Nissan XTrail T30 2006 User Manual

4.6 (5)

C TRANSMISSION/TRANSAXLE

SECTION AT

AUTOMATIC TRANSAXLE

CONTENTS

A

B

AT

D

E

INDEX FOR DTC .......................................................

5

Alphabetical Index ...................................................

5

DTC No. Index ........................................................

6

PRECAUTIONS .........................................................

7

Precautions for Supplemental Restraint System

 

(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

 

SIONER” .................................................................

7

PrecautionsforOnBoardDiagnostic(OBD)System

 

of A/T and Engine ...................................................

7

Precautions .............................................................

7

Service Notice or Precautions .................................

9

PREPARATION ........................................................

10

Special Service Tools ............................................

10

Commercial Service Tools .....................................

14

A/T FLUID ................................................................

16

Checking A/T Fluid ................................................

16

Changing A/T Fluid ...............................................

17

A/T Fluid Cooler Cleaning .....................................

17

A/T CONTROL SYSTEM .........................................

20

Cross-sectional View .............................................

20

Shift Mechanism ....................................................

21

TCM Function ........................................................

30

CAN Communication .............................................

31

Input/Output Signal of TCM ...................................

31

Line Pressure Control ...........................................

32

Shift Control ..........................................................

33

Lock-up Control .....................................................

34

Engine Brake Control (Overrun Clutch Control) ....

35

Control Valve .........................................................

37

ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........

38

Introduction ...........................................................

38

OBD-II Function for A/T System ............................

38

One or Two Trip Detection Logic of OBD-II ...........

38

OBD-II Diagnostic Trouble Code (DTC) ................

38

Malfunction Indicator Lamp (MIL) ..........................

41

TROUBLE DIAGNOSIS ...........................................

42

DTC Inspection Priority Chart ...............................

42

Fail-safe ................................................................

42

How to Perform Trouble Diagnoses for Quick and

 

Accurate Repair ....................................................

44

A/T Electrical Parts Location .................................

49

Circuit Diagram ......................................................

50

Inspections before Trouble Diagnosis ...................

51

Road Test ..............................................................

56

Check before Engine Is Started .............................

56

Check at Idle ...........................................................

57

Cruise Test — Part 1 ...........................................

... 59

Cruise Test — Part 2 ...........................................

... 62

Cruise Test — Part 3 ...........................................

... 63

Vehicle Speed When Shifting Gears .....................

65

Vehicle Speed When Performing and Releasing

 

Lock-up ..................................................................

65

Symptom Chart ......................................................

66

TCM Terminals and Reference Value ....................

76

CONSULT-II Function (A/T) ...................................

79

Diagnostic Procedure Without CONSULT-II ..........

88

DTC U1000 CAN COMMUNICATION LINE .............

92

Description .............................................................

92

On Board Diagnosis Logic .....................................

92

Possible Cause ......................................................

92

DTC Confirmation Procedure ................................

92

Wiring Diagram — AT — CAN .............................

... 93

Diagnostic Procedure ............................................

94

DTC P0705 PARK/NEUTRAL POSITION (PNP)

 

SWITCH ....................................................................

95

Description .............................................................

95

CONSULT-II Reference Value ...............................

95

On Board Diagnosis Logic .....................................

95

Possible Cause ......................................................

95

DTC Confirmation Procedure ................................

95

Wiring Diagram — AT — PNP/SW ......................

... 96

Diagnostic Procedure ............................................

98

DTC P0710 A/T FLUID TEMPERATURE SENSOR

CIRCUIT .................................................................

100

Description ...........................................................

100

CONSULT-II Reference Value .............................

100

On Board Diagnosis Logic ...................................

100

Possible Cause ....................................................

100

DTC Confirmation Procedure ..............................

100

Wiring Diagram — AT — FTS .............................

. 101

F

G

H

I

J

K

L

M

Revision: 2006 July

AT-1

2006 X-Trail

Diagnostic Procedure ..........................................

102

Component Inspection .........................................

104

DTC P0720 VEHICLE SPEED SENSOR·A/T (REV-

OLUTION SENSOR) ..............................................

105

Description ...........................................................

105

CONSULT-II Reference Value .............................

105

On Board Diagnosis Logic ...................................

105

Possible Cause ....................................................

105

DTC Confirmation Procedure ..............................

105

Wiring Diagram — AT — VSSA/T ........................

. 107

Diagnostic Procedure ..........................................

108

DTC P0725 ENGINE SPEED SIGNAL ..................

111

Description ............................................................

111

CONSULT-II Reference Value ..............................

111

On Board Diagnosis Logic ....................................

111

Possible Cause .....................................................

111

DTC Confirmation Procedure ...............................

111

Wiring Diagram — AT — ENGSS ........................

. 112

Diagnostic Procedure ..........................................

113

DTC P0731 A/T 1ST GEAR FUNCTION ................

115

Description ...........................................................

115

On Board Diagnosis Logic ...................................

115

Possible Cause ....................................................

115

DTC Confirmation Procedure ..............................

115

Wiring Diagram — AT — 1STSIG ........................

. 117

Diagnostic Procedure ..........................................

118

DTC P0732 A/T 2ND GEAR FUNCTION ...............

120

Description ...........................................................

120

On Board Diagnosis Logic ...................................

120

Possible Cause ....................................................

120

DTC Confirmation Procedure ..............................

120

Wiring Diagram — AT — 2NDSIG .......................

. 122

Diagnostic Procedure ..........................................

123

DTC P0733 A/T 3RD GEAR FUNCTION ...............

125

Description ...........................................................

125

On Board Diagnosis Logic ...................................

125

Possible Cause ....................................................

125

DTC Confirmation Procedure ..............................

125

Wiring Diagram — AT — 3RDSIG .......................

. 127

Diagnostic Procedure ..........................................

128

DTC P0734 A/T 4TH GEAR FUNCTION ...............

130

Description ...........................................................

130

CONSULT-II Reference Value .............................

130

On Board Diagnosis Logic ...................................

130

Possible Cause ....................................................

130

DTC Confirmation Procedure ..............................

131

Wiring Diagram — AT — 4THSIG .......................

