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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 ...............................................................81
PRECAUTIONS ...............................................................6 Symptom Chart..........................................................81 MT
Supplemental Restraint System (SRS) AIR TCM Terminals and Reference Value........................92
BAG and SEAT BELT PRE-TENSIONER...............6 TROUBLE DIAGNOSIS FOR POWER SUPPLY..........96
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN......................................96
System of A/T and Engine...........................................6 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Precautions ..................................................................6 SWITCH .........................................................................99
Service Notice or Precautions .....................................8 Description .................................................................99
TF
Wiring Diagrams and Trouble Diagnosis.....................9 Wiring Diagram - AT - PNP/SW...............................101
PREPARATION .............................................................10 Diagnostic Procedure ..............................................102 PD
Special Service Tools ................................................10 Component Inspection.............................................104
OVERALL SYSTEM ......................................................12 DTC P0710 A/T FLUID TEMPERATURE SENSOR
A/T Electrical Parts Location .....................................12 CIRCUIT .......................................................................105 AX
Circuit Diagram ..........................................................13 Description ...............................................................105
Cross-sectional View .................................................14 Wiring Diagram - AT - FTS ......................................107
Hydraulic Control Circuit............................................15 Diagnostic Procedure ..............................................108 SU
Shift Mechanism ........................................................16 Component Inspection.............................................110
Control System ..........................................................25 DTC P0720 VEHICLE SPEED SENSOR.A/T
BR
Control Mechanism....................................................26 (REVOLUTION SENSOR) ........................................... 111
Control Valve .............................................................31 Description ............................................................... 111
ON BOARD DIAGNOSTIC SYSTEM Wiring Diagram - AT - VSSA/T ................................113 ST
DESCRIPTION ...............................................................33 Diagnostic Procedure ..............................................114
Introduction ................................................................33 Component Inspection.............................................115
OBD-II Function for A/T System................................33 DTC P0725 ENGINE SPEED SIGNAL .......................116 RS
One or Two Trip Detection Logic of OBD-II ..............33 Description ...............................................................116
OBD-II Diagnostic Trouble Code (DTC) ....................33 Wiring Diagram - AT - ENGSS ................................117
Malfunction Indicator Lamp (MIL)..............................37 Diagnostic Procedure ..............................................118
BT
CONSULT-II ...............................................................37 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR
Diagnostic Procedure Without CONSULT-II..............46 POSITION ....................................................................120 HA
TROUBLE DIAGNOSIS - INTRODUCTION..................53 Description ...............................................................120
Introduction ................................................................53 Wiring Diagram - AT - 1ST ......................................123
Work Flow..................................................................57 Diagnostic Procedure ..............................................124 SC
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........59 Component Inspection.............................................125
A/T Fluid Check .........................................................59 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR
Stall Test ....................................................................59 POSITION ....................................................................126 EL
Line Pressure Test.....................................................62 Description ...............................................................126
Road Test...................................................................63 Wiring Diagram - AT - 2ND......................................129 IDX
Diagnostic Procedure ..............................................130
CONTENTS (Cont'd)
Component Inspection.............................................130 Description ...............................................................189
DTC P0733 IMPROPER SHIFTING TO 3RD GEAR Wiring Diagram - AT - BA/FTS ................................191
POSITION ....................................................................132 Diagnostic Procedure ..............................................192
Description ...............................................................132 Component Inspection.............................................194
Wiring Diagram - AT - 3RD......................................135 VEHICLE SPEED SENSOR.MTR................................195
Diagnostic Procedure ..............................................136 Description ...............................................................195
Component Inspection.............................................136 Wiring Diagram - AT - VSSMTR..............................197
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR Diagnostic Procedure ..............................................198
POSITION ....................................................................138 DTC CONTROL UNIT (RAM), CONTROL UNIT
Description ...............................................................138 (ROM)...........................................................................199
Wiring Diagram - AT - 4TH ......................................142 Description ...............................................................199
Diagnostic Procedure ..............................................143 Diagnostic Procedure ..............................................200
Component Inspection.............................................146 DTC CONTROL UNIT (EEPROM) ..............................201
DTC P0740 TORQUE CONVERTER CLUTCH Description ...............................................................201
SOLENOID VALVE......................................................147 Diagnostic Procedure ..............................................202
Description ...............................................................147 TROUBLE DIAGNOSES FOR SYMPTOMS ...............203
Wiring Diagram - AT - TCV......................................149 Wiring Diagram - AT - NONDTC .............................203
Diagnostic Procedure ..............................................150 1. O/D OFF Indicator Lamp Does Not Come On....206
Component Inspection.............................................151 2. Engine Cannot Be Started In P and N Position..208
DTC P0744 IMPROPER LOCK-UP OPERATION ......152 3. In P Position, Vehicle Moves Forward Or
Description ...............................................................152 Backward When Pushed .........................................209
Wiring Diagram - AT - TCCSIG ...............................155 4. In N Position, Vehicle Moves ..............................210
