Jatco RE4F04B User manual

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RE4F04B
TROUBLE DIAGNOSIS - INDEX ................................ 8
Alphabetical & P No. Index for DTC ......................... 8
PRECAUTIONS ........................................................ 10
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 10
PrecautionsforOnBoardDiagnostic(OBD)System
of A/T and Engine .................................................. 10
Precautions ............................................................ 10
Service Notice or Precautions ................................ 12
PREPARATION ......................................................... 14
Special Service Tools ............................................. 14
Commercial Service Tools ...................................... 17
A/T FLUID ................................................................. 18
Changing A/T Fluid ................................................ 18
Checking A/T Fluid ................................................. 18
A/T Fluid Cooler Cleaning ...................................... 19
OVERALL SYSTEM ................................................. 23
A/T Electrical Parts Location .................................. 23
Circuit Diagram ...................................................... 24
Cross-sectional View .............................................. 25
Hydraulic Control Circuit ........................................ 26
Shift Mechanism ..................................................... 27
Control System ....................................................... 36
Control Mechanism ................................................ 38
Control Valve .......................................................... 42
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION .......................................................................... 44
Introduction ............................................................ 44
OBD-II Function for A/T System ............................. 44
One or Two Trip Detection Logic of OBD-II ............ 44
OBD-II Diagnostic Trouble Code (DTC) ................. 44
Malfunction Indicator Lamp (MIL) ........................... 48
CONSULT-II Function (TCM) ................................. 48
Diagnostic Procedure Without CONSULT-II ........... 59
TROUBLE DIAGNOSIS - INTRODUCTION ............. 64
Introduction ............................................................ 64
Work Flow .............................................................. 68
TROUBLE DIAGNOSIS - BASIC INSPECTION .......71
A/T Fluid Check ......................................................71
A/T Fluid Cooler Cleaning ......................................71
Stall Test .................................................................74
Line Pressure Test ..................................................77
Road Test ...............................................................78
TROUBLE DIAGNOSIS - GENERAL DESCRIP-
TION ..........................................................................93
Symptom Chart .......................................................93
TCM Terminals and Reference Value ...................103
CAN Communication ............................................106
TROUBLE DIAGNOSIS FOR POWER SUPPLY ....107
Wiring Diagram — AT — MAIN ............................107
Diagnostic Procedure ...........................................108
DTC P0705 PARK/NEUTRAL POSITION SWITCH.110
Description ............................................................110
On Board Diagnosis Logic ....................................110
Possible Cause .....................................................110
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................110
Wiring Diagram — AT — PNP/SW .......................112
Diagnostic Procedure ...........................................113
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................116
Description ............................................................116
On Board Diagnosis Logic ....................................116
Possible Cause .....................................................116
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................116
Wiring Diagram — AT — FTS ..............................118
Diagnostic Procedure ...........................................120
DTC P0720 VEHICLE SPEED SENSOR·A/T (REV-
OLUTION SENSOR) ...............................................122
Description ............................................................122
On Board Diagnosis Logic ....................................122
Possible Cause .....................................................122
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................122
Wiring Diagram — AT — VSSA/T ........................124
Diagnostic Procedure ...........................................125

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Revision: November 2006 2006 Altima
DTC P0725 ENGINE SPEED SIGNAL ...................127
Description ............................................................127
On Board Diagnosis Logic ....................................127
Possible Cause .....................................................127
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................127
Wiring Diagram — AT — ENGSS .........................128
Diagnostic Procedure ...........................................129
DTC P0731 A/T 1ST GEAR FUNCTION .................131
Description ............................................................131
On Board Diagnosis Logic ....................................131
Possible Cause .....................................................131
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................131
Wiring Diagram — AT — 1STSIG .........................133
Diagnostic Procedure ...........................................134
DTC P0732 A/T 2ND GEAR FUNCTION ................136
Description ............................................................136
On Board Diagnosis Logic ....................................136
Possible Cause .....................................................136
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................136
Wiring Diagram — AT — 2NDSIG ........................138
Diagnostic Procedure ...........................................139
DTC P0733 A/T 3RD GEAR FUNCTION ................141
Description ............................................................141
On Board Diagnosis Logic ....................................141
Possible Cause .....................................................141
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................141
Wiring Diagram — AT — 3RDSIG ........................143
Diagnostic Procedure ...........................................144
DTC P0734 A/T 4TH GEAR FUNCTION ................146
Description ............................................................146
On Board Diagnosis Logic ....................................146
Possible Cause .....................................................146
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................146
Wiring Diagram — AT — 4THSIG ........................148
Diagnostic Procedure ...........................................149
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................153
Description ............................................................153
On Board Diagnosis Logic ....................................153
Possible Cause .....................................................153
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................153
Wiring Diagram — AT — TCV ..............................155
Diagnostic Procedure ...........................................156
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP).158
Description ............................................................158
On Board Diagnosis Logic ....................................158
Possible Cause .....................................................158
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................158
Wiring Diagram — AT — TCCSIG ........................160
Diagnostic Procedure ...........................................161
DTC P0745 LINE PRESSURE SOLENOID VALVE.166
Description ............................................................166
On Board Diagnosis Logic ....................................166
Possible Cause .....................................................166
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................166
Wiring Diagram — AT — LPSV ............................168
Diagnostic Procedure ............................................169
DTC P0750 SHIFT SOLENOID VALVE A ...............172
Description ............................................................172
On Board Diagnosis Logic ....................................172
Possible Cause .....................................................172
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................172
Wiring Diagram — AT — SSV/A ...........................174
Diagnostic Procedure ............................................175
DTC P0755 SHIFT SOLENOID VALVE B ...............177
Description ............................................................177
On Board Diagnosis Logic ....................................177
Possible Cause .....................................................177
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................177
Wiring Diagram — AT — SSV/B ...........................179
Diagnostic Procedure ............................................180
DTC P1705 THROTTLE POSITION SENSOR
[ACCELERATOR PEDAL POSITION (APP) SEN-
SOR] ........................................................................182
Description ............................................................182
On Board Diagnosis Logic ....................................182
Possible Cause .....................................................182
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................182
Diagnostic Procedure ............................................183
DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE ......................................................................185
Description ............................................................185
On Board Diagnosis Logic ....................................185
Possible Cause .....................................................185
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................185
Wiring Diagram — AT — OVRCSV ......................187
Diagnostic Procedure ............................................188
DTC U1000 CAN COMMUNICATION LINE ............190
Description ............................................................190
On Board Diagnosis Logic ....................................190
Possible Cause .....................................................190
DTC Confirmation Procedure ................................190
Wiring Diagram — AT — CAN ..............................192
Diagnostic Procedure ............................................193
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE).194
Description ............................................................194
On Board Diagnosis Logic ....................................194
Possible Cause .....................................................194
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ...................................................................194
Wiring Diagram — AT — BA/FTS .........................196
Diagnostic Procedure ............................................197
DTC VEHICLE SPEED SENSOR MTR ...................201
Description ............................................................201
On Board Diagnosis Logic ....................................201