. 132

Diagnostic Procedure ..........................................

133

DTC P0740 TORQUE CONVERTER CLUTCH

 

SOLENOID VALVE ................................................

137

Description ...........................................................

137

CONSULT-II Reference Value .............................

137

On Board Diagnosis Logic ...................................

137

Possible Cause ....................................................

137

DTC Confirmation Procedure ..............................

137

Wiring Diagram — AT — TCV .............................

. 138

Diagnostic Procedure ..........................................

139

Component Inspection .........................................

141

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 142

Description ...........................................................

142

CONSULT-II Reference Value ..............................

142

On Board Diagnosis Logic ...................................

142

Possible Cause ....................................................

142

DTC Confirmation Procedure ...............................

143

Wiring Diagram — AT — TCCSIG .......................

.144

Diagnostic Procedure ...........................................

145

DTC P0745 LINE PRESSURE SOLENOID VALVE.150

Description ...........................................................

150

CONSULT-II Reference Value ..............................

150

On Board Diagnosis Logic ...................................

150

Possible Cause ....................................................

150

DTC Confirmation Procedure ...............................

150

Wiring Diagram — AT — LPSV ...........................

.151

Diagnostic Procedure ...........................................

152

Component Inspection .........................................

155

DTC P0750 SHIFT SOLENOID VALVE A ..............

156

Description ...........................................................

156

CONSULT-II Reference Value ..............................

156

On Board Diagnosis Logic ...................................

156

Possible Cause ....................................................

156

DTC Confirmation Procedure ...............................

156

Wiring Diagram — AT — SSV/A ..........................

.157

Diagnostic Procedure ...........................................

158

Component Inspection .........................................

160

DTC P0755 SHIFT SOLENOID VALVE B ..............

161

Description ...........................................................

161

CONSULT-II Reference Value ..............................

161

On Board Diagnosis Logic ...................................

161

Possible Cause ....................................................

161

DTC Confirmation Procedure ...............................

161

Wiring Diagram — AT — SSV/B ..........................

.162

Diagnostic Procedure ...........................................

163

Component Inspection .........................................

165

DTC P1705 ACCELERATOR PEDAL POSITION

 

(APP) SENSOR ......................................................

166

Description ...........................................................

166

CONSULT-II Reference Value ..............................

166

On Board Diagnosis Logic ...................................

166

Possible Cause ....................................................

166

DTC Confirmation Procedure ...............................

166

Wiring Diagram — AT — TPS ..............................

.168

Diagnostic Procedure ...........................................

169

DTC P1760 OVERRUN CLUTCH SOLENOID

 

VALVE .....................................................................

171

Description ...........................................................

171

CONSULT-II Reference Value ..............................

171

On Board Diagnosis Logic ...................................

171

Possible Cause ....................................................

171

DTC Confirmation Procedure ...............................

171

Wiring Diagram — AT — OVRCSV .....................

.172

Diagnostic Procedure ...........................................

173

Component Inspection .........................................

175

DTC VEHICLE SPEED SENSOR MTR ..................

176

Description ...........................................................

176

CONSULT-II Reference Value ..............................

176

On Board Diagnosis Logic ...................................

176

Possible Cause ....................................................

176

DTC Confirmation Procedure ...............................

176

Revision: 2006 July

AT-2

2006 X-Trail

Wiring Diagram — AT — VSSMTR .....................

. 177

Diagnostic Procedure ..........................................

 

178

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP

 

SENSOR CIRCUIT AND TCM POWER SOURCE). 180

Description ..........................................................

 

180

CONSULT-II Reference Value .............................

180

On Board Diagnosis Logic ..................................

180

Possible Cause ...................................................

 

180

DTC Confirmation Procedure ..............................

180

Wiring Diagram — AT — BA/FTS .......................

. 181

Diagnostic Procedure ..........................................

 

182

Component Inspection ........................................

 

185

MAIN POWER SUPPLY AND GROUND CIRCUIT. 186

Description ..........................................................

 

186

On Board Diagnosis Logic ..................................

186

Possible Cause ...................................................

 

186

DTC Confirmation Procedure ..............................

186

Wiring Diagram — AT — MAIN ...........................

. 187

Diagnostic Procedure ..........................................

 

188

DTC CONTROL UNIT (RAM), CONTROL UNIT

 

(ROM)

....................................................................

 

190

Description ..........................................................

 

190

On Board ..................................Diagnosis Logic

190

Possible ...................................................Cause

 

190

DTC ..............................Confirmation Procedure

190

Diagnostic ..........................................Procedure

 

190

DTC CONTROL ..........................UNIT(EEPROM)

191

Description ..........................................................

 

191

On Board ..................................Diagnosis Logic

191

Possible ...................................................Cause

 

191

DTC ..............................Confirmation Procedure

191

Diagnostic ..........................................Procedure

 

191

TROUBLE .........DIAGNOSES FOR SYMPTOMS

192

Wiring .....................Diagram — AT — NONDTC

. 192

OD OFF Indicator Lamp Does Not Come On ..... 195

Engine Cannot Be Started in “P” and “N” Position.197

In“P”Position,VehicleMovesForwardorBackward

When ......................................................Pushed

 

198

In “N” ..........................Position, Vehicle Moves

..199

Large ........................Shock “N”→ “R” Position

..201

Vehicle Does Not Creep Backward in “R” Position.202

Vehicle Does Not Creep Forward in “D”, “2” or “1”

Position ...............................................................

 

205

Vehicle ....................Cannot Be Started From D1

207

A/T Does Not Shift: D1 → D2 or Does Not Kickdown:

D4 → ..............................................................

D 2

 

210

A/T Does ..............................Not Shift: D2

D3

213

A/T Does ..............................Not Shift: D3

D4

216

A/T Does ...........................Not Perform Lock-up

218

A/T Does ................Not Hold Lock-up Condition

219

Lock- .....................................up Is Not Released

221

Engine Speed Does Not Return to Idle (Light Brak-

ing D ......................................................4 → D3 )

 

222

A/T Does Not Shift: D4

D3 , When OD OFF ... 224

A/T Does Not Shift: D3

22 , When Selector Lever

“D”→ .............................................

