Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 1998-2002 Approved Nissan Frontier 2002 AT
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AUTOMATIC TRANSMISSION GI
SECTION AT MA
EM
LC
EC
CONTENTS FE
RL4R01A Parking Components Inspection................................61
CL
Governor Valve ..........................................................61
PRECAUTIONS ...............................................................5
Throttle Wire Adjustment ...........................................61 MT
Supplemental Restraint System (SRS) AIR
Park/Neutral Position (PNP) Switch Adjustment .......62
BAG and SEAT BELT PRE-TENSIONER...............5
Control Cable Adjustment..........................................63
Precautions ..................................................................5
REMOVAL AND INSTALLATION .................................64
Service Notice or Precautions .....................................6
Removal.....................................................................64
Wiring Diagrams and Trouble Diagnosis.....................6
Installation..................................................................66
PREPARATION ...............................................................7
OVERHAUL ...................................................................68
TF
Special Service Tools ..................................................7
Components...............................................................68
OVERALL SYSTEM ........................................................9
Oil Channel ................................................................70 PD
Circuit Diagram ............................................................9
Locations of Needle Bearings, Thrust Washers
Wiring Diagram ..........................................................10
and Snap Rings .........................................................71
Cross-sectional View .................................................13
Hydraulic Control Circuits ..........................................14
DISASSEMBLY..............................................................72 AX
REPAIR FOR COMPONENT PARTS ...........................83
Shift Mechanism ........................................................15
Oil Pump ....................................................................83
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........27 SU
Control Valve Assembly.............................................87
A/T Fluid Check .........................................................27
Control Valve Upper Body .........................................92
Stall Test ....................................................................27
Control Valve Lower Body .........................................96
Line Pressure Test.....................................................30 BR
Governor Valve Assembly .........................................97
Road Test...................................................................32
Parking Gear..............................................................98
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION ...............................................................34
Reverse Clutch ..........................................................98 ST
High Clutch ..............................................................102
Symptom Chart..........................................................34
Forward and Overrun Clutches ...............................104
DTC P1775 TORQUE CONVERTER CLUTCH RS
Low & Reverse Brake..............................................108
SOLENOID VALVE (CIRCUIT)......................................43
Forward Clutch Drum Assembly.............................. 111
Diagnostic Procedure ................................................43
Rear Internal Gear and Forward Clutch Hub ..........113
TROUBLE DIAGNOSES................................................46
Band Servo Piston Assembly ..................................115
BT
Component Inspection...............................................46
Parking Pawl Components ......................................119
Electrical Component Inspection ...............................52
ASSEMBLY..................................................................121 HA
A/T SHIFT LOCK SYSTEM...........................................53
Assembly (1)............................................................121
Description .................................................................53
Adjustment ...............................................................129
Shift Lock System Electrical Parts Location..............53
Assembly (2)............................................................132 SC
Removal and Installation ...........................................53
SERVICE DATA AND SPECIFICATIONS (SDS) .......138
Wiring Diagram ..........................................................55
General Specifications.............................................138
Diagnostic Procedure ................................................56
Shift Schedule..........................................................138 EL
ON-VEHICLE SERVICE ................................................60
Stall Revolution........................................................138
Control Valve Assembly and Accumulators...............60
Line Pressure...........................................................138 IDX
Rear Oil Seal Replacement.......................................60
Governor Pressure ..................................................139
CONTENTS (Cont'd)
Return Springs.........................................................139 TROUBLE DIAGNOSIS FOR POWER SUPPLY........244
Accumulator O-ring..................................................140 Wiring Diagram - AT - MAIN....................................244
Clutch and Brakes ...................................................140 Diagnostic Procedure ..............................................245
