Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 1999-2003 Approved Nissan Pathfinder 2000 AT
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EXIT
GI
AUTOMATIC TRANSMISSION
MA
SECTION AT EM
LC
EC
FE
CONTENTS CL
TROUBLE DIAGNOSIS - INDEX ....................................4 TROUBLE DIAGNOSIS - GENERAL
MT
Alphabetical & P No. Index for DTC ...........................4 DESCRIPTION ...............................................................81
PRECAUTIONS ...............................................................6 Symptom Chart..........................................................81
Precautions for Supplemental Restraint System TCM Terminals and Reference Value........................92
(SRS) AIR BAG and SEAT BELT TROUBLE DIAGNOSIS FOR POWER SUPPLY..........96
PRE-TENSIONER ......................................................6 Wiring Diagram - AT - MAIN......................................96
Precautions for On Board Diagnostic (OBD) DTC P0705 PARK/NEUTRAL POSITION SWITCH .....99 TF
System of A/T and Engine...........................................6 Description .................................................................99
Precautions ..................................................................6 Wiring Diagram - AT - PNP/SW...............................101
Service Notice or Precautions .....................................8 Diagnostic Procedure ..............................................102
PD
Wiring Diagrams and Trouble Diagnosis.....................9 Component Inspection.............................................104
PREPARATION .............................................................10 DTC P0710 A/T FLUID TEMPERATURE SENSOR AX
Special Service Tools ................................................10 CIRCUIT .......................................................................105
OVERALL SYSTEM ......................................................12 Description ...............................................................105
A/T Electrical Parts Location .....................................12 Wiring Diagram - AT - FTS ......................................107 SU
Circuit Diagram ..........................................................13 Diagnostic Procedure ..............................................108
Cross-sectional View .................................................14 Component Inspection.............................................109
Hydraulic Control Circuit............................................15 DTC P0720 VEHICLE SPEED SENSOR.A/T BR
Shift Mechanism ........................................................16 (REVOLUTION SENSOR) ...........................................110
Control System ..........................................................25 Description ...............................................................110 ST
Control Mechanism....................................................26 Wiring Diagram - AT - VSSA/T ................................112
Control Valve .............................................................31 Diagnostic Procedure ..............................................113
ON BOARD DIAGNOSTIC SYSTEM Component Inspection.............................................114 RS
DESCRIPTION ...............................................................33 DTC P0725 ENGINE SPEED SIGNAL .......................115
Introduction ................................................................33 Description ...............................................................115
OBD-II Function for A/T System................................33 Wiring Diagram - AT - ENGSS ................................117 BT
One or Two Trip Detection Logic of OBD-II ..............33 Diagnostic Procedure ..............................................118
OBD-II Diagnostic Trouble Code (DTC) ....................33 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR
Malfunction Indicator Lamp (MIL)..............................37 POSITION ....................................................................120
HA
CONSULT ..................................................................37 Description ...............................................................120
Diagnostic Procedure Without CONSULT.................46 Wiring Diagram - AT - 1ST ......................................123 SC
TROUBLE DIAGNOSIS - INTRODUCTION..................53 Diagnostic Procedure ..............................................124
Introduction ................................................................53 Component Inspection.............................................125
Work Flow..................................................................57 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR EL
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........59 POSITION ....................................................................126
A/T Fluid Check .........................................................59 Description ...............................................................126
Stall Test ....................................................................59 Wiring Diagram - AT - 2ND......................................129
IDX
Line Pressure Test.....................................................62 Diagnostic Procedure ..............................................130
Road Test...................................................................63 Component Inspection.............................................131
EXIT
CONTENTS (Cont'd)
DTC P0733 IMPROPER SHIFTING TO 3RD GEAR Wiring Diagram - AT - BA/FTS ................................195
POSITION ....................................................................132 Diagnostic Procedure ..............................................196
Description ...............................................................132 Component Inspection.............................................198
Wiring Diagram - AT - 3RD......................................135 VEHICLE SPEED SENSOR.MTR................................199
Diagnostic Procedure ..............................................136 Description ...............................................................199
