Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Xterra 2000-2004 Approved Nissan Xterra 2001 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 ...............................................................80
PRECAUTIONS ...............................................................6 Symptom Chart..........................................................80 MT
Supplemental Restraint System (SRS) AIR TCM Terminals and Reference Value........................91
BAG and SEAT BELT PRE-TENSIONER...............6 TROUBLE DIAGNOSIS FOR POWER SUPPLY..........95
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN......................................95
System of A/T and Engine...........................................6 Diagnostic Procedure ................................................96
Precautions ..................................................................6 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Service Notice or Precautions .....................................8 SWITCH .........................................................................98
TF
Wiring Diagrams and Trouble Diagnosis.....................9 Description .................................................................98
PREPARATION .............................................................10 Wiring Diagram - AT - PNP/SW...............................100 PD
Special Service Tools ................................................10 Diagnostic Procedure ..............................................101
OVERALL SYSTEM ......................................................12 Component Inspection.............................................103
A/T Electrical Parts Location .....................................12 DTC P0710 A/T FLUID TEMPERATURE SENSOR AX
Circuit Diagram ..........................................................13 CIRCUIT .......................................................................104
Cross-sectional View .................................................14 Description ...............................................................104
Hydraulic Control Circuit............................................15 Wiring Diagram - AT - FTS ......................................106 SU
Shift Mechanism ........................................................16 Diagnostic Procedure ..............................................107
Control System ..........................................................25 Component Inspection.............................................109
BR
Control Mechanism....................................................26 DTC P0720 VEHICLE SPEED SENSOR.A/T
Control Valve .............................................................31 (REVOLUTION SENSOR) ...........................................110
ON BOARD DIAGNOSTIC SYSTEM Description ...............................................................110 ST
DESCRIPTION ...............................................................33 Wiring Diagram - AT - VSSA/T ................................112
Introduction ................................................................33 Diagnostic Procedure ..............................................113
OBD-II Function for A/T System................................33 Component Inspection.............................................114 RS
One or Two Trip Detection Logic of OBD-II ..............33 DTC P0725 ENGINE SPEED SIGNAL .......................115
OBD-II Diagnostic Trouble Code (DTC) ....................33 Description ...............................................................115
Malfunction Indicator Lamp (MIL)..............................36 Wiring Diagram - AT - ENGSS ................................116
BT
CONSULT-II ...............................................................37 Diagnostic Procedure ..............................................117
Diagnostic Procedure Without CONSULT-II..............46 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR HA
TROUBLE DIAGNOSIS - INTRODUCTION..................52 POSITION ....................................................................119
Introduction ................................................................52 Description ...............................................................119
Work Flow..................................................................56 Wiring Diagram - AT - 1ST ......................................122 SC
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........58 Diagnostic Procedure ..............................................123
A/T Fluid Check .........................................................58 Component Inspection.............................................124
Stall Test ....................................................................58 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR EL
Line Pressure Test.....................................................61 POSITION ....................................................................125
Road Test...................................................................62 Description ...............................................................125 IDX
Wiring Diagram - AT - 2ND......................................128
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................129 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
Component Inspection.............................................129 SENSOR CIRCUIT AND TCM POWER SOURCE) ....187
DTC P0733 IMPROPER SHIFTING TO 3RD GEAR Description ...............................................................187
POSITION ....................................................................131 Wiring Diagram - AT - BA/FTS ................................189
Description ...............................................................131 Diagnostic Procedure ..............................................190