Oil Pump and Low One-way Clutch ........................142 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Total End Play..........................................................142 SWITCH .......................................................................247
Parking Gear............................................................142 Description ...............................................................247
Reverse Clutch Drum End Play ..............................143 Wiring Diagram - AT - PNP/SW...............................249
Removal and Installation .........................................143 Diagnostic Procedure ..............................................250
Component Inspection.............................................251
RE4R01A DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT .......................................................................253
TROUBLE DIAGNOSIS - INDEX ................................144 Description ...............................................................253
Alphabetical & P No. Index for DTC .......................144 Wiring Diagram - AT - FTS ......................................255
PRECAUTIONS ...........................................................146 Diagnostic Procedure ..............................................256
Supplemental Restraint System (SRS) AIR Component Inspection.............................................258
BAG and SEAT BELT PRE-TENSIONER...........146 DTC P0720 VEHICLE SPEED SENSOR.A/T
Precautions for On Board Diagnostic (OBD) (REVOLUTION SENSOR) ...........................................259
System of A/T and Engine.......................................146 Description ...............................................................259
Precautions ..............................................................147 Wiring Diagram - AT - VSSA/T ................................261
Service Notice or Precautions .................................148 Diagnostic Procedure ..............................................262
Wiring Diagrams and Trouble Diagnosis.................149 Component Inspection.............................................263
PREPARATION ...........................................................150 DTC P0725 ENGINE SPEED SIGNAL .......................264
Special Service Tools ..............................................150 Description ...............................................................264
OVERALL SYSTEM ....................................................152 Wiring Diagram - AT - ENGSS ................................265
A/T Electrical Parts Location ...................................152 Diagnostic Procedure ..............................................266
Circuit Diagram ........................................................153 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR
Cross-sectional View ...............................................154 POSITION ....................................................................268
Hydraulic Control Circuit..........................................155 Description ...............................................................268
Shift Mechanism ......................................................156 Wiring Diagram - AT - 1ST ......................................271
Control System ........................................................166 Diagnostic Procedure ..............................................272
Control Mechanism..................................................167 Component Inspection.............................................273
Control Valve ...........................................................172 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR
ON BOARD DIAGNOSTIC SYSTEM POSITION ....................................................................274
DESCRIPTION .............................................................174 Description ...............................................................274
Introduction ..............................................................174 Wiring Diagram - AT - 2ND......................................277
OBD-II Function for A/T System..............................174 Diagnostic Procedure ..............................................278
One or Two Trip Detection Logic of OBD-II ............174 Component Inspection.............................................278
OBD-II Diagnostic Trouble Code (DTC) ..................174 DTC P0733 IMPROPER SHIFTING TO 3RD GEAR
Malfunction Indicator Lamp (MIL)............................178 POSITION ....................................................................280
CONSULT-II .............................................................178 Description ...............................................................280
Diagnostic Procedure Without CONSULT-II............187 Wiring Diagram - AT - 3RD......................................283
TROUBLE DIAGNOSIS - INTRODUCTION................196 Diagnostic Procedure ..............................................284
Introduction ..............................................................196 Component Inspection.............................................285
Work Flow................................................................200 DTC P0734 IMPROPER SHIFTING TO 4TH GEAR
TROUBLE DIAGNOSIS - BASIC INSPECTION .........203 POSITION ....................................................................286
A/T Fluid Check .......................................................203 Description ...............................................................286
Stall Test ..................................................................203 Wiring Diagram - AT - 4TH ......................................290
Line Pressure Test...................................................206 Diagnostic Procedure ..............................................291
Road Test.................................................................208 Component Inspection.............................................294