Diagnostic Procedure ..............................................156 5. Large Shock. N -> R Position .............................212
Component Inspection.............................................159 6. Vehicle Does Not Creep Backward In R
DTC P0745 LINE PRESSURE SOLENOID VALVE ...160 Position ....................................................................214
Description ...............................................................160 7. Vehicle Does Not Creep Forward In D, 2 Or 1
Wiring Diagram - AT - LPSV....................................162 Position ....................................................................217
Diagnostic Procedure ..............................................163 8. Vehicle Cannot Be Started From D1 ...................220
Component Inspection.............................................164 9. A/T Does Not Shift: D1 -> D2 Or Does Not
DTC P0750 SHIFT SOLENOID VALVE A ..................165 Kickdown: D4 -> D2..................................................223
Description ...............................................................165 10. A/T Does Not Shift: D2 -> D3.............................226
Wiring Diagram - AT - SSV/A ..................................167 11. A/T Does Not Shift: D3 -> D4 .............................229
Diagnostic Procedure ..............................................168 12. A/T Does Not Perform Lock-up .........................232
Component Inspection.............................................169 13. A/T Does Not Hold Lock-up Condition ..............234
DTC P0755 SHIFT SOLENOID VALVE B ..................170 14. Lock-up Is Not Released...................................236
Description ...............................................................170 15. Engine Speed Does Not Return To Idle (Light
Wiring Diagram - AT - SSV/B ..................................172 Braking D4 -> D3).....................................................237
Diagnostic Procedure ..............................................173 16. Vehicle Does Not Start From D1 .......................239
Component Inspection.............................................174 17. A/T Does Not Shift: D4 -> D3, When
DTC P1705 THROTTLE POSITION SENSOR ...........175 Overdrive Control Switch ON -> OFF .....................240
Description ...............................................................175 18. A/T Does Not Shift: D3 -> 22, When Selector
Wiring Diagram - AT - TPS......................................178 Lever D -> 2 Position ..............................................241
Diagnostic Procedure ..............................................179 19. A/T Does Not Shift: 22 -> 11, When Selector
Component Inspection.............................................183 Lever 2 -> 1 Position ...............................................242
DTC P1760 OVERRUN CLUTCH SOLENOID 20. Vehicle Does Not Decelerate By Engine
VALVE..........................................................................184 Brake........................................................................243
Description ...............................................................184 21. TCM Self-diagnosis Does Not Activate (PNP,
Wiring Diagram - AT - OVRCSV..............................186 Overdrive Control and Throttle Position Switches
Diagnostic Procedure ..............................................187 Circuit Checks) ........................................................243
Component Inspection.............................................188 A/T SHIFT LOCK SYSTEM.........................................251
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP Description ...............................................................251
SENSOR CIRCUIT AND TCM POWER SOURCE) ....189 Wiring Diagram - SHIFT -........................................252
AT-2
CONTENTS (Cont'd)
Diagnostic Procedure ..............................................253 Control Valve Lower Body .......................................294 GI
Component Check ...................................................255 Reverse Clutch ........................................................296
KEY INTERLOCK CABLE ..........................................256 High Clutch ..............................................................300
Components.............................................................256 Forward and Overrun Clutches ...............................302 MA
Removal...................................................................256 Low & Reverse Brake..............................................306
Installation................................................................257 Forward Clutch Drum Assembly..............................310
ON-VEHICLE SERVICE ..............................................258 Rear Internal Gear and Forward Clutch Hub ..........312
EM
Control Valve Assembly and Accumulators.............258 Band Servo Piston Assembly ..................................315
Revolution Sensor Replacement .............................259 Parking Pawl Components ......................................319 LC
Rear Oil Seal Replacement.....................................259 ASSEMBLY..................................................................321
Parking Components Inspection..............................259 Assembly (1)............................................................321
Park/Neutral Position (PNP) Switch Adjustment .....260 Adjustment ...............................................................329 EC
Manual Control Linkage Adjustment........................260 Assembly (2)............................................................331
REMOVAL AND INSTALLATION ...............................261 SERVICE DATA AND SPECIFICATIONS (SDS) .......338
Removal...................................................................261 General Specifications.............................................338 FE
Installation................................................................263 Shift Schedule..........................................................338
OVERHAUL .................................................................264 Stall Revolution........................................................338 CL
Components.............................................................264 Line Pressure...........................................................338
Oil Channel ..............................................................266 Return Springs.........................................................339
Locations of Needle Bearings, Thrust Washers Accumulator O-ring..................................................340 MT
and Snap Rings .......................................................267 Clutches and Brakes ...............................................340
DISASSEMBLY............................................................268 Oil Pump and Low One-way Clutch ........................342
REPAIR FOR COMPONENT PARTS .........................279 Total End Play..........................................................342
Oil Pump ..................................................................279 Reverse Clutch Drum End Play ..............................343
Control Valve Assembly...........................................283 Removal and Installation .........................................343
TF
Control Valve Upper Body .......................................289
PD
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) 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-152
ATF TEMP SEN/CIRC 1208 P0710 AT-105
ENGINE SPEED SIG 1207 P0725 AT-116
L/PRESS SOL/CIRC 1205 P0745 AT-160
O/R CLTCH SOL/CIRC 1203 P1760 AT-184
PNP SW/CIRC 1101 P0705 AT-99
SFT SOL A/CIRC*3 1108 P0750 AT-165
SFT SOL B/CIRC*3 1201 P0755 AT-170
TCC SOLENOID/CIRC 1204 P0740 AT-147
TP SEN/CIRC A/T*3 1206 P1705 AT-175
VEH SPD SEN/CIR AT*4 1102 P0720 AT-111
*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
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NGAT0179S02
DTC GI
Items
CONSULT-II Reference page
ECM*1 (CONSULT-II screen terms)
GST*2
MA
P0705 1101 PNP SW/CIRC AT-99
P0710 1208 ATF TEMP SEN/CIