Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Xterra 2000-2004 Approved Nissan Xterra 2002 AT
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AUTOMATIC TRANSMISSION GI
SECTION AT MA
EM
LC
EC
CONTENTS FE
TROUBLE DIAGNOSIS - INDEX ....................................4 TROUBLE DIAGNOSIS - GENERAL
CL
Alphabetical & P No. Index for DTC ...........................4 DESCRIPTION ...............................................................84
PRECAUTIONS ...............................................................6 Symptom Chart..........................................................84 MT
Supplemental Restraint System (SRS) AIR TCM Terminals and Reference Value........................97
BAG and SEAT BELT PRE-TENSIONER...............6 TROUBLE DIAGNOSIS FOR POWER SUPPLY........101
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN....................................101
System of A/T and Engine...........................................6 Diagnostic Procedure ..............................................102
Precautions ..................................................................6 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Service Notice or Precautions .....................................8 SWITCH .......................................................................104
TF
Wiring Diagrams and Trouble Diagnosis.....................9 Description ...............................................................104
PREPARATION .............................................................10 Wiring Diagram - AT - PNP/SW...............................106 PD
Special Service Tools ................................................10 Diagnostic Procedure ..............................................107
OVERALL SYSTEM ......................................................12 Component Inspection.............................................109
A/T Electrical Parts Location .....................................12 DTC P0710 A/T FLUID TEMPERATURE SENSOR AX
Circuit Diagram ..........................................................13 CIRCUIT .......................................................................110
Cross-sectional View .................................................14 Description ...............................................................110
Hydraulic Control Circuit............................................15 Wiring Diagram - AT - FTS ......................................112 SU
Shift Mechanism ........................................................16 Diagnostic Procedure ..............................................113
Control System ..........................................................25 Component Inspection.............................................115
BR
Control Mechanism....................................................26 DTC P0720 VEHICLE SPEED SENSOR.A/T
Control Valve .............................................................31 (REVOLUTION SENSOR) ...........................................116
ON BOARD DIAGNOSTIC SYSTEM Description ...............................................................116 ST
DESCRIPTION ...............................................................33 Wiring Diagram - AT - VSSA/T ................................118
Introduction ................................................................33 Diagnostic Procedure ..............................................119
OBD-II Function for A/T System................................33 Component Inspection.............................................120 RS
One or Two Trip Detection Logic of OBD-II ..............33 DTC P0725 ENGINE SPEED SIGNAL .......................121
OBD-II Diagnostic Trouble Code (DTC) ....................33 Description ...............................................................121
Malfunction Indicator Lamp (MIL)..............................37 Wiring Diagram - AT - ENGSS ................................122
BT
CONSULT-II ...............................................................37 Diagnostic Procedure ..............................................123
Diagnostic Procedure Without CONSULT-II..............46 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR HA
TROUBLE DIAGNOSIS - INTRODUCTION..................55 POSITION ....................................................................125
Introduction ................................................................55 Description ...............................................................125
Work Flow..................................................................59 Wiring Diagram - AT - 1ST ......................................128 SC
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........62 Diagnostic Procedure ..............................................129
A/T Fluid Check .........................................................62 Component Inspection.............................................130
Stall Test ....................................................................62 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR EL
Line Pressure Test.....................................................65 POSITION ....................................................................131
Road Test...................................................................66 Description ...............................................................131 IDX
Wiring Diagram - AT - 2ND......................................134
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................135 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
Component Inspection.............................................135 SENSOR CIRCUIT AND TCM POWER SOURCE) ....193
DTC P0733 IMPROPER SHIFTING TO 3RD GEAR Description ...............................................................193
POSITION ....................................................................137 Wiring Diagram - AT - BA/FTS ................................195
Description ...............................................................137 Diagnostic Procedure ..............................................196
Wiring Diagram - AT - 3RD......................................140 Component Inspection.............................................198