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Possible Cause .................................................... 201
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure .................................................................. 201
Wiring Diagram — AT — VSSMTR ...................... 203
Diagnostic Procedure ........................................... 204
DTC TURBINE REVOLUTION SENSOR ............... 205
Description ........................................................... 205
Wiring Diagram — AT — TRSA/T ........................ 206
Diagnostic Procedure ........................................... 207
Component Inspection ......................................... 208
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM) ..................................................................... 209
Description ........................................................... 209
On Board Diagnosis Logic ................................... 209
Possible Cause .................................................... 209
Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure .................................................................. 209
Diagnostic Procedure ........................................... 210
DTC CONTROL UNIT (EEP ROM) ..........................211
Description ............................................................211
Diagnostic Procedure ........................................... 212
TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 213
Wiring Diagram — AT — NONDTC ...................... 213
1. A/T Check (Position) Indicator Lamp Does Not
Come On .............................................................. 217
2. Engine Cannot Be Started In P and N Position. 219
3. In P Position, Vehicle Moves Forward or Back-
ward When Pushed .............................................. 220
4. In N Position, Vehicle Moves ............................ 221
5. Large Shock. N →R Position .......................... 223
6.VehicleDoesNotCreep BackwardInRPosition. 225
7. Vehicle Does Not Creep Forward in D, 3, 2 or 1
Position ................................................................ 228
8. Vehicle Cannot Be Started From D1................. 231
9. A/T Does Not Shift: D1→D2or Does Not Kick-
down: D4→D2..................................................... 234
10. A/T Does Not Shift: D2→D3......................... 237
11. A/T Does Not Shift: D3→D4.......................... 240
12. A/T Does Not Perform Lock-up ...................... 243
13. A/T Does Not Hold Lock-up Condition ........... 245
14. Lock-up Is Not Released ................................ 247
15. Engine Speed Does Not Return To Idle (Light
Braking D4→D3) ................................................ 248
16. Vehicle Does Not Start From D1..................... 250
17.A/TDoesNotShift:D4→33,WhenA/TSelector
Lever D →3 ......................................................... 251
18. A/T Does Not Shift: 33→22, When Selector
Lever 3 →2 Position ............................................ 252
19. A/T Does Not Shift: 22→11, When Selector
Lever 2 →1 Position ............................................ 253
20. Vehicle Does Not Decelerate By Engine Brake. 254
21.TCMSelf-diagnosisDoesNotActivate(PNP&
3 Position Switches Circuit Checks), and Throttle
PositionSensor[AcceleratorPedalPosition(APP)
Sensor] Circuit Check .......................................... 254
A/T SHIFT LOCK SYSTEM .................................... 260
Description ........................................................... 260
Shift Lock System Electrical Parts Location ......... 260
Wiring Diagram — SHIFT — ................................ 261
Shift Lock Control Unit Reference Values ............262
Component Inspection ..........................................263
SHIFT CONTROL SYSTEM ....................................265
Control Device ......................................................265
Control Cable ........................................................266
ON-VEHICLE SERVICE ..........................................267
Control Valve Assembly and Accumulators ..........267
Revolution Sensor Replacement ..........................269
Turbine Revolution Sensor Replacement .............269
Park/Neutral Position (PNP) Switch Adjustment ..269
Control Cable Adjustment .....................................270
Differential Side Oil Seal Replacement ................270
AIR BREATHER HOSE ..........................................272
Air Breather Hose - Air Duct Side .........................272
Air Breather Hose - Transaxle Side ......................273
REMOVAL AND INSTALLATION ...........................275
Removal ...............................................................275
Inspection .............................................................276
Installation ............................................................277
OVERHAUL ............................................................278
Components .........................................................278
Oil Channel ...........................................................281
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................282
DISASSEMBLY .......................................................283
Disassembly .........................................................283
REPAIR FOR COMPONENT PARTS .....................299
Manual Shaft ........................................................299
Oil Pump ...............................................................302
Control Valve Assembly ........................................306
Control Valve Upper Body ....................................315
Control Valve Lower Body ....................................319
Reverse Clutch .....................................................321
High Clutch ...........................................................324
Forward and Overrun Clutches ............................328
Low & Reverse Brake ...........................................334
Rear Internal Gear, ForwardClutch Hub and Over-
run Clutch Hub ......................................................337
OutputShaft,IdlerGear,ReductionPinionGearand
Bearing Retainer ...................................................341
Band Servo Piston Assembly ...............................346
Final Drive ............................................................351
ASSEMBLY .............................................................356
Assembly (1) .........................................................356
Adjustment (1) ......................................................357
Assembly (2) .........................................................362
Adjustment (2) ......................................................369
Assembly (3) .........................................................371
SERVICE DATA AND SPECIFICATIONS (SDS) ....378
General Specifications ..........................................378
Shift Schedule ......................................................378
Stall Revolution .....................................................378
Line Pressure .......................................................379
Control Valves ......................................................379
Accumulator ..........................................................379
Clutch and Brakes ................................................380
Final Drive ............................................................382
Planetary Carrier and Oil Pump ............................382
Input Shaft ............................................................383