Symptom Chart........................................................226 DTC P0740 TORQUE CONVERTER CLUTCH ..........295
TROUBLE DIAGNOSIS - GENERAL Description ...............................................................295
DESCRIPTION .............................................................240 Wiring Diagram - AT - TCV......................................297
TCM Terminals and Reference Value......................240
AT-2
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................298 Diagnostic Procedure ..............................................353 GI
Component Inspection.............................................299 DTC CONTROL UNIT (EEP ROM) .............................354
DTC P0744 IMPROPER LOCK-UP OPERATION ......300 Description ...............................................................354
Description ...............................................................300 Diagnostic Procedure ..............................................355 MA
Wiring Diagram - AT - TCCSIG ...............................303 TROUBLE DIAGNOSES FOR SYMPTOMS ...............356
Diagnostic Procedure ..............................................304 Wiring Diagram - AT - NONDTC .............................356
Component Inspection.............................................307 1. O/D OFF Indicator Lamp Does Not Come On....359
EM
DTC P0745 LINE PRESSURE SOLENOID VALVE ...308 2. Engine Cannot Be Started In P and N Position..361
Description ...............................................................308 3. In P Position, Vehicle Moves Forward Or LC
Wiring Diagram - AT - LPSV....................................310 Backward When Pushed .........................................362
Diagnostic Procedure ..............................................311 4. In N Position, Vehicle Moves ..............................363
Component Inspection.............................................312 5. Large Shock. N -> R Position .............................365 EC
DTC P0750 SHIFT SOLENOID VALVE A ..................313 6. Vehicle Does Not Creep Backward In R
Description ...............................................................313 Position ....................................................................367
Wiring Diagram - AT - SSV/A ..................................315 7. Vehicle Does Not Creep Forward In D, 2 Or 1 FE
Diagnostic Procedure ..............................................316 Position ....................................................................370
Component Inspection.............................................317 8. Vehicle Cannot Be Started From D1 ...................373 CL
DTC P0755 SHIFT SOLENOID VALVE B ..................318 9. A/T Does Not Shift: D1 -> D2 Or Does Not
Description ...............................................................318 Kickdown: D4 -> D2..................................................376
Wiring Diagram - AT - SSV/B ..................................320 10. A/T Does Not Shift: D2 -> D3.............................379 MT
Diagnostic Procedure ..............................................321 11. A/T Does Not Shift: D3 -> D4 .............................382
Component Inspection.............................................322 12. A/T Does Not Perform Lock-up .........................385
DTC P1705 THROTTLE POSITION SENSOR ...........323 13. A/T Does Not Hold Lock-up Condition ..............387
Description ...............................................................323 14. Lock-up Is Not Released...................................389
Wiring Diagram - AT - TPS......................................326 15. Engine Speed Does Not Return To Idle (Light
TF
Diagnostic Procedure ..............................................327 Braking D4 -> D3).....................................................390
Component Inspection.............................................331 16. Vehicle Does Not Start From D1 .......................392
DTC P1760 OVERRUN CLUTCH SOLENOID 17. A/T Does Not Shift: D4 -> D3, When PD
VALVE..........................................................................332 Overdrive Control Switch ON -> OFF .....................393
Description ...............................................................332 18. A/T Does Not Shift: D3 -> 22, When Selector
Wiring Diagram - AT - OVRCSV..............................334 Lever D -> 2 Position ..............................................394 AX
Diagnostic Procedure ..............................................335 19. A/T Does Not Shift: 22 -> 11, When Selector
Component Inspection.............................................336 Lever 2 -> 1 Position ...............................................395
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP 20. Vehicle Does Not Decelerate By Engine
SU
SENSOR CIRCUIT AND TCM POWER SOURCE) ....337 Brake........................................................................396
Description ...............................................................337 21. TCM Self-diagnosis Does Not Activate (PNP, BR
Wiring Diagram - AT - BA/FTS ................................339 Overdrive Control and Throttle Position Switches
Diagnostic Procedure ..............................................340 Circuit Checks) ........................................................396
Component Inspection.............................................342 A/T SHIFT LOCK SYSTEM.........................................404 ST
DTC VEHICLE SPEED SENSOR.MTR .......................343 Description ...............................................................404
Description ...............................................................343 Wiring Diagram - SHIFT -........................................405
Wiring Diagram - AT - VSSMTR..............................345 Diagnostic Procedure ..............................................406 RS
Diagnostic Procedure ..............................................346 Component Check ...................................................408