Diagnostic Procedure ..............................................141 DTC VEHICLE SPEED SENSOR.MTR .......................199
Component Inspection.............................................142 Description ...............................................................199
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR Wiring Diagram - AT - VSSMTR..............................201
POSITION ....................................................................143 Diagnostic Procedure ..............................................202
Description ...............................................................143 DTC TURBINE REVOLUTION SENSOR (VG33ER
Wiring Diagram - AT - 4TH ......................................147 ONLY) ..........................................................................203
Diagnostic Procedure ..............................................148 Description ...............................................................203
Component Inspection.............................................151 Wiring Diagram - AT - TRSA/T ................................205
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ..............................................206
SOLENOID VALVE......................................................152 Component Inspection.............................................207
Description ...............................................................152 DTC CONTROL UNIT (RAM), CONTROL UNIT
Wiring Diagram - AT - TCV......................................154 (ROM)...........................................................................208
Diagnostic Procedure ..............................................155 Description ...............................................................208
Component Inspection.............................................156 Diagnostic Procedure ..............................................209
DTC P0744 IMPROPER LOCK-UP OPERATION ......157 DTC CONTROL UNIT (EEP ROM) .............................210
Description ...............................................................157 Description ...............................................................210
Wiring Diagram - AT - TCCSIG ...............................159 Diagnostic Procedure ..............................................211
Diagnostic Procedure ..............................................160 TROUBLE DIAGNOSES FOR SYMPTOMS ...............212
Component Inspection.............................................163 Wiring Diagram - AT - NONDTC .............................212
DTC P0745 LINE PRESSURE SOLENOID VALVE ...164 1. O/D OFF Indicator Lamp Does Not Come On....215
Description ...............................................................164 2. Engine Cannot Be Started In P and N Position..217
Wiring Diagram - AT - LPSV....................................166 3. In P Position, Vehicle Moves Forward Or
Diagnostic Procedure ..............................................167 Backward When Pushed .........................................218
Component Inspection.............................................168 4. In N Position, Vehicle Moves ..............................219
DTC P0750 SHIFT SOLENOID VALVE A ..................169 5. Large Shock. N -> R Position .............................221
Description ...............................................................169 6. Vehicle Does Not Creep Backward In R
Wiring Diagram - AT - SSV/A ..................................171 Position ....................................................................223
Diagnostic Procedure ..............................................172 7. Vehicle Does Not Creep Forward In D, 2 Or 1
Component Inspection.............................................173 Position ....................................................................226
DTC P0755 SHIFT SOLENOID VALVE B ..................174 8. Vehicle Cannot Be Started From D1 ...................229
Description ...............................................................174 9. A/T Does Not Shift: D1 -> D2 Or Does Not
Wiring Diagram - AT - SSV/B ..................................176 Kickdown: D4 -> D2..................................................232
Diagnostic Procedure ..............................................177 10. A/T Does Not Shift: D2 -> D3.............................235
Component Inspection.............................................178 11. A/T Does Not Shift: D3 -> D4 .............................238
DTC P1705 THROTTLE POSITION SENSOR ...........179 12. A/T Does Not Perform Lock-up .........................241
Description ...............................................................179 13. A/T Does Not Hold Lock-up Condition ..............243
Wiring Diagram - AT - TPS......................................182 14. Lock-up Is Not Released...................................245
Diagnostic Procedure ..............................................183 15. Engine Speed Does Not Return To Idle (Light
Component Inspection.............................................187 Braking D4 -> D3).....................................................246
DTC P1760 OVERRUN CLUTCH SOLENOID 16. Vehicle Does Not Start From D1 .......................248
VALVE..........................................................................188 17. A/T Does Not Shift: D4 -> D3, When
Description ...............................................................188 Overdrive Control Switch ON -> OFF .....................249
Wiring Diagram - AT - OVRCSV..............................190 18. A/T Does Not Shift: D3 -> 22, When Selector
Diagnostic Procedure ..............................................191 Lever D -> 2 Position ..............................................250
Component Inspection.............................................192 19. A/T Does Not Shift: 22 -> 11, When Selector
Lever 2 -> 1 Position ...............................................251
AT-2
CONTENTS (Cont'd)
20. Vehicle Does Not Decelerate By Engine Control Valve Assembly...........................................293 GI
Brake........................................................................252 Control Valve Upper Body .......................................299