AT-4
Revision: November 2006 2006 Altima
Reduction Pinion Gear .........................................383
Band Servo ...........................................................384
Output Shaft .........................................................384
Bearing Retainer ...................................................385
Total End Play .......................................................385
Reverse Clutch End Play ......................................385
Removal and Installation ......................................385
Shift Solenoid Valves ............................................385
Solenoid Valves ....................................................385
A/T Fluid Temperature Sensor ..............................386
Revolution Sensor ................................................386
Dropping Resistor .................................................386
TurbineRevolutionSensor(PowerTrainRevolution
Sensor) .................................................................386
RE5F22A
INDEX FOR DTC .....................................................387
Alphabetical Index ................................................387
DTC No. Index ......................................................388
PRECAUTIONS .......................................................389
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................389
PrecautionsforOnBoardDiagnostic(OBD)System
of A/T and Engine .................................................389
PrecautionsforA/TAssemblyorTCMReplacement.390
Precautions ...........................................................391
Service Notice or Precautions ..............................393
PREPARATION .......................................................394
Special Service Tools ...........................................394
Commercial Service Tools ....................................397
A/T FLUID ...............................................................398
Changing A/T Fluid ...............................................398
Checking A/T Fluid ...............................................398
A/T Fluid Cooler Cleaning ....................................399
A/T CONTROL SYSTEM ........................................403
Cross-Sectional View ............................................403
Shift Mechanism ...................................................404
TCM Function .......................................................421
Input/Output Signal of TCM ..................................422
CAN Communication ............................................422
Line Pressure Control ...........................................423
Shift Control ..........................................................423
Lock-Up Control ....................................................425
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..........427
Introduction ...........................................................427
OBD-II Function for A/T System ...........................427
One or Two Trip Detection Logic of OBD-II ..........427
OBD-II Diagnostic Trouble Code (DTC) ...............427
Malfunction Indicator Lamp (MIL) .........................430
TROUBLE DIAGNOSIS ..........................................431
DTC Inspection Priority Chart ...............................431
Fail-Safe ...............................................................431
How To Perform Trouble Diagnosis For Quick and
Accurate Repair ....................................................434
A/T Electrical Parts Location .................................439
Circuit Diagram .....................................................440
Inspections Before Trouble Diagnosis ..................441
Check Before Engine is Started ............................445
Check at Idle .........................................................445
Cruise Test - Part 1 ...............................................447
Cruise Test - Part 2 ...............................................448
Cruise Test - Part 3 ...............................................449
Shift Schedule .......................................................450
Symptom Chart .....................................................451
TCM Input/Output Signal Reference Values .........459
CONSULT-II Function (TCM) ................................462
Diagnostic Procedure Without CONSULT-II .........468
DTC U1000 CAN COMMUNICATION LINE ............471
Description ............................................................471
On Board Diagnosis Logic ....................................471
Possible Cause .....................................................471
DTC Confirmation Procedure ................................471
Wiring Diagram — AT — CAN ..............................472
Diagnostic Procedure ............................................473
DTC P0500 VEHICLE SPEED SENSOR MTR .......474
Description ............................................................474
On Board Diagnosis Logic ....................................474
Possible Cause .....................................................474
DTC Confirmation Procedure ................................474
Diagnostic Procedure ............................................475
DTC P0613 TCM PROCESSOR .............................476
Description ............................................................476
On Board Diagnosis Logic ....................................476
Possible Cause .....................................................476
DTC Confirmation Procedure ................................476
Diagnostic Procedure ............................................477
DTC P0705 PARK/NEUTRAL POSITION SWITCH.478
Description ............................................................478
On Board Diagnosis Logic ....................................478
Possible Cause .....................................................478
DTC Confirmation Procedure ................................478
Wiring Diagram — AT — PNP/SW .......................479
Diagnostic Procedure ............................................480
Component Inspection ..........................................482
DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................483
Description ............................................................483
On Board Diagnosis Logic ....................................483
Possible Cause .....................................................483
DTC Confirmation Procedure ................................483
Wiring Diagram — AT — FTS ...............................484
Diagnostic Procedure ............................................485
Component Inspection ..........................................487
DTCP0711FLUIDTEMPERATURESENSORPER-
FORMANCE ............................................................488
Description ............................................................488
On Board Diagnosis Logic ....................................488
Possible Cause .....................................................488
DTC Confirmation Procedure ................................488
Wiring Diagram — AT — FTSP ............................489
Diagnostic Procedure ............................................490
Component Inspection ..........................................492
DTCP0717TURBINEREVOLUTIONSENSORCIR-
CUIT .........................................................................493
Description ............................................................493
On Board Diagnosis Logic ....................................493