“2” Position

 

..225

A/T Does Not Shift: 22

11 , When Selector Lever

“2”→ .........................................

“1” on Position

 

..227

Vehicle Does Not Decelerate by Engine Brake ...

230

TCM Self-Diagnosis Does Not Activate ...............

234

SHIFT CONTROL SYSTEM ...................................

241

Control Device Removal and Installation .............

241

Adjustment of A/T Position ..................................

242

Checking of A/T Position .....................................

243

A/T SHIFT LOCK SYSTEM ...................................

244

Description ...........................................................

244

Shift Lock System Electrical Parts Location ........

244

Wiring Diagram — AT — SHIFT ..........................

. 245

Diagnostic Procedure ..........................................

246

KEY INTERLOCK CABLE .....................................

248

Components ........................................................

248

Removal ..............................................................

248

Installation ...........................................................

249

ON-VEHICLE SERVICE .........................................

250

Control Valve Assembly and Accumulators .........

250

Park/Neutral Position (PNP) Switch ....................

253

Differential Side Oil Seal Replacement ...............

255

Revolution Sensor Replacement .........................

257

AIR BREATHER HOSE .........................................

258

Removal and Installation .....................................

258

TRANSAXLE ASSEMBLY .....................................

259

Removal and Installation .....................................

259

OVERHAUL ...........................................................

262

Components ........................................................

262

Oil Channel ..........................................................

268

Locations of Adjusting Shims, Needle Bearings,

 

Thrust Washers and Snap Rings .........................

269

DISASSEMBLY ......................................................

270

Disassembly ........................................................

270

REPAIR FOR COMPONENT PARTS ....................

286

Manual Shaft .......................................................

286

Oil Pump ..............................................................

289

Control Valve Assembly .......................................

294

Control Valve Upper Body ...................................

303

Control Valve Lower Body ...................................

307

Reverse Clutch ....................................................

310

High Clutch ..........................................................

315

Forward and Overrun Clutches ...........................

321

Low & Reverse Brake ..........................................

328

Rear Internal Gear, Forward Clutch Hub and Over-

run Clutch Hub .....................................................

332

OutputShaft,IdlerGear,ReductionPinionGearand

Bearing Retainer ..................................................

336

Band Servo Piston Assembly ..............................

342

Final Drive ...........................................................

348

ASSEMBLY ............................................................

352

Assembly (1) ........................................................

352

Adjustment (1) .....................................................

353

Assembly (2) ........................................................

358

Adjustment (2) .....................................................

365

Assembly (3) ........................................................

368

SERVICE DATA AND SPECIFICATIONS (SDS) ...

375

General Specifications .........................................

375

Vehicle Speed When Shifting Gears ...................

375

Vehicle Speed When Performing and Releasing

 

Look-up ................................................................

375

Stall Revolution ....................................................

375

Revision: 2006 July

AT-3

2006 X-Trail

A

B

AT

D

E

F

G

H

I

J

K

L

M

Line Pressure ......................................................

375

Bearing Retainer ..................................................

382

Control Valves ......................................................

376

Total End Play ......................................................

382

Accumulator .........................................................

376

Reverse Clutch End Play .....................................

382

Clutch and Brakes ...............................................

377

Removal and Installation ......................................

383

Final Drive ...........................................................

379

Shift Solenoid Valves ...........................................

383

Planetary Carrier and Oil Pump ...........................

380

Solenoid Valves ...................................................

383

Input Shaft ...........................................................

380

A/T Fluid Temperature Sensor .............................

383

Reduction Pinion Gear ........................................

381

Revolution Sensor ................................................

383

Band Servo ..........................................................

381

Dropping Resistor ................................................

383

Output Shaft ........................................................

382

 

 

Revision: 2006 July

AT-4

2006 X-Trail

INDEX FOR DTC

INDEX FOR DTC

PFP:00024

Alphabetical Index

ACS008HT

NOTE:

If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT-92 .

Items

DTC

 

 

Reference page

CONSULT-II

(CONSULT-II screen terms)

GST*1

 

 

 

A/T 1ST GR FNCTN

P0731

AT-115

 

 

 

A/T 2ND GR FNCTN

P0732

AT-120

 

 

 

A/T 3RD GR FNCTN

P0733

AT-125

 

 

 

A/T 4TH GR FNCTN

P0734

AT-130

 

 

 

A/T TCC S/V FNCTN

P0744

AT-142

 

 

 

ATF TEMP SEN/CIRC

P0710

AT-100

 

 

 

BATT/FLUID TEMP SEN

AT-180

 

 

 

CAN COMM CIRCUIT

U1000

AT-92

 

 

 

CONTROL UNIT(RAM)

AT-190

 

 

 

CONTROL UNIT(ROM)

AT-190

 

 

 

CONT UNIT(EEPROM)

AT-191

 

 

 

ENGINE SPEED SIG

P0725

AT-111

 

 

 

LINE PRESSURE S/V

P0745

AT-150

 

 

 

OVERRUN CLUTCH S/V

P1760

AT-171

 

 

 

PNP SW/CIRC

P0705

AT-95

 

 

 

SHIFT SOLENOID/V A*2

P0750

AT-156

SHIFT SOLENOID/V B*2

P0755

AT-161

T/C CLUTCH SOL/V

P0740

AT-137

 

 

 

THROTTLE POSI SEN*2

P1705

AT-166

VHCL SPEED SEN-A/T*3

P0720

AT-105

VHCL SPEED SEN-MTR

AT-176

 

 

 

*1: These numbers are prescribed by SAE J2012.

*2: When the fail-safe operation occurs, the MIL illuminates.

*3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at the same time.

A

B

AT

D

E

F

G

H

I

J

K

L

M

Revision: 2006 July

AT-5

2006 X-Trail

INDEX FOR DTC

DTC No. Index

ACS008HU

NOTE:

If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT-92 .

DTC

Items

 

 

Reference page

CONSULT-II

(CONSULT-II screen terms)

GST*1

 

 

 

P0705

PNP SW/CIRC

AT-95

 

 

 

P0710

ATF TEMP SEN/CIRC

AT-100

 

 

 

P0720

VHCL SPEED SEN-A/T*3

AT-105

P0725

ENGINE SPEED SIG

AT-111

 

 

 

P0731

A/T 1ST GR FNCTN

AT-115

 

 

 

P0732

A/T 2ND GR FNCTN

AT-120

 

 

 

P0733

A/T 3RD GR FNCTN

AT-125

 

 

 

P0734

A/T 4TH GR FNCTN

AT-130

 

 

 

P0740

T/C CLUTCH SOL/V

AT-137

 

 

 

P0744

A/T TCC S/V FNCTN

AT-142

 

 

 

P0745

LINE PRESSURE S/V

AT-150

 

 

 

P0750

SHIFT SOLENOID/V A*2

AT-156

P0755

SHIFT SOLENOID/V B*2

AT-161

P1705

THROTTLE POSI SEN*2

AT-166

P1760

OVERRUN CLUTCH S/V

AT-171

 

 

 

U1000

CAN COMM CIRCUIT

AT-92

 

 

 

BATT/FLUID TEMP SEN

AT-180

 

 

 

CONTROL UNIT(RAM)

AT-190

 

 

 

CONTROL UNIT(ROM)

AT-190

 

 

 

CONT UNIT(EEPROM)

AT-191

 

 

 

VHCL SPEED SEN-MTR

AT-176

 

 

 

*1: These numbers are prescribed by SAE J2012.

*2: When the fail-safe operation occurs, the MIL illuminates.

*3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at the same time.

Revision: 2006 July

AT-6

2006 X-Trail

 

PRECAUTIONS

 

 

 

 

PRECAUTIONS

PFP:00001

A

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT

 

BELT PRE-TENSIONER”

ACS007QJ

 

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.

AT

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-

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.

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 On Board Diagnostic (OBD) System of A/T and Engine ACS007QK

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the driver of a malfunction causing emission deterioration.

CAUTION:

Be sure to turn the ignition switch OFF and disconnect battery negative cable from battery negative terminal before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will cause the MIL to light up due to an open circuit. (Be sure the connectors are free from water, grease, dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. Interference of the harness with a bracket, etc. may cause the MIL to light up due to a short circuit.

Be sure to connect the rubber tubes properly after work. A misconnected or disconnected rubber tube may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.

D

E

F

G

H

I

J

K

Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and ECM before returning the vehicle to the customer.

Precautions

Before connecting or disconnecting the TCM harness connector, turn ignition switch OFF and disconnect battery negative cable from battery negative terminal. Failure to do so may damage the TCM. Because battery voltage is applied to TCM even if ignition switch is turned off.

L

ACS007QN

M

SEF289H

Revision: 2006 July

AT-7

2006 X-Trail

PRECAUTIONS

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

Make sure that there are not any bends or breaks on TCM pin terminal, when connecting pin connectors.

Before replacing TCM, perform TCM input/output signal inspection and make sure whether TCM functions properly or not. Refer to AT-76, "TCM Terminals and Reference Value" .

AAT470A

MEF040DA

After performing each TROUBLE DIAGNOSIS, perform “DTC (Diagnostic Trouble Code) Confirmation Procedure”. The DTC should not be displayed in the “DTC Confirmation Procedure” if the repair is completed.

Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to prevent the internal parts from becoming contaminated by dirt or other foreign matter.

Disassembly should be done in a clean work area.

Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere with the operation

of the A/T.

SEF217U

 

Place disassembled parts in order for easier and proper assembly.

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

Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.

It is very important to perform functional tests whenever they are indicated.

The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs and small parts from becoming scattered or lost.

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to AT-9, "ATF COOLER SERVICE" .

After overhaul, refill the A/T with new ATF.

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque converter and ATF cooling system.

Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to “Changing A/T Fluid”,AT-16, "A/T FLUID" .

Revision: 2006 July

AT-8

2006 X-Trail

 

PRECAUTIONS

 

 

Service Notice or Precautions

ACS007QO

ATF COOLER SERVICE

 

If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced, inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning procedure. For radiator replacement, refer to CO-11, "RADIATOR" , CO-14, "RADIATOR (ALUMINUM TYPE)" .

TORQUE CONVERTER SERVICE

The torque converter should be replaced under any of the following conditions: External leaks in the hub weld area.

Converter hub is scored or damaged.

Converter pilot is broken, damaged or fits poorly into crankshaft. Steel particles are found after flushing the cooler and cooler lines. Pump is damaged or steel particles are found in the converter.

Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses have been made. (Converter clutch material may be glazed.)

Converter is contaminated with engine coolant containing antifreeze. Internal malfunction of stator roller clutch.

Heavy clutch debris due to overheating (blue converter).

Steel particles or clutch lining material found in fluid filter or on magnet indicates that lining material came from converter when no internal parts in unit are worn or damaged.

The torque converter should not be replaced if:

The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles. The threads in one or more of the converter bolt holes are damaged.

A/T malfunction did not display evidence of damaged or worn internal parts, steel particles or clutch plate lining material in unit and inside the fluid filter.

Vehicle has been exposed to high mileage (only). The exception may be where the torque converter clutch damper plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,

such as taxi, delivery or police use.

OBD-II SELF-DIAGNOSIS

A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through

the blinking pattern of the OD OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the table on AT-81, "SELF-DIAGNOSTIC RESULT MODE" for the indicator used to display each self-diag- nostic result.

The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM memories.

Always perform the procedure “HOW TO ERASE DTC” on AT-39, "HOW TO ERASE DTC" to complete the repair and avoid unnecessary blinking of the MIL.

The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when the OD OFF indicator lamp does not indicate any malfunctions.

PNP switch

A/T 1st, 2nd, 3rd, or 4th gear function

*: For details of OBD-II, refer to AT-38, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

Certain systems and components, especially those related to OBD, may use a new style slidelocking type harness connector.

For description and how to disconnect, refer to PG-46, "HARNESS CONNECTOR" .