21. TCM Self-diagnosis Does Not Activate (PNP, Control Valve Lower Body .......................................304
Overdrive Control and Throttle Position Switches Reverse Clutch ........................................................306 MA
Circuit Checks) ........................................................252 High Clutch ..............................................................310
A/T SHIFT LOCK SYSTEM.........................................260 Forward and Overrun Clutches ...............................312
Description ...............................................................260 Low & Reverse Brake..............................................316
EM
Wiring Diagram - SHIFT -........................................261 Forward Clutch Drum Assembly..............................320
Diagnostic Procedure ..............................................262 Rear Internal Gear and Forward Clutch Hub ..........322 LC
Component Check ...................................................264 Band Servo Piston Assembly ..................................325
KEY INTERLOCK CABLE ..........................................265 Parking Pawl Components ......................................329
Components.............................................................265 ASSEMBLY..................................................................331 EC
Removal...................................................................265 Assembly (1)............................................................331
Installation................................................................266 Adjustment ...............................................................339
ON-VEHICLE SERVICE ..............................................267 Assembly (2)............................................................341 FE
Control Valve Assembly and Accumulators.............267 SERVICE DATA AND SPECIFICATIONS (SDS) .......348
Revolution Sensor Replacement .............................268 General Specifications.............................................348 CL
Turbine Revolution Sensor Replacement Shift Schedule..........................................................348
(VG33ER only).........................................................268 Stall Revolution........................................................348
Rear Oil Seal Replacement.....................................268 Line Pressure...........................................................349 MT
Parking Components Inspection..............................269 Return Springs.........................................................349
Park/Neutral Position (PNP) Switch Adjustment .....270 Accumulator O-ring..................................................350
Manual Control Linkage Adjustment........................270 Clutches and Brakes ...............................................350
REMOVAL AND INSTALLATION ...............................271 Oil Pump and Low One-way Clutch ........................353
Removal...................................................................271 Total End Play..........................................................353
TF
Installation................................................................272 Reverse Clutch Drum End Play ..............................353
OVERHAUL .................................................................274 Removal and Installation .........................................353
Components.............................................................274 Shift Solenoid Valves...............................................353 PD
Oil Channel ..............................................................276 Solenoid Valves .......................................................353
Locations of Needle Bearings, Thrust Washers A/T Fluid Temperature Sensor.................................354
and Snap Rings .......................................................277 Turbine Revolution Sensor ......................................354 AX
DISASSEMBLY............................................................278 Revolution Sensor ...................................................354
REPAIR FOR COMPONENT PARTS .........................289 Dropping Resistor ....................................................354
Oil Pump ..................................................................289
SU
BR
ST
RS
BT
HA
SC
EL
IDX
AT-3
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NGAT0179
ALPHABETICAL INDEX FOR DTC NGAT0179S01
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
A/T 1ST GR FNCTN P0731 AT-125
A/T 2ND GR FNCTN P0732 AT-131
A/T 3RD GR FNCTN P0733 AT-137
A/T 4TH GR FNCTN P0734 AT-143
A/T TCC S/V FNCTN P0744 AT-157
ATF TEMP SEN/CIRC P0710 AT-110
ENGINE SPEED SIG P0725 AT-121
L/PRESS SOL/CIRC P0745 AT-164
O/R CLTCH SOL/CIRC P1760 AT-188
PNP SW/CIRC P0705 AT-104
SFT SOL A/CIRC*2 P0750 AT-169
SFT SOL B/CIRC*2 P0755 AT-174
TCC SOLENOID/CIRC P0740 AT-152
TP SEN/CIRC A/T*2 P1705 AT-179
VEH SPD SEN/CIR AT*3 P0720 AT-116
*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.
AT-4
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NGAT0179S02
DTC GI
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
MA
P0705 PNP SW/CIRC AT-104
P0710 ATF TEMP SEN/CIRC AT-110
EM
P0720 VEH SPD SEN/CIR AT*3 AT-116
P0725 ENGINE SPEED SIG AT-121
LC
P0731 A/T 1ST GR FNCTN AT-125
P0732 A/T 2ND GR FNCTN AT-131 EC
P0733 A/T 3RD GR FNCTN AT-137
P0734 A/T 4TH GR FNCTN AT-143 FE
P0740 TCC SOLENOID/CIRC AT-152
P0744 A/T TCC S/V FNCTN AT-157 CL
P0745 L/PRESS SOL/CIRC AT-164
P0750 SFT SOL A/CIRC*2 AT-169 MT
P0755 SFT SOL B/CIRC*2 AT-174
P1705 TP SEN/CIRC A/T*2 AT-179
P1760 O/R CLTCH SOL/CIRC AT-188
*1: These numbers are prescribed by SAE J2012.
TF
*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. PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
AT-5
PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER" NGAT0001
The supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side), seat
belt pre-tensioners, a diagnosis sensor unit, crash zone sensor, seat belt buckle switches, warning lamp, wir-
ing harness and spiral cable.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
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