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Possible Cause .................................................... 493
DTC Confirmation Procedure ............................... 493
Wiring Diagram — AT — TRSC ........................... 494
Diagnostic Procedure ........................................... 495
Component Inspection ......................................... 496
DTC P0722 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) CIRCUIT ............................... 497
Description ........................................................... 497
On Board Diagnosis Logic ................................... 497
Possible Cause .................................................... 497
DTC Confirmation Procedure ............................... 497
Wiring Diagram — AT — VSSATC ....................... 498
Diagnostic Procedure ........................................... 499
Component Inspection ......................................... 500
DTCP0726ENGINESPEEDINPUTCIRCUITPER-
FORMANCE ........................................................... 501
Description ........................................................... 501
On Board Diagnosis Logic ................................... 501
Possible Cause .................................................... 501
DTC Confirmation Procedure ............................... 501
Diagnostic Procedure ........................................... 501
DTC P0731 A/T 1ST GEAR FUNCTION ................ 503
Description ........................................................... 503
On Board Diagnosis Logic ................................... 503
Possible Cause .................................................... 503
DTC Confirmation Procedure ............................... 503
Wiring Diagram — AT — 1STSIG ........................ 504
Diagnostic Procedure ........................................... 505
DTC P0732 A/T 2ND GEAR FUNCTION ................ 506
Description ........................................................... 506
On Board Diagnosis Logic ................................... 506
Possible Cause .................................................... 506
DTC Confirmation Procedure ............................... 506
Wiring Diagram — AT — 2NDSIG ........................ 508
Diagnostic Procedure ........................................... 510
DTC P0733 A/T 3RD GEAR FUNCTION ................ 512
Description ........................................................... 512
On Board Diagnosis Logic ................................... 512
Possible Cause .................................................... 512
DTC Confirmation Procedure ............................... 512
Wiring Diagram — AT — 3RDSIG ........................ 514
Diagnostic Procedure ........................................... 516
DTC P0734 A/T 4TH GEAR FUNCTION ................ 518
Description ........................................................... 518
On Board Diagnosis Logic ................................... 518
Possible Cause .................................................... 518
DTC Confirmation Procedure ............................... 518
Wiring Diagram — AT — 4THSIG ........................ 520
Diagnostic Procedure ........................................... 521
DTC P0735 A/T 5TH GEAR FUNCTION ................ 523
Description ........................................................... 523
On Board Diagnosis Logic ................................... 523
Possible Cause .................................................... 523
DTC Confirmation Procedure ............................... 523
Wiring Diagram — AT — 5THSIG ........................ 525
Diagnostic Procedure ........................................... 527
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 529
Description ........................................................... 529
On Board Diagnosis Logic ................................... 529
Possible Cause .....................................................529
DTC Confirmation Procedure ...............................529
Wiring Diagram — AT — TCCSIG ........................530
Diagnostic Procedure ...........................................531
DTC P0745 PRESSURE CONTROL SOLENOID
VALVE A (LINE PRESSURE) .................................532
Description ............................................................532
On Board Diagnosis Logic ....................................532
Possible Cause .....................................................532
DTC Confirmation Procedure ...............................532
Wiring Diagram — AT — PC/A .............................533
Diagnostic Procedure ...........................................534
Component Inspection ..........................................536
DTC P0750 SHIFT SOLENOID VALVE A ...............537
Description ............................................................537
On Board Diagnosis Logic ....................................537
Possible Cause .....................................................537
DTC Confirmation Procedure ...............................537
Wiring Diagram — AT — SSV/A ...........................538
Diagnostic Procedure ...........................................539
Component Inspection ..........................................541
DTC P0755 SHIFT SOLENOID VALVE B ...............542
Description ............................................................542
On Board Diagnosis Logic ....................................542
Possible Cause .....................................................542
DTC Confirmation Procedure ...............................542
Wiring Diagram — AT — SSV/B ...........................543
Diagnostic Procedure ...........................................544
Component Inspection ..........................................546
DTC P0760 SHIFT SOLENOID VALVE C ...............547
Description ............................................................547
On Board Diagnosis Logic ....................................547
Possible Cause .....................................................547
DTC Confirmation Procedure ...............................547
Wiring Diagram — AT — SSV/C ..........................548
Diagnostic Procedure ...........................................549
Component Inspection ..........................................551
DTCP0762SHIFTSOLENOIDVALVECSTUCKON.552
Description ............................................................552
On Board Diagnosis Logic ....................................552
Possible Cause .....................................................552
DTC Confirmation Procedure ...............................552
Wiring Diagram — AT — SSV/CS ........................553
Diagnostic Procedure ...........................................554
Component Inspection ..........................................556
DTC P0765 SHIFT SOLENOID VALVE D ...............557
Description ............................................................557
On Board Diagnosis Logic ....................................557
Possible Cause .....................................................557
DTC Confirmation Procedure ...............................557
Wiring Diagram — AT — SSV/D ..........................558
Diagnostic Procedure ...........................................559
Component Inspection ..........................................561
DTC P0770 SHIFT SOLENOID VALVE E ...............562
Description ............................................................562
On Board Diagnosis Logic ....................................562
Possible Cause .....................................................562
DTC Confirmation Procedure ...............................562
Wiring Diagram — AT — SSV/E ...........................563