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Revision: 2006 July

AT-9

2006 X-Trail

 

PREPARATION

 

 

PREPARATION

PFP:00100

Special Service Tools

ACS007QQ

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

KV381054S0

Removing differential side bearing outer race

(J-34286)

Removing idler gear bearing outer race

Puller

a: 250 mm (9.84 in)

 

 

b: 160 mm (6.30 in)

 

NT414

 

 

ST33400001

Installing differential side oil seal

(J-26082)

Installing oil pump housing oil seal

Drift

a: 60 mm (2.36 in) dia.

 

 

b: 47 mm (1.85 in) dia.

 

NT086

 

 

KV40100621

Installing differential side oil seal (With AWD models)

(J-25273)

a: 60 mm (2.36 in) dia.

Drift

b: 47 mm (1.85 in) dia.

 

NT086

 

 

ST2505S001

Measuring line pressure

(J-34301)

 

Oil pressure gauge set

 

1.ST25051001 (J-34301)

Oil pressure gauge

2.ST25052000 (J-34301) Hose

3.ST25053000 (J-25695-3) Joint pipe

4. ST25054000

NT097

 

(J-25695-4)

 

Adapter

 

5. ST25055000

 

(J-25695-5)

 

Adapter

 

 

 

ST27180001

Removing idler gear

(J-25726-A)

a: 100 mm (3.94 in)

Puller

b: 110 mm (4.33 in)

 

c: M8 x 1.25P

 

NT424

Revision: 2006 July

AT-10

2006 X-Trail

 

 

 

 

PREPARATION

 

 

 

 

 

 

 

 

 

Tool number

 

 

 

(Kent-Moore No.)

 

Description

 

Tool name

 

 

 

 

 

 

 

 

ST23540000

 

Removing and installing parking rod plate and

 

(J-25689-A)

 

manual plate retaining pins

 

Pin punch

 

 

a: 2.3 mm (0.091 in) dia.

 

 

 

 

 

b: 4 mm (0.16 in) dia.

 

 

 

 

NT442

 

 

 

 

 

 

ST25710000

 

Aligning groove of manual shaft and hole of

 

(J-25689-A)

 

transaxle case

 

Pin punch

 

 

a: 2 mm (0.08 in) dia.

 

 

 

 

NT410

 

 

 

 

 

 

KV32101000

 

Installing manual shaft retaining pin

 

(J-25689-A)

 

Removing and installing pinion mate shaft lock pin

 

Pin punch

 

 

 

 

 

a: 4 mm (0.16 in) dia.

 

 

 

 

 

 

 

 

 

NT410

 

 

 

 

 

 

KV31102400

 

Removing and installing clutch return springs

 

(J-34285)

 

 

a: 320 mm (12.60 in)

 

Clutch spring compressor

 

b: 174 mm (6.85 in)

 

 

 

 

NT423

 

 

 

 

 

 

KV40100630

 

Installing reduction pinion gear bearing inner race

 

(J-26092)

 

 

Installing idler gear bearing inner race

 

Drift

 

 

 

 

 

 

 

a: 67.5 mm (2.657 in) dia.

 

 

 

 

 

 

 

 

 

 

b: 44 mm (1.73 in) dia.

 

 

 

 

 

c: 38.5 mm (1.516 in) dia.

 

 

 

 

NT107

 

 

 

 

 

 

ST30720000

 

Installing idler gear bearing outer race

 

(J-25405)

 

 

a: 77 mm (3.03 in) dia.

 

Bearing installer

 

b: 55.5 mm (2.185 in) dia.

 

 

 

 

NT115

 

 

 

 

 

 

ST35321000

 

Installing output shaft bearing

(

)

 

a: 49 mm (1.93 in) dia.

 

Drift

 

 

 

b: 41 mm (1.61 in) dia.

 

 

 

 

NT073

 

 

 

 

 

 

 

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Revision: 2006 July

AT-11

2006 X-Trail

 

 

 

PREPARATION

 

 

 

 

 

 

Tool number

 

 

(Kent-Moore No.)

Description

Tool name

 

 

 

 

 

 

ST33230000

Installing differential side bearing inner race

(J-25805-01)

a: 51 mm (2.01 in) dia.

Drift

 

b: 28.5 mm (1.122 in) dia.

 

 

 

NT084

 

 

 

ST33220000

Selecting differential side bearing adjusting shim

(

)

a: 37 mm (1.46 in) dia.

Drift

 

b: 31 mm (1.22 in) dia.

 

 

 

c: 22 mm (0.87 in) dia.

 

 

 

NT085

 

 

 

ST3306S001

Removing differential side bearing inner race

(J-22888-D)

a: 38 mm (1.50 in) dia.

Differential side bearing

b: 28.5 mm (1.122 in) dia.

puller set

 

c: 130 mm (5.12 in)

1. ST33051001

d: 135 mm (5.31 in)

e: 100 mm (3.94 in)

 

(J-22888-D)

 

 

 

 

Puller

 

 

 

2. ST33061000

 

 

 

(J-8107-2)

AMT153

 

 

 

 

Adapter

 

 

 

 

 

 

ST3127S000

Checking final drive assembly turning torque

(J-25765-A)

Checking reduction pinion gear turning torque

Preload gauge

 

 

1.GG91030000 (J-25765-A) Torque wrench

2.HT62940000 ( — )

Socket adapter

 

 

NT124

3. HT62900000

(

)

Socket adapter

 

 

ST35271000

Installing idler gear

(J-26091)

a: 72 mm (2.83 in) dia.

Drift

 

b: 63 mm (2.48 in) dia.

NT115

Revision: 2006 July

AT-12

2006 X-Trail

 

 

PREPARATION

 

 

 

 

 

 

 

Tool number

 

 

(Kent-Moore No.)

Description

 

Tool name

 

 

 

 

 

KV38107700

Selecting differential side bearing adjusting shim

 

(J-39713)

 

 

Preload adapter

 

 

NT087

 

 

KV38105210

Selecting differential side bearing adjusting shim

(J-39883)

Checking fluid drive assembly turning torque

Preload adapter

 

NT075

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Revision: 2006 July

AT-13

2006 X-Trail

 

PREPARATION

 

 

 

Commercial Service Tools

 

ACS007QR

 

 

 

Tool name

 

Description

 

 

 

Power tool

 

Loosening bolts and nuts

 

PBIC0190E

 

 

 

 

Puller

 

Removing idler gear bearing inner race

 

NT077

 

 

 

 

Puller

 

Removing reduction pinion gear bearing inner

 

 

race

 

 

a: 60 mm (2.36 in) dia.

