
AT-3
D
E
F
G
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J
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A
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AT
Revision: November 2006 2006 Altima
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