Component Inspection.............................................137 Wiring Diagram - AT - VSSMTR..............................201
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR Diagnostic Procedure ..............................................202
POSITION ....................................................................138 CONTROL UNIT (RAM), CONTROL UNIT (ROM).....203
Description ...............................................................138 Description ...............................................................203
Wiring Diagram - AT - 4TH ......................................142 Diagnostic Procedure ..............................................204
Diagnostic Procedure ..............................................143 CONTROL UNIT (EEP ROM)......................................205
Component Inspection.............................................147 Description ...............................................................205
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ..............................................206
SOLENOID VALVE......................................................148 TROUBLE DIAGNOSES FOR SYMPTOMS ...............207
Description ...............................................................148 Wiring Diagram - AT - NONDTC .............................207
Wiring Diagram - AT - TCV......................................150 1. O/D OFF Indicator Lamp Does Not Come On....210
Diagnostic Procedure ..............................................151 2. Engine Cannot Be Started In P and N
Component Inspection.............................................152 Position ....................................................................212
DTC P0744 IMPROPER LOCK-UP OPERATION ......153 3. In P Position, Vehicle Moves Forward Or
Description ...............................................................153 Backward When Pushed .........................................213
Wiring Diagram - AT - TCCSIG ...............................156 4. In N Position, Vehicle Moves ...........................214
Diagnostic Procedure ..............................................157 5. Large Shock. N -> R Position .......................216
Component Inspection.............................................161 6. Vehicle Does Not Creep Backward In R
DTC P0745 LINE PRESSURE SOLENOID VALVE ...162 Position ....................................................................218
Description ...............................................................162 7. Vehicle Does Not Creep Forward In D, 2
Wiring Diagram - AT - LPSV....................................164 Or 1 Position.........................................................221
Diagnostic Procedure ..............................................165 8. Vehicle Cannot Be Started From D1 ...................224
Component Inspection.............................................167 9. A/T Does Not Shift: D1 -> D2 Or Does Not
DTC P0750 SHIFT SOLENOID VALVE A ..................169 Kickdown: D4 -> D2..................................................227
Description ...............................................................169 10. A/T Does Not Shift: D2 -> D3.............................230
Wiring Diagram - AT - SSV/A ..................................171 11. A/T Does Not Shift: D3 -> D4 .............................233
Diagnostic Procedure ..............................................172 12. A/T Does Not Perform Lock-up .........................236
Component Inspection.............................................173 13. A/T Does Not Hold Lock-up Condition ..............238
DTC P0755 SHIFT SOLENOID VALVE B ..................174 14. Lock-up Is Not Released...................................240
Description ...............................................................174 15. Engine Speed Does Not Return To Idle (Light
Wiring Diagram - AT - SSV/B ..................................176 Braking D4 -> D3).....................................................241
Diagnostic Procedure ..............................................177 16. Vehicle Does Not Start From D1 .......................243
Component Inspection.............................................178 17. A/T Does Not Shift: D4 -> D3, When
DTC P1705 THROTTLE POSITION SENSOR ...........179 Overdrive Control Switch ON -> OFF ...............244
Description ...............................................................179 18. A/T Does Not Shift: D3 -> 22, When Selector
Wiring Diagram - AT - TPS......................................182 Lever D -> 2 Position.........................................245
Diagnostic Procedure ..............................................183 19. A/T Does Not Shift: 22 -> 11, When Selector
Component Inspection.............................................187 Lever 2 -> 1 Position .........................................246
DTC P1760 OVERRUN CLUTCH SOLENOID 20. Vehicle Does Not Decelerate By Engine
VALVE..........................................................................188 Brake........................................................................247
Description ...............................................................188 21. TCM Self-diagnosis Does Not Activate (PNP,
Wiring Diagram - AT - OVRCSV..............................190 Overdrive Control and Throttle Position Switches
Diagnostic Procedure ..............................................191 Circuit Checks) ........................................................247
Component Inspection.............................................192 A/T SHIFT LOCK SYSTEM.........................................255
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP Description ...............................................................255
SENSOR CIRCUIT AND TCM POWER SOURCE) ....193 Wiring Diagram - SHIFT -........................................256
Description ...............................................................193 Diagnostic Procedure ..............................................257
AT-2
EXIT
CONTENTS (Cont'd) GI
Component Check ...................................................259 High Clutch ..............................................................307