 

 

b: 35 mm (1.38 in) dia.

 

NT411

 

 

 

 

Drift

 

Installing radial needle bearing on bearing

 

 

retainer

 

 

a: 36 mm (1.42 in) dia.

 

NT083

 

 

 

 

Drift

 

Installing manual shaft oil seal

 

 

a: 22 mm (0.87 in) dia.

 

NT083

 

 

 

 

Drift

 

Removing radial needle bearing from bearing

 

 

retainer

 

 

a: 33.5 mm (1.319 in) dia.

 

NT083

 

 

 

 

Revision: 2006 July

AT-14

2006 X-Trail

 

PREPARATION

 

 

 

 

 

 

 

 

 

 

 

 

Tool name

 

Description

 

A

 

 

 

 

Drift

 

Installing differential side bearing outer race

 

 

 

 

(RH side)

 

 

 

 

a: 75 mm (2.95 in) dia.

 

B

 

 

 

 

 

 

 

 

 

 

NT083

 

 

AT

 

 

 

 

 

 

 

 

 

Drift

 

Installing differential side bearing outer race

 

 

 

 

(LH side)

 

D

 

 

a: 100 mm (3.94 in) dia.

 

 

 

 

 

E

 

NT083

 

 

 

 

 

 

 

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Revision: 2006 July

AT-15

2006 X-Trail

A/T FLUID

A/T FLUID

Checking A/T Fluid

1.Warm up engine.

2.Check for A/T fluid leakage.

3.Before driving, A/T fluid level can be checked at A/T fluid temperatures of 30 to 50° C (86 to 122° F) using “COLD” range on A/ T fluid level gauge.

a.Park vehicle on level surface and set parking brake.

b.Start engine and move selector lever through each gear position. Leave selector lever in “P” position.

c.Check A/T fluid level with engine idling.

d.Remove A/T fluid level gauge and note reading. If level is at low side of either range, and A/T fluid to the A/T fluid charging pipe.

CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.

e.Re-insert A/T fluid level gauge into A/T fluid charging pipe as far as it will go.

CAUTION:

Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using a stopper attached.

f.Remove A/T fluid level gauge and note reading. If reading is at low side of range, add ATF to the A/T fluid charging pipe.

CAUTION:

Do not overfill.

PFP:KLE40

ACS007QS

SCIA3451E

SMA051D

4.Drive vehicle for approximately 5 minutes in urban areas.

5.Recheck A/T fluid level at A/T fluid temperatures of 50 to 80° C (122 to 176° F) using “HOT” range on A/T fluid level gauge.

CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.

Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using a stopper attached.

6.Check A/T fluid condition.

If ATF is very dark or smells burned, checking operation of A/ T. Flush cooling system after repair of A/T.

If ATF contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using cleaning solvent and compressed air after repair of A/T. Refer to CO-11, "RADIATOR" , CO-14, "RADIATOR (ALUMINUM TYPE)" .

7.Install the removed A/T fluid level gauge in the A/T fluid charging pipe.

CAUTION:

SAT638A

Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using a stopper attached.

Revision: 2006 July

AT-16

2006 X-Trail

A/T FLUID

Changing A/T Fluid

1.Warm up ATF.

2.Stop engine.

3.Drain ATF from drain hole and refill with new ATF. Always refill same volume with drained fluid.

CAUTION:

Do not reuse drain plug gasket.

Fluid grade:

NISSAN Automatic Transmission Fluid (ATF),

DEXRONTM III/MERCONTM , or equivalent ATF. Refer to MA-10, "RECOMMENDED FLUIDS AND LUBRICANTS" .

Fluid capacity (With torque converter):

Approx. 8.5 (9 US qt, 7-1/2 lmp qt)

Drain plug

:34 N·m (3.5 kg-m, 25 ft-lb)

ACS007QT

SMA027D

4.Run engine at idle speed for 5 minutes.

5.Check A/T fluid level and condition. Refer to AT-16, "Checking A/T Fluid" . If ATF is still dirty, repeat steps 2 through 5.

A/T Fluid Cooler Cleaning

ACS008HQ

Whenever an A/T is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the radiator must be inspected and cleaned.

Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can contaminate the newly serviced A/T or, in severe cases, can block or restrict the flow of ATF. In either case, malfunction of the newly serviced A/T may result.

Debris, if present, may build up as ATF enters the cooler inlet. It will be necessary to back flush the cooler through the cooler outlet in order to flush out any built up debris.

A/T FLUID COOLER CLEANING PROCEDURE

1.Position an oil pan under the A/T inlet and outlet cooler hoses.

2.Identify the inlet and outlet fluid cooler hoses.

3.Disconnect the A/T fluid cooler inlet and outlet rubber hoses from the steel cooler tubes or bypass valve.

NOTE:

Replace the cooler hoses if rubber material from the hose remains on the tube fitting.

4.Allow any ATF that remains in the cooler hoses to drain into the oil pan.

SCIA5628E

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Revision: 2006 July

AT-17

2006 X-Trail

A/T FLUID

5.Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler outlet hose.

CAUTION:

Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner.

Spray Transmission Cooler Cleaner only with adequate ventilation.

Avoid contact with eyes and skin.

Do not breath vapors or spray mist.

SCIA5629E

6.Hold the hose and can as high as possible and spray Transmis-

sion Cooler Cleaner in a continuous stream into the cooler outlet hose until ATF flows out of the cooler inlet hose for 5 seconds.

7.Insert the tip of an air gun into the end of the cooler outlet hose.

8.Wrap a shop rag around the air gun tip and of the cooler outlet hose.

SCIA5630E

9.Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through the cooler outlet hose for 10 seconds to force out any remaining ATF.

10.Repeat steps 5 through 9 three additional times.

11.Position an oil pan under the banjo bolts that connect the A/T fluid cooler steel lines to the A/T.

12.Remove the banjo bolts.

13.Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.

14.Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through each steel line from the cooler side back toward the A/T for 10 seconds to force out any remaining ATF.