DTC TURBINE REVOLUTION SENSOR (VG33ER KEY INTERLOCK CABLE ..........................................409
BT
ONLY) ..........................................................................347 Components.............................................................409
Description ...............................................................347 Removal...................................................................409
Wiring Diagram - AT - TRSA/T ................................349 Installation................................................................410 HA
Diagnostic Procedure ..............................................350 ON-VEHICLE SERVICE ..............................................411
Component Inspection.............................................351 Control Valve Assembly and Accumulators.............411
DTC CONTROL UNIT (RAM), CONTROL UNIT Revolution Sensor Replacement .............................412 SC
(ROM)...........................................................................352 Turbine Revolution Sensor Replacement
Description ...............................................................352 (VG33ER only).........................................................412
EL
IDX
AT-3
CONTENTS (Cont'd)
Rear Oil Seal Replacement.....................................412 Band Servo Piston Assembly ..................................470
Parking Components Inspection..............................413 Parking Pawl Components ......................................474
Park/Neutral Position (PNP) Switch Adjustment .....413 ASSEMBLY..................................................................476
Manual Control Linkage Adjustment........................414 Assembly (1)............................................................476
REMOVAL AND INSTALLATION ...............................415 Adjustment ...............................................................484
Removal...................................................................415 Assembly (2)............................................................486
Installation................................................................417 SERVICE DATA AND SPECIFICATIONS (SDS) .......493
OVERHAUL .................................................................419 General Specifications.............................................493
Components.............................................................419 Shift Schedule..........................................................493
Oil Channel ..............................................................421 Stall Revolution........................................................493
Locations of Needle Bearings, Thrust Washers Line Pressure...........................................................494
and Snap Rings .......................................................422 Return Springs.........................................................494
DISASSEMBLY............................................................423 Accumulator O-ring..................................................495
REPAIR FOR COMPONENT PARTS .........................434 Clutches and Brakes ...............................................495
Oil Pump ..................................................................434 Oil Pump and Low One-way Clutch ........................498
Control Valve Assembly...........................................438 Total End Play..........................................................498
Control Valve Upper Body .......................................444 Reverse Clutch Drum End Play ..............................498
Control Valve Lower Body .......................................449 Removal and Installation .........................................498
Reverse Clutch ........................................................451 Shift Solenoid Valves...............................................498
High Clutch ..............................................................455 Solenoid Valves .......................................................498
Forward and Overrun Clutches ...............................457 A/T Fluid Temperature Sensor.................................499
Low & Reverse Brake..............................................461 Turbine Revolution Sensor ......................................499
Forward Clutch Drum Assembly..............................465 Revolution Sensor ...................................................499
Rear Internal Gear and Forward Clutch Hub ..........467 Dropping Resistor ....................................................499
AT-4
PRECAUTIONS RL4R01A
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
NEAT0400
GI
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The Supplemental Restraint System consists of air bag modules (located in the center of the steering wheel MA
and in the instrument panel on the passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warn-
ing lamp, wiring harness, and spiral cable.
The vehicle (except Crew Cab model) is equipped with a passenger air bag deactivation switch. Because no EM
rear seat exists where a rear-facing child restraint can be placed, the switch is designed to turn off the pas-
senger air bag so that a rear-facing child restraint can be used in the front passenger seat. The switch is
located in the center of the instrument panel, near the ashtray. When the switch is turned to the ON position, LC
the passenger air bag is enabled and could inflate in a frontal collision. When the switch is turned to the OFF
position, the passenger air bag is disabled and will not inflate in a frontal collision. A passenger air bag OFF
indicator on the instrument panel lights up when the passenger air bag is switched OFF. The driver air bag EC
always remains enabled and is not affected by the passenger air bag deactivation switch.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING: FE
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