any symptom diagnosis, you cannot judge if malfunctions have actually been eliminated.

●After completing diagnosis, always erase diagnostic memory.

Refer to TF-24, "How to Erase Self-Diagnosis Results" .

SEF234G

●For intermittent malfunctions, move harness or harness connec-

tor by hand. Then check for poor contact or reproduced open circuit.

Revision: 2006 July

TF-14

2006 X-Trail

TROUBLE DIAGNOSIS

Location of Electrical Parts

ADS0017D

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TF-15

2006 X-Trail

TROUBLE DIAGNOSIS

Circuit Diagram

ADS0017E

TDWB0001E

Revision: 2006 July

TF-16

2006 X-Trail

TROUBLE DIAGNOSIS

Wiring Diagram — AWD —

ADS0017F

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TDWB0002E

Revision: 2006 July

TF-17

2006 X-Trail

TROUBLE DIAGNOSIS

TDWB0053E

Revision: 2006 July

TF-18

2006 X-Trail

TROUBLE DIAGNOSIS

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TDWB0004E

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TF-19

2006 X-Trail

TROUBLE DIAGNOSIS

	Trouble Diagnosis Chart for Symptoms			ADS0017G
	If AWD warning lamp turns ON, perform self-diagnosis. Refer to TF-23, "SELF-DIAG RESULTS MODE" .
	Symptom	Condition	Check item	Reference page
	AWD indicator lamp and LOCK indicator		CAN communication line
	lamp do not turn ON for approx. 1 second
			Power supply and ground for AWD con-
	when ignition switch is turned to ON.	Ignition switch: ON		TF-37
			trol unit
	(AWD indicator lamp and LOCK indicator
	lamp check)		Unified meter control unit
	AWD warning lamp does not turn ON when		CAN communication line
	ignition switch is turned to ON.	Ignition switch: ON		TF-38
			Unified meter control unit
	(AWD warning lamp check)
			CAN communication line
			Power supply and ground for AWD con-
			trol unit
	AWD warning lamp does not turn OFF sev-	Engine running	Unified meter control unit	TF-39
	eral seconds after engine started.
			AWD solenoid
			AWD actuator relay (integrated in AWD
			control unit)
			Wheel sensor
			AWD mode switch
	AWD mode cannot be switched after engine
		Engine running	CAN communication line	TF-40
	is started.
			Unified meter control unit
			CAN communication line
		● While driving
	Heavy tight-corner braking symptom occurs		AWD mode switch
		● AUTO mode
	when vehicle is driven in AUTO mode and		Accelerator pedal position signal	TF-41
		● Steering wheel is
	steering wheel is turned fully to either side
			AWD solenoid
	after engine is started. (See NOTE.)	turned fully to either
		sides	Mechanical malfunction of electric con-
			trolled coupling (clutch sticking etc.)
			AWD solenoid
		Vehicle speed: 10 km/h
			Mechanical malfunction of electric con-
		(6 MPH) or less
			trolled coupling (Mechanical engage-
			ment of clutch is not possible.)
	Vehicle does not enter AWD mode even
			Operating condition of parking brake	TF-42
	though AWD warning lamp turned to OFF.
		Vehicle speed: 10 km/h	AWD solenoid
		(6 MPH) or more	Mechanical malfunction of electric con-
			trolled coupling (Mechanical engage-
			ment of clutch is not possible.)
	While driving, AWD warning lamp flashes	● While driving	Protection function is activated due to
	rapidly. (When flashing in approx. 1 minute		heavy load to electric controlled cou-
		● AUTO mode and		TF-43
	and then turning OFF.)		pling. (AWD system is not malfunction-
		LOCK mode
	Rapid flashing: 2 times/second		ing.)
	While driving, AWD warning lamp flashes	● While driving
	slowly. (When continuing to flash until turn-		Tire size is different between front and
		● Vehicle speed: 20 km/h		TF-43
	ing ignition switch OFF)		rear of vehicle.
		(12 MPH) or more
	Slow flashing: 1 time/2 seconds
	NOTE:

●Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode. This is not malfunction.

●Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions: LOCK mode, steering wheel is turned fully to either side, and accelerator pedal was depressed.

Revision: 2006 July

TF-20

2006 X-Trail

TROUBLE DIAGNOSIS

	AWD Control Unit Input/Output Signal Reference Values				ADS0017H
	AWD CONTROL UNIT INSPECTION TABLE
	Specifications with CONSULT-II
	Monitor item [Unit]	Content	Condition		Display value
			Vehicle stopped		0.00 km/h (0.00 mph)
	FR RH SENSOR [km/h] or [mph]	Wheel speed (Front wheel	Vehicle running		Approximately equal to
			CAUTION:
		right)
					the indication on speed-
			Check air pressure of tire under
					ometer (Inside of ± 10%)
			standard condition.
			Vehicle stopped		0.00 km/h (0.00 mph)
	FR LH SENSOR [km/h] or [mph]	Wheel speed (Front wheel	Vehicle running		Approximately equal to
			CAUTION:
		left)
					the indication on speed-
			Check air pressure of tire under
					ometer (Inside of ± 10%)
			standard condition.
			Vehicle stopped		0.00 km/h (0.00 mph)
	RR RH SENSOR [km/h] or [mph]	Wheel speed (Rear wheel	Vehicle running		Approximately equal to
			CAUTION:
		right)
					the indication on speed-
			Check air pressure of tire under
					ometer (Inside of ± 10%)
			standard condition.
			Vehicle stopped		0.00 km/h (0.00 mph)
	RR LH SENSOR [km/h] or [mph]	Wheel speed (Rear wheel	Vehicle running		Approximately equal to
			CAUTION:
		left)
					the indication on speed-
			Check air pressure of tire under
					ometer (Inside of ± 10%)
			standard condition.
	BATTERY VOLT [V]	Power supply voltage for	Ignition switch: ON		Battery voltage
		AWD control unit
			When depressing accelerator pedal
	THRTL POS SEN [%]	Throttle opening condition	(Value rises gradually in response to		0 - 100%
			throttle position.)
				2WD	Approx. 0.000A
			Engine speed
				AUTO	Approx. 0.000A
			: At idle
	ETS SOLENOID [A]	Monitored value of current at		LOCK	Approx. 0.000A
		AWD solenoid
			Engine speed	2WD	Approx. 0.000A
			: 3,000 rpm or more con-	AUTO	Approx. 0.000 - 1.500A*
			stant
				LOCK	Approx. 2.800A
	STOP LAMP SW [ON/OFF]	Condition of brake pedal	Brake pedal: Depressed		ON
		operation
			Brake pedal: Released		OFF
			Engine stopped		STOP
			(Engine speed: Less than 400 rpm)
	ENG SPEED SIG [RUN/STOP]	Condition of engine running
			Engine running		RUN
			(Engine speed: 400 rpm or more)
		Operating condition of AWD	Engine stopped (Ignition		OFF
			switch: ON)
	ETS ACTUATOR [ON/OFF]	actuator relay (integrated in
		AWD control unit)
			Engine running		ON
	4WD WARN LAMP [ON/OFF]	AWD warning lamp condition	AWD warning lamp: ON		ON
			AWD warning lamp: OFF		OFF
				2WD	2WD
	4WD MODE SW [2WD/AUTO/	Input condition from AWD
			AWD mode switch	AUTO	AUTO
	LOCK]	mode switch
				LOCK	LOCK

A

B

C

TF

E

F

G

H

I

J

K

L

M

Revision: 2006 July

TF-21

2006 X-Trail