Wiring Diagram - AT - 3RD......................................134 Component Inspection.............................................192
Diagnostic Procedure ..............................................135 DTC VEHICLE SPEED SENSOR.MTR .......................193
Component Inspection.............................................135 Description ...............................................................193
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR Wiring Diagram - AT - VSSMTR..............................195
POSITION ....................................................................137 Diagnostic Procedure ..............................................196
Description ...............................................................137 DTC CONTROL UNIT (RAM), CONTROL UNIT
Wiring Diagram - AT - 4TH ......................................141 (ROM)...........................................................................197
Diagnostic Procedure ..............................................142 Description ...............................................................197
Component Inspection.............................................145 Diagnostic Procedure ..............................................198
DTC P0740 TORQUE CONVERTER CLUTCH DTC CONTROL UNIT (EEPROM) ..............................199
SOLENOID VALVE......................................................146 Description ...............................................................199
Description ...............................................................146 Diagnostic Procedure ..............................................200
Wiring Diagram - AT - TCV......................................148 TROUBLE DIAGNOSES FOR SYMPTOMS ...............201
Diagnostic Procedure ..............................................149 Wiring Diagram - AT - NONDTC .............................201
Component Inspection.............................................150 1. O/D OFF Indicator Lamp Does Not Come On....204
DTC P0744 IMPROPER LOCK-UP OPERATION ......151 2. Engine Cannot Be Started In P and N Position..206
Description ...............................................................151 3. In P Position, Vehicle Moves Forward Or
Wiring Diagram - AT - TCCSIG ...............................153 Backward When Pushed .........................................207
Diagnostic Procedure ..............................................154 4. In N Position, Vehicle Moves ..............................208
Component Inspection.............................................157 5. Large Shock. N -> R Position .............................210
DTC P0745 LINE PRESSURE SOLENOID VALVE ...158 6. Vehicle Does Not Creep Backward In R
Description ...............................................................158 Position ....................................................................212
Wiring Diagram - AT - LPSV....................................160 7. Vehicle Does Not Creep Forward In D, 2 Or 1
Diagnostic Procedure ..............................................161 Position ....................................................................215
Component Inspection.............................................162 8. Vehicle Cannot Be Started From D1 ...................218
DTC P0750 SHIFT SOLENOID VALVE A ..................163 9. A/T Does Not Shift: D1 -> D2 Or Does Not
Description ...............................................................163 Kickdown: D4 -> D2..................................................221
Wiring Diagram - AT - SSV/A ..................................165 10. A/T Does Not Shift: D2 -> D3.............................224
Diagnostic Procedure ..............................................166 11. A/T Does Not Shift: D3 -> D4 .............................227
Component Inspection.............................................167 12. A/T Does Not Perform Lock-up .........................230
DTC P0755 SHIFT SOLENOID VALVE B ..................168 13. A/T Does Not Hold Lock-up Condition ..............232
Description ...............................................................168 14. Lock-up Is Not Released...................................234
Wiring Diagram - AT - SSV/B ..................................170 15. Engine Speed Does Not Return To Idle (Light
Diagnostic Procedure ..............................................171 Braking D4 -> D3).....................................................235
Component Inspection.............................................172 16. Vehicle Does Not Start From D1 .......................237
DTC P1705 THROTTLE POSITION SENSOR ...........173 17. A/T Does Not Shift: D4 -> D3, When
Description ...............................................................173 Overdrive Control Switch ON -> OFF .....................238
Wiring Diagram - AT - TPS......................................176 18. A/T Does Not Shift: D3 -> 22, When Selector
Diagnostic Procedure ..............................................177 Lever D -> 2 Position ..............................................239
Component Inspection.............................................180 19. A/T Does Not Shift: 22 -> 11, When Selector
DTC P1760 OVERRUN CLUTCH SOLENOID Lever 2 -> 1 Position ...............................................240
VALVE..........................................................................182 20. Vehicle Does Not Decelerate By Engine
Description ...............................................................182 Brake........................................................................241
Wiring Diagram - AT - OVRCSV..............................184 21. TCM Self-diagnosis Does Not Activate (PNP,
Diagnostic Procedure ..............................................185 Overdrive Control and Throttle Position Switches