AT-6
Revision: November 2006 2006 Altima
Diagnostic Procedure ...........................................564
Component Inspection ..........................................566
DTC P0775 PRESSURE CONTROL SOLENOID
VALVE B (SHIFT PRESSURE) ...............................567
Description ............................................................567
On Board Diagnosis Logic ....................................567
Possible Cause .....................................................567
DTC Confirmation Procedure ...............................567
Wiring Diagram — AT — PC/B .............................568
Diagnostic Procedure ...........................................569
Component Inspection ..........................................571
DTC P0780 SHIFT ...................................................572
Description ............................................................572
On Board Diagnosis Logic ....................................572
Possible Cause .....................................................572
DTC Confirmation Procedure ...............................572
Wiring Diagram — AT — SFTFNC .......................573
Diagnostic Procedure ...........................................575
DTC P0795 PRESSURE CONTROL SOLENOID
VALVE C (TCC AND SHIFT PRESSURE) ..............576
Description ............................................................576
On Board Diagnosis Logic ....................................576
Possible Cause .....................................................576
DTC Confirmation Procedure ...............................576
Wiring Diagram — AT — PC/C .............................577
Diagnostic Procedure ...........................................578
Component Inspection ..........................................580
DTC P0797 PRESSURE CONTROL SOLENOID
VALVE C STUCK ON ..............................................581
Description ............................................................581
On Board Diagnosis Logic ....................................581
Possible Cause .....................................................581
DTC Confirmation Procedure ...............................581
Wiring Diagram — AT — PC/CS ..........................582
Diagnostic Procedure ...........................................583
Component Inspection ..........................................585
DTC P0826 MANUAL MODE SWITCH CIRCUIT ...586
Description ............................................................586
CONSULT-IIReferenceValueinDataMonitorMode
.586
On Board Diagnosis Logic ....................................586
Possible Cause .....................................................586
DTC Confirmation Procedure ...............................586
Wiring Diagram — AT — MMSW ..........................587
Diagnostic Procedure ...........................................589
Component Inspection ..........................................591
Position Indicator ..................................................591
DTC P0882 TCM POWER INPUT SIGNAL ............592
Description ............................................................592
On Board Diagnosis Logic ....................................592
Possible Cause .....................................................592
DTC Confirmation Procedure ...............................592
Wiring Diagram — AT — PWR/IN ........................593
Diagnostic Procedure ...........................................595
Component Inspection ..........................................596
DTC P1726 ELECTRIC THROTTLE CONTROL
SYSTEM ..................................................................597
Description ............................................................597
TROUBLE DIAGNOSIS FOR SYMPTOMS ............598
A/T CHECK Indicator Lamp does not come on ....598
Engine Cannot Be Started In “P” or “N” Position ...600
In “P” Position, Vehicle Moves When Pushed .......600
In “N” Position, Vehicle Moves ..............................601
Large Shock (“N” to “D” Position) ..........................602
Vehicle Does Not Creep Backward In “R” Position.603
Vehicle Does Not Creep Forward In “D” Position ..604
Vehicle Cannot Be Started From D1.....................605
A/T Does Not Shift: D1→D2................................605
A/T Does Not Shift: D2→D3................................606
A/T Does Not Shift: D3→D4................................607
A/T Does Not Shift: D4→D5................................608
A/T Does Not Perform Lock-up .............................609
A/T Does Not Hold Lock-up Condition ..................610
Lock-up Is Not Released .......................................611
Cannot Be Changed to Manual Mode ...................612
A/T Does Not Shift: 5th gear →4th gear ..............613
A/T Does Not Shift: 4th gear →3rd gear ..............614
A/T Does Not Shift: 3rd gear →2nd gear .............614
A/T Does Not Shift: 2nd gear →1st gear .............615
Vehicle Does Not Decelerate By Engine Brake ....616
TCM Self-diagnosis Does Not Activate .................617
SHIFT CONTROL SYSTEM ....................................619
Control Device ......................................................619
Control Cable ........................................................620
A/T SHIFT LOCK SYSTEM .....................................621
Description ............................................................621
Shift Lock System Electrical Parts Location ..........621
Wiring Diagram — AT — SHIFT ...........................622
Shift Lock Control Unit Reference Values .............623
Component Inspection ..........................................624
ON-VEHICLE SERVICE ..........................................626
Revolution Sensor Replacement ..........................626
Turbine Revolution Sensor Replacement .............626
Park/Neutral Position (PNP) Switch Adjustment ...626
ATF Cooler ............................................................627
ATF Cooler Valve ..................................................627
Control Cable Adjustment .....................................628
Side cover .............................................................629
Control Valve Assembly ........................................629
Terminal Cord Assembly .......................................629
REMOVAL AND INSTALLATION ............................631
Removal ................................................................631
Inspection After Removal ......................................632
Installation .............................................................632
OVERHAUL .............................................................634
Components ..........................................................634
Locations of Needle Bearings, Bearing Races and
Thrust Washers .....................................................642
DISASSEMBLY .......................................................643
Disassembly ..........................................................643
REPAIR FOR COMPONENT PARTS ......................662
Oil Pump, 2nd Coast Brake & 2nd Brake ..............662
One-WayClutch Outer Race Sub Assembly&2nd
Coast Brake Hub & One-Way Clutch No.1 ...........668
Transaxle Case Cover & B5 Brake .......................670
Differential Gear Assembly ...................................675

AT-7
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ASSEMBLY ............................................................. 678
Assembly (1) ........................................................ 678
Adjustment ........................................................... 685
Assembly (2) ........................................................ 686
SERVICE DATA AND SPECIFICATIONS (SDS) .... 702
General Specifications ......................................... 702
Shift Schedule ...................................................... 702
Stall Speed ........................................................... 703
Line Pressure ....................................................... 704
Time Lag ...............................................................704
Shift Solenoid Valves ............................................704
Solenoid Valves ....................................................704
Clutch and Brakes ................................................705
Final Drive ............................................................707
A/T Fluid Temperature Sensor ..............................708
Turbine Revolution Sensor ...................................708
Revolution Sensor ................................................708

AT-8
[RE4F04B]
TROUBLE DIAGNOSIS - INDEX
Revision: November 2006 2006 Altima
TROUBLE DIAGNOSIS - INDEX PFP:00000
Alphabetical & P No. Index for DTC ECS0095J
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT-190, "DTC U1000 CAN COMMUNICATION LINE"
ALPHABETICAL INDEX FOR DTC
*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.
Items
(CONSULT-II screen terms)
DTC Reference page
CONSULT-II
GST*1
A/T 1ST GR FNCTN P0731 AT-131
A/T 2ND GR FNCTN P0732 AT-136
A/T 3RD GR FNCTN P0733 AT-141
A/T 4TH GR FNCTN P0734 AT-146
A/T TCC S/V FNCTN P0744 AT-158
ATF TEMP SEN/CIRC P0710 AT-116
ENGINE SPEED SIG P0725 AT-127
L/PRESS SOL/CIRC P0745 AT-166
O/R CLTCH SOL/CIRC P1760 AT-185
PNP SW/CIRC P0705 AT-110
SFT SOL A/CIRC*2 P0750 AT-172
SFT SOL B/CIRC*2 P0755 AT-177
TCC SOLENOID/CIRC P0740 AT-153
THROTTLE POSI SEN*2 P1705 AT-182
VEH SPD SEN/CIR AT*3 P0720 AT-122
CAN COMM CIRCUIT U1000 AT-190

TROUBLE DIAGNOSIS - INDEX
AT-9
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P NO. INDEX FOR DTC
*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.
DTC Items
(CONSULT-II screen terms) Reference page
CONSULT-II
GST*1
P0705 PNP SW/CIRC AT-110
P0710 ATF TEMP SEN/CIRC AT-116
P0720 VEH SPD SEN/CIR AT*3 AT-122
P0725 ENGINE SPEED SIG AT-127
P0731 A/T 1ST GR FNCTN AT-131
P0732 A/T 2ND GR FNCTN AT-136
P0733 A/T 3RD GR FNCTN AT-141
P0734 A/T 4TH GR FNCTN AT-146
P0740 TCC SOLENOID/CIRC AT-153
P0744 A/T TCC S/V FNCTN AT-158
P0745 L/PRESS SOL/CIRC AT-166
P0750 SFT SOL A/CIRC*2 AT-172
P0755 SFT SOL B/CIRC*2 AT-177
P1705 THROTTLE POSI SEN*2 AT-182
P1760 O/R CLTCH SOL/CIRC AT-185
U1000 CAN COMM CIRCUIT AT-190

AT-10
[RE4F04B]
PRECAUTIONS
Revision: November 2006 2006 Altima
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS0095K
The Supplemental Restraint System such as “AIR BAG”and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
●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 per-
sonal 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 ECS0095L
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 the negative battery 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 connector is 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 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.
●Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM or
ECM before returning the vehicle to the customer.
Precautions ECS0095M
●Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the TCM.
Because battery voltage is applied to TCM even if ignition
switch is turned off.
SEF289H

PRECAUTIONS
AT-11
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●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-37, "INPUT/OUTPUT SIGNAL OF TCM".
●After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC CONFIRMA-
TION PROCEDURE” if the repair is completed.
●Before proceeding with disassembly, thoroughly clean the out-
side 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 transaxle.
●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 transaxle 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.
●Replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to AT-12,
"ATF COOLER SERVICE".
●After overhaul, refill the transaxle 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 when changing A/T fluid. Refer to AT-398, "Changing A/T Fluid".
AAT470A
MEF040DA
SAT964I

AT-12
[RE4F04B]
PRECAUTIONS
Revision: November 2006 2006 Altima
Service Notice or Precautions ECS0095N
FAIL-SAFE
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of 1, 2 or D. The cus-
tomer may complain of sluggish or poor acceleration.
When the ignition key is turned ON following Fail-Safe operation, A/T check (position) indicator lamp blinks for
about 8 seconds. [For “TCM Self-diagnostic Procedure (No Tools)”, refer to AT-60, "TCM SELF-DIAGNOSTIC
PROCEDURE (NO TOOLS)".]
The blinking of the A/T check (position) indicator lamp for about 8 seconds will appear only once and be
cleared. The customer may resume normal driving conditions.
Always follow the “Work Flow”(Refer to AT-68, "Work Flow").
The SELF-DIAGNOSIS results will be as follows:
●The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
●During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
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 failure 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 when no internal parts in unit are
worn or damaged —indicates that lining material came from converter.
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.
●Transaxle failure 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 dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using clean-
ing solvent and compressed air after repair of A/T. Refer to CO-13, "RADIATOR".
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 A/T check (position) indicator or the malfunction indicator lamp (MIL). Refer to
the table on AT-49 for the indicator used to display each self-diagnostic result.
●The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure “HOW TO ERASE DTC” on AT-46 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 A/T check (position) indicator lamp does not indicate any malfunctions.
–park/neutral position (PNP) switch
–A/T 1st, 2nd, 3rd, or 4th gear function
–A/T TCC S/V function (lock-up).

PRECAUTIONS
AT-13
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*: For details of OBD-II, refer to EC-53, "ON BOARD DIAGNOSTIC (OBD) SYSTEM".
●Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector.
For description and how to disconnect, refer to GI-24, "How to Check Terminal".

AT-14
[RE4F04B]
PREPARATION
Revision: November 2006 2006 Altima
PREPARATION PFP:00002
Special Service Tools ECS0095P
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV381054S0
(J-34286)
Puller
●Removing differential side oil seals
●Removing differential side bearing outer
race
●Removing idler gear bearing outer race
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST33400001
(J-26082)
Drift
●Installing differential side oil seal
(RH side)
●Installing oil seal on oil pump housing
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
(J-34301-C)
Oil pressure gauge set
1 (J-34301-1)
Oil pressure gauge
2 (J-34301-2)
Hoses
3 (J-34298)
Adapter
4 (J-34282-2)
Adapter
5 (790-301-1230-A)
60°Adapter
6 (J-34301-15)
Square socket
Measuring line pressure
ST27180001
(J-25726-A)
Puller
Removing idler gear
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 x 1.25P
ST23540000
(J-25689-A)
Pin punch
Removing and installing parking rod plate and
manual plate pins
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
ST25710000
(J-25689-A)
Pin punch
Aligning groove of manual shaft and hole of
transaxle case
a: 2 mm (0.08 in) dia.
NT414
NT086
AAT896
NT424
NT442
NT410

PREPARATION
AT-15
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KV32101000
(J-25689-A)
Pin punch
●Removing and installing manual shaft re-
taining pin
●Removing and installing pinion mate shaft
lock pin
a: 4 mm (0.16 in) dia.
KV31102400
(J-34285 and J-34285-87)
Clutch spring compressor
●Removing and installing clutch return
springs
●Installing low and reverse brake piston
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
KV40100630
(J-26092)
Drift
●Installing reduction gear bearing inner race
●Installing idler gear bearing inner race
a: 67.5 mm (2.657 in) dia.
b: 44 mm (1.73 in) dia.
c: 38.5 mm (1.516 in) dia.
ST30720000
(J-25405 and J-34331)
Bearing installer
Installing idler gear bearing outer race
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ST35321000
(—)
Drift
Installing output shaft bearing
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia.
(J-34291-A)
Shim setting gauge set ●Selecting oil pump cover bearing race and
oil pump thrust washer
●Selecting side gear thrust washer
ST33230000
(J-25805-01)
Drift
Installing differential side bearing inner race
(RH side)
a: 51 mm (2.01 in) dia.
b: 28.5 mm (1.122 in) dia.
Tool number
(Kent-Moore No.)
Tool name
Description
NT410
NT423
NT107
NT115
NT073
NT101
NT084

AT-16
[RE4F04B]
PREPARATION
Revision: November 2006 2006 Altima
(J-34290)
Shim selecting tool set Selecting differential side bearing adjusting shim
ST3306S001
(J-22888-D)
Differential side bearing puller set
1 ST33051001
(J-22888-D)
Puller
2 ST33061000
(J-8107-2)
Adapter
Removing differential side bearing inner race
a: 38 mm (1.50 in) dia.
b: 28.5 mm (1.122 in) dia.
c: 130 mm (5.12 in)
d: 135 mm (5.31 in)
e: 100 mm (3.94 in)
ST3127S000
(J-25765-A)
Preload gauge
1 GG91030000
(J-25765-A)
Torque wrench
2 HT62940000
(—)
Socket adapter
3 HT62900000
(—)
Socket adapter
Checking differential side bearing preload
ST35271000
(J-26091)
Drift
Installing idler gear
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
(J-39713)
Preload adapter ●Selecting differential side bearing adjusting
shim
●Checking differential side bearing preload
Tool number
(Kent-Moore No.)
Tool name
Description
NT080
AMT153
NT124
NT115
NT087