15.Ensure all debris is removed from the steel cooler lines.

16.Ensure all debris is removed from the banjo bolts and fittings.

17.Perform AT-18, "A/T FLUID COOLER DIAGNOSIS PROCEDURE" .

A/T FLUID COOLER DIAGNOSIS PROCEDURE

NOTE:

Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.

1.Position an oil pan under the A/T inlet and outlet cooler hoses.

2.Clean the exterior and tip of the cooler inlet hose.

3.Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler outlet hose.

CAUTION:

Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner.

Spray Transmission Cooler Cleaner only with adequate ventilation.

Avoid contact with eyes and skin.

Do not breath vapors or spray mist.

SCIA5629E

Revision: 2006 July

AT-18

2006 X-Trail

A/T FLUID

4.Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous

stream into the cooler outlet hose until ATF flows out of the cooler inlet hose for 5 seconds.

A

5. Tie a common white, basket-type coffee filter to the end of the

 

 

 

 

 

cooler inlet hose.

 

 

 

 

B

 

 

 

 

 

 

 

AT

 

 

 

 

 

 

 

D

SCIA5631E

6.Insert the tip of an air gun into the end of the cooler outlet hose.

7.Wrap a shop rag around the air gun tip and end of cooler outlet hose.

8.Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through the cooler outlet hose to force any remaining ATF into the coffee filter.

9.Remove the coffee filter from the end of the cooler inlet hose.

10.Perform AT-19, "A/T FLUID COOLER INSPECTION PROCEDURE" .

A/T FLUID COOLER INSPECTION PROCEDURE

1.Inspect the coffee filter for debris.

a.If small metal debris less than 1mm (0.040 in) in size or metal powder is found in the coffee filter, this is normal. If normal debris is found, the A/T fluid cooler/radiator can be re-used and the procedure is ended.

SCIA5632E

SCIA2967E

b.If one or more pieces of debris are found that are over 1mm (0.040 in) in size and/or peeled clutch facing material is found in the coffee filter, the A/T fluid cooler is not serviceable. The A/T fluid cooler/radiator must be replaced and the inspection procedure is ended. Refer to CO-11, "RADIATOR" .

SCIA5659E

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.

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Revision: 2006 July

AT-19

2006 X-Trail

Nissan XTrail T30 2006 User Manual

A/T CONTROL SYSTEM

A/T CONTROL SYSTEM

Cross-sectional View

PFP:31036

ACS007JH

SCIA4112E

1.

Band servo piston assembly

2.

Reverse clutch drum

3.

Converter housing

4.

Oil pump

5.

Brake band

6.

Reverse clutch

7.

High clutch

8.

Front planetary gear

9.

Low one-way clutch

10.

Rear planetary gear

11.

Forward clutch

12.

Overrun clutch

13.

Low & reverse brake

14.

Output gear

15.

Idler gear

16.

Forward one-way clutch

17.

Reduction pinion gear

18.

Final gear

19.

Differential case

20.

Input shaft

21.

Torque converter

22.

Side cover

23.

Transaxle case

 

 

Revision: 2006 July

AT-20

2006 X-Trail

A/T CONTROL SYSTEM

Shift Mechanism

ACS007JI

CONSTRUCTION

SAT998I

1.

Torque converter

2.

Oil pump

3.

Input shaft

4.

Brake band

5.

Reverse clutch

6.

High clutch

7.

Front sun gear

8.

Front pinion gear

9.

Front internal gear

10.

Front planetary carrier

11.

Rear sun gear

12.

Rear pinion gear

13.

Rear internal gear

14.

Rear planetary carrier

15.

Forward clutch

16.

Forward one-way clutch

17.

Overrun clutch

18.

Low one-way clutch

19.

Low & reverse brake

20.

Parking pawl

21.

Parking gear

22.

Output shaft

23.

Idler gear

24.

Output gear

FUNCTION OF CLUTCH AND BRAKE

 

Clutch and brake components

Abbr.

Function

 

 

 

 

5

Reverse clutch

R/C

To transmit input power to front sun gear 7 .

 

 

 

 

6

High clutch

H/C

To transmit input power to front planetary carrier 10 .

 

 

 

 

15

Forward clutch

F/C

To connect front planetary carrier 10 with forward one-way clutch 16 .

 

 

 

 

17

Overrun clutch

O/C

To connect front planetary carrier 10 with rear internal gear 13 .

 

 

 

 

4

Brake band

B/B

To lock front sun gear 7 .

 

 

 

 

16

Forward one-way clutch

F/O.C

When forward clutch 15 is engaged, to stop rear internal gear 13 from rotating

in opposite direction against engine revolution.

 

 

 

 

 

 

 

18

Low one-way clutch

L/O.C

To stop front planetary carrier 10 from rotating in opposite direction against

engine revolution.

 

 

 

 

 

 

 

19

Low & reverse brake

L & R/B

To lock front planetary carrier 10 .

 

 

 

 

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Revision: 2006 July

AT-21

2006 X-Trail

A/T CONTROL SYSTEM

CLUTCH AND BAND CHART

 

 

 

 

 

 

 

 

Band servo

 

 

 

 

 

 

 

 

Shift posi-

R/C

H/C

F/C

O/C

 

 

 

 

 

F/O.C

L/O.C

L&R/B

Lock-

 

 

 

2nd

 

3rd

 

4th

Remarks

tion

 

5

6

15

17

 

 

16

18

19

up

 

 

releas

 

 

 

 

 

 

 

 

apply

 

 

apply

 

 

 

 

 

 

 

 

 

 

 

e

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POSITION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REVERSE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POSITION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NEUTRAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POSITION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Automatic

D*4

 

1st

 

 

 

*1D

 

 

 

 

 

B

B

 

 

shift

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd

 

 

 

*1A

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd

 

 

 

*1A

*2C

 

C

 

 

B

 

 

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4th

 

 

C

 

*3C

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st

 

 

 

 

 

 

 

 

 

B

B

 

 

Automatic

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd

 

 

 

 

 

 

 

 

 

B

 

 

 

shift

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

 

 

3rd

 

 

 

 

*2C

 

C

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st

 

 

 

 

 

 

 

 

 

B

B

 

 

Locks (held

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

stationary)

 

2nd

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in 1st speed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd

 

 

 

 

*2C

 

C

 

 

B

 

 

 

1

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1: Operates when OD OFF. (OD OFF indicator lamp is on.)