Component Inspection.............................................186 Circuit Checks) ........................................................241
A/T SHIFT LOCK SYSTEM.........................................249
AT-2
CONTENTS (Cont'd)
Description ...............................................................249 Reverse Clutch ........................................................294 GI
Wiring Diagram - SHIFT -........................................250 High Clutch ..............................................................298
Diagnostic Procedure ..............................................251 Forward and Overrun Clutches ...............................300
Component Check ...................................................253 Low & Reverse Brake..............................................304 MA
KEY INTERLOCK CABLE ..........................................254 Forward Clutch Drum Assembly..............................308
Components.............................................................254 Rear Internal Gear and Forward Clutch Hub ..........310
Removal...................................................................254 Band Servo Piston Assembly ..................................313
EM
Installation................................................................255 Parking Pawl Components ......................................317
ON-VEHICLE SERVICE ..............................................256 ASSEMBLY..................................................................319 LC
Control Valve Assembly and Accumulators.............256 Assembly (1)............................................................319
Revolution Sensor Replacement .............................257 Adjustment ...............................................................327
Rear Oil Seal Replacement.....................................257 Assembly (2)............................................................329 EC
Parking Components Inspection..............................257 SERVICE DATA AND SPECIFICATIONS (SDS) .......336
Park/Neutral Position (PNP) Switch Adjustment .....258 General Specifications.............................................336
Manual Control Linkage Adjustment........................258 Shift Schedule..........................................................336 FE
REMOVAL AND INSTALLATION ...............................259 Stall Revolution........................................................336
Removal...................................................................259 Line Pressure...........................................................336 CL
Installation................................................................260 Return Springs.........................................................337
OVERHAUL .................................................................262 Accumulator O-ring..................................................338
Components.............................................................262 Clutches and Brakes ...............................................338 MT
Oil Channel ..............................................................264 Oil Pump and Low One-way Clutch ........................340
Locations of Needle Bearings, Thrust Washers Total End Play..........................................................340
and Snap Rings .......................................................265 Reverse Clutch Drum End Play ..............................341
DISASSEMBLY............................................................266 Removal and Installation .........................................341
REPAIR FOR COMPONENT PARTS .........................277 Shift Solenoid Valves...............................................341
TF
Oil Pump ..................................................................277 Solenoid Valves .......................................................341
Control Valve Assembly...........................................281 A/T Fluid Temperature Sensor.................................341
Control Valve Upper Body .......................................287 Revolution Sensor ...................................................341 PD
Control Valve Lower Body .......................................292 Dropping Resistor ....................................................341
AX
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*2
A/T 1ST GR FNCTN P0731 AT-119
A/T 2ND GR FNCTN P0732 AT-125
A/T 3RD GR FNCTN P0733 AT-131
A/T 4TH GR FNCTN P0734 AT-137
A/T TCC S/V FNCTN P0744 AT-151
ATF TEMP SEN/CIRC P0710 AT-104
ENGINE SPEED SIG P0725 AT-115
L/PRESS SOL/CIRC P0745 AT-158
O/R CLTCH SOL/CIRC P1760 AT-182
PNP SW/CIRC P0705 AT-98
SFT SOL A/CIRC*3 P0750 AT-163
SFT SOL B/CIRC*3 P0755 AT-168
TCC SOLENOID/CIRC P0740 AT-146
TP SEN/CIRC A/T*3 P1705 AT-173
VEH SPD SEN/CIR AT*1 P0720 AT-110
*1: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
the same time.
*2: These numbers are prescribed by SAE J2012.
*3: When the fail-safe operation occurs, the MIL illuminates.
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*2
MA
P0705 PNP SW/CIRC AT-98
P0710 ATF TEMP SEN/CIRC AT-104
EM
P0720 VEH SPD SEN/CIR AT*1 AT-110
P0725 ENGINE SPEED SIG AT-115
LC
P0731 A/T 1ST GR FNCTN AT-119
P0732 A/T 2ND GR FNCTN AT-125 EC
P0733 A/T 3RD GR FNCTN AT-131
P0734 A/T 4TH GR FNCTN AT-137 FE
P0740 TCC SOLENOID/CIRC AT-146
P0744 A/T TCC S/V FNCTN AT-151 CL
P0745 L/PRESS SOL/CIRC AT-158
P0750 SFT SOL A/CIRC*3 AT-163 MT
P0755 SFT SOL B/CIRC*3 AT-168
P1705 TP SEN/CIRC A/T*3 AT-173
P1760 O/R CLTCH SOL/CIRC AT-182
*1: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
TF
the same time.
*2: These numbers are prescribed by SAE J2012.
*3: When the fail-safe operation occurs, the MIL illuminates. 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, warning lamp, wiring 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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