PREPARATION
AT-17
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Commercial Service Tools ECS0095Q
Tool name Description
Puller ●Removing idler gear bearing inner race
●Removing and installing band servo piston
snap ring
Puller Removing reduction gear bearing inner race
a: 60 mm (2.36 in) dia.
b: 35 mm (1.38 in) dia.
Drift Installing needle bearing on bearing retainer
a: 36 mm (1.42 in) dia.
Drift Removing needle bearing from bearing retain-
er
a: 33.5 mm (1.319 in) dia.
Drift Installing differential side bearing outer race
(RH side)
a: 75 mm (2.95 in) dia.
Power tool ●Removing transaxle assembly
●Removing transaxle oil pan
●Removing transaxle case and cover
NT077
NT411
NT083
NT083
NT083
PBIC0190E

AT-18
[RE4F04B]
A/T FLUID
Revision: November 2006 2006 Altima
A/T FLUID PFP:KLE40
Changing A/T Fluid ECS00EMQ
1. Run the engine to warm up the transaxle until the fluid is at full operating temperature “HOT”.
2. Stop the engine.
3. Remove the engine undercover.
4. Drain the A/T fluid by removing the drain plug. Reinstall the drain
plug to the specified torque using a new drain washer.
5. Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the tran-
saxle with the same volume amount that was drained out.
CAUTION:
Do not overfill the transaxle.
6. Run the engine at idle speed for five minutes.
7. Check fluid level and condition. Refer to AT-398, "Checking A/T Fluid". If the fluid is still contaminated,
repeat step 2 through 5.
Checking A/T Fluid ECS00EMR
1. Warm up the engine.
2. Check for any transaxle fluid leaks.
3. Before driving, the fluid level can be checked at fluid tempera-
ture using the “COLD”range on the A/T fluid level gauge.
a. Park the vehicle on a level surface and set parking brake.
b. Start the engine and move the transaxle selector lever through each gear position. Leave the selector
lever in the “P”park position.
Temperature range
COLD : 30°– 50°C (86°– 122°F)
HOT : 50°– 80°C (122°– 176°F)
Drain plug : Refer to AT-275, "REMOVAL AND
INSTALLATION".
WLIA0009E
Fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants".
Temperature range
COLD : 30°– 50°C (86°– 122°F)
HOT : 50°– 80°C (122°– 176°F)
WLIA0013E

A/T FLUID
AT-19
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Revision: November 2006 2006 Altima
c. Check the fluid level with the engine idling.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge.
d. Remove the A/T fluid level gauge and wipe it clean with a lint-free paper.
e. Re-insert the A/T fluid level gauge into the charging pipe as far as it will go.
f. Remove the A/T fluid level gauge and note the reading. If the reading is at or below the low side of the
range, add the necessary specified A/T fluid through the A/T fluid charging pipe and then re-insert the A/T
fluid level gauge.
CAUTION:
●Do not overfill the transaxle.
●Firmly secure the A/T fluid level gauge into the A/T fluid charging pipe using the attached stop-
per, this will provide an accurate reading on the gauge, and will keep the gauge in position while
driving.
4. Drive the vehicle for approximately 5 minutes at moderate speeds.
5. Re-check the fluid level at fluid temperatures using the “HOT”
range on the A/T fluid level gauge.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge, and will keep the gauge
in position while driving.
6. Check the fluid for the following conditions:
●If the fluid is very dark or smells burned, refer to AT-71,
"TROUBLE DIAGNOSIS - BASIC INSPECTION", for check-
ing the operation of the transaxle. Flush the A/T fluid cooling
system after completing any necessary repairs of the tran-
saxle. Refer to AT-19, "A/T Fluid Cooler Cleaning".
●If the fluid contains frictional material (from the clutches or
bands), clean the A/T fluid cooler after completing any neces-
sary repairs to the transaxle. Refer to AT-19, "A/T Fluid Cooler
Cleaning".
A/T Fluid Cooler Cleaning ECS00EMS
Whenever an automatic transaxle 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 con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid 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 automatic transaxle's inlet and outlet cooler hoses.
WLIA0008E
Temperature range
COLD : 30°– 50°C (86°– 122°F)
HOT : 50°– 80°C (122°– 176°F) WLIA0013E
SMA853B

AT-20
[RE4F04B]
A/T FLUID
Revision: November 2006 2006 Altima
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the 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 A/T fluid that remains in the cooler hoses to drain into
the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
●Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
●Spray cooler cleaner only with adequate ventilation.
●Avoid contact with eyes and skin.
●Do not breath vapors or spray mist.
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 fluid 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.
9. Blow compressed air regulated to 5 - 9 kg/cm2(70 - 130 psi) through the cooler outlet hose for 10 sec-
onds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transaxle 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 transaxle for 10 seconds to force out any remaining fluid.
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-400, "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 automatic transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
SCIA5628E
SCIA5629E
SCIA5630E