KEY INTERLOCK CABLE ..........................................260 Forward and Overrun Clutches ...............................309 MA
Components.............................................................260 Low & Reverse Brake..............................................313
Removal...................................................................260 Forward Clutch Drum Assembly..............................317
Installation................................................................261 Rear Internal Gear and Forward Clutch Hub ..........319 EM
ON-VEHICLE SERVICE ..............................................262 Band Servo Piston Assembly ..................................322
Control Valve Assembly and Accumulators.............262 Parking Pawl Components ......................................326
Revolution Sensor Replacement .............................263 ASSEMBLY..................................................................328
LC
Rear Oil Seal Replacement.....................................263 Assembly (1)............................................................328
Rear Oil Seal and Companion Flange Oil Seal Adjustment ...............................................................336 EC
Replacement............................................................263 Assembly (2)............................................................338
Parking Components Inspection..............................264 SERVICE DATA AND SPECIFICATIONS (SDS) .......345
Park/Neutral Position Switch Adjustment ................265 General Specifications.............................................345 FE
Manual Control Linkage Adjustment........................265 Shift Schedule..........................................................345
REMOVAL AND INSTALLATION ...............................266 Stall Revolution........................................................345
Removal...................................................................266 Line Pressure...........................................................345
CL
Installation................................................................267 Return Springs.........................................................346
OVERHAUL .................................................................270 Accumulator O-ring..................................................347 MT
Components.............................................................270 Clutches and Brakes ...............................................347
Oil Channel ..............................................................273 Oil Pump and Low One-way Clutch ........................349
Locations of Needle Bearings, Thrust Washers Total End Play..........................................................349
and Snap Rings .......................................................274 Reverse Clutch Drum End Play ..............................350
DISASSEMBLY............................................................275 Removal and Installation .........................................350
REPAIR FOR COMPONENT PARTS .........................286 Shift Solenoid Valves...............................................350 TF
Oil Pump ..................................................................286 Solenoid Valves .......................................................350
Control Valve Assembly...........................................290 A/T Fluid Temperature Sensor.................................350
PD
Control Valve Upper Body .......................................296 Revolution Sensor ...................................................350
Control Valve Lower Body .......................................301 Dropping Resistor ....................................................350
Reverse Clutch ........................................................303 AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
AT-3
EXIT
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NAAT0179
ALPHABETICAL INDEX FOR DTC NAAT0179S01
DTC
Items
CONSULT Reference page
(CONSULT screen terms) ECM*1
GST*2
A/T 1ST GR FNCTN 1103 P0731 AT-120
A/T 2ND GR FNCTN 1104 P0732 AT-126
A/T 3RD GR FNCTN 1105 P0733 AT-132
A/T 4TH GR FNCTN 1106 P0734 AT-138
A/T TCC S/V FNCTN 1107 P0744 AT-153
ATF TEMP SEN/CIRC 1208 P0710 AT-105
ENGINE SPEED SIG 1207 P0725 AT-115
L/PRESS SOL/CIRC 1205 P0745 AT-162
O/R CLTCH SOL/CIRC 1203 P1760 AT-188
PNP SW/CIRC 1101 P0705 AT-99
SFT SOL A/CIRC*3 1108 P0750 AT-169
SFT SOL B/CIRC*3 1201 P0755 AT-174
TCC SOLENOID/CIRC 1204 P0740 AT-148
TP SEN/CIRC A/T*3 1206 P1705 AT-179
VEH SPD SEN/CIR AT*4 1102 P0720 AT-110
*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*2: These numbers are prescribed by SAE J2012.
*3: When the fail-safe operation occurs, the MIL illuminates.
*4: 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
EXIT
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NAAT0179S02
GI
DTC
Items
CONSULT (CONSULT screen terms)
Reference page MA
ECM*1
GST*2
P0705 1101 PNP SW/CIRC AT-99 EM
P0710 1208 ATF TEMP SEN/CIRC AT-105
P0720 1102 VEH SPD SEN/CIR AT*4 AT-110 LC
P0725 1207 ENGINE SPEED SIG AT-115
P0731 1103 A/T 1ST GR FNCTN AT-120 EC
P0732 1104 A/T 2ND GR FNCTN AT-126
P0733 1105 A/T 3RD GR FNCTN AT-132 FE
P0734 1106 A/T 4TH GR FNCTN AT-138
P0740 1204 TCC SOLENOID/CIRC AT-148 CL
P0744 1107 A/T TCC S/V FNCTN AT-153
P0745 1205 L/PRESS SOL/CIRC AT-162
MT
P0750 1108 SFT SOL A/CIRC*3 AT-169
P0755 1201 SFT SOL B/CIRC*3 AT-174
P1705 1206 TP SEN/CIRC A/T*3 AT-179
TF
P1760 1203 O/R CLTCH SOL/CIRC AT-188
*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*2: These numbers are prescribed by SAE J2012.
PD
*3: When the fail-safe operation occurs, the MIL illuminates.
*4: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
the same time. AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
AT-5
EXIT
PRECAUTIONS
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Precautions for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" NAAT0001
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 SRS system composition which is available to NISSAN MODEL R50 is as follows:
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