*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does notcontract because oil pressure area on the “release” side is greater than that on the “apply” side.

*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.

*4: A/T will not shift to 4th when OD OFF. (OD OFF indicator lamp is on.)

: Operates.

A: Operates when throttle opening is less than 3/16, activating engine brake.

B: Operates during “progressive” acceleration.

C: Operates but does not affect power transmission.

D: Operates when throttle opening is less than 3/16, but does not affect engine brake.

Revision: 2006 July

AT-22

2006 X-Trail

A/T CONTROL SYSTEM

POWER TRANSMISSION

 

“N” and “P” Positions

A

“N” position

Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.

“P” position

B

 

Similar to the “N” position, the clutches do not operate. The parking pawl engages with the parking gear to

 

mechanically hold the output shaft so that the power train is locked.

 

 

 

 

AT

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Revision: 2006 July

AT-23

2006 X-Trail

 

A/T CONTROL SYSTEM

 

 

“11 ” Position

 

 

 

Forward clutch

As overrun clutch engages, rear internal gear is locked by the operation of low and

Forward one-way clutch

reverse brake.

This is different from that of D1 and 21 .

Overrun clutch

 

Low & reverse brake

 

 

 

Engine brake

Overrun clutch always engages, therefore engine brake can be obtained when deceler-

 

ating.

 

 

SCIA1816E

Revision: 2006 July

AT-24

2006 X-Trail

 

A/T CONTROL SYSTEM

 

 

“D1 ” and “21 ” Positions

 

 

 

Forward one-way clutch

Rear internal gear is locked to rotate counterclockwise because of the functioning of

Forward clutch

these three clutches.

 

Low one-way clutch

 

 

 

Overrun clutch

D1 : OD OFF (OD OFF indicator lamp is on) and throttle opening is less than 3/16

21 : Always engaged

engagement conditions

At D1 and 21 positions, engine brake is not activated due to free turning of low one-

(Engine brake)

way clutch.

 

 

 

SAT377J

A

B

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Revision: 2006 July

AT-25

2006 X-Trail

 

A/T CONTROL SYSTEM

 

 

“D2 ”, “22 ” and “12 ” Positions

 

 

Forward clutch

Rear sun gear drives rear planetary carrier and combined front internal gear. Front internal gear now

Forward one-way

rotates around front sun gear accompanying front planetary carrier.

As front planetary carrier transfers the power to rear internal gear through forward clutch and forward one-

clutch

way clutch, this rotation of rear internal gear increases the speed of rear planetary carrier compared with

Brake band

that of the 1st speed.

 

 

 

Overrun clutch

D2 : OD OFF (OD OFF indicator lamp is on) and throttle opening is less than 3/16

engagement conditions

22 and 12 : Always engaged

 

 

SAT378J

Revision: 2006 July

AT-26

2006 X-Trail

 

A/T CONTROL SYSTEM

 

 

“D3 ”, “23 ” and “13 ” Positions

 

 

High clutch

Input power is transmitted to front planetary carrier through high clutch. And front planetary carrier is con-

Forward clutch

nected to rear internal gear by operation of forward clutch and forward one-way clutch.

This rear internal gear rotation and another input (the rear sun gear) accompany rear planetary carrier to

Forward one-way

turn at the same speed.

clutch

 

 

 

Overrun clutch

D3 : OD OFF (OD OFF indicator lamp is on) and throttle opening is less than 3/16

engagement conditions

23 and 13 : Always engaged

 

 

SCIA7229E

A

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Revision: 2006 July

AT-27

2006 X-Trail

 

A/T CONTROL SYSTEM

 

 

“D4 ” (OD) Position

 

 

 

High clutch

Input power is transmitted to front carrier through high clutch.

Brake band

This front carrier turns around the sun gear which is fixed by brake band and makes

front internal gear (output) turn faster.

 

Forward clutch (Does not affect power transmission)

Engine brake

At D4 position, there is no one-way clutch in the power transaxle line and engine brake can be obtained when decelerating.

SAT380J

Revision: 2006 July

AT-28

2006 X-Trail

A/T CONTROL SYSTEM

“R” Position

Reverse clutch

Front planetary carrier is stationary because of the operation of low and reverse brake.

Low & reverse brake

Input power is transmitted to front sun gear through reverse clutch, which drives front

internal gear in the opposite direction.

 

 

 

Engine brake

As there is no one-way clutch in the power transaxle line, engine brake can be

obtained when decelerating.

 

 

 

SAT381J

A

B

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Revision: 2006 July

AT-29

2006 X-Trail

A/T CONTROL SYSTEM

TCM Function

ACS007JJ

The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.

CONTROL SYSTEM OUTLINE

The automatic transmission senses vehicle operating conditions through various sensors or signals. It always controls the optimum shift position and reduces shifting and lock-up shocks.

SWITCHES & SENSORS

 

TCM

 

ACTUATORS

 

 

 

 

 

PNP switch

 

Shift control

 

 

Accelerator pedal position signal

 

Line pressure control

 

Shift solenoid valve A

Closed throttle position signal

 

Lock-up control

 

 

 

Shift solenoid valve B

Wide open throttle position signal

 

Overrun clutch control

 

 

 

Overrun clutch solenoid valve

Engine speed signal

 

Timing control

 

 

 

Torque converter clutch solenoid

A/T fluid temperature sensor

 

Fail-safe control

 

 

 

valve

Revolution sensor

 

Self-diagnosis

 

 

 

Line pressure solenoid valve

Vehicle speed sensor

 

CONSULT-II communication line

 

 

 

OD OFF indicator lamp

Overdrive control switch signal

 

control

 

 

 

 

Stop lamp switch signal

 

Duet-EU control

 

 

 

 

 

 

 

CONTROL SYSTEM DIAGRAM

SCIA7349E

Revision: 2006 July

AT-30

2006 X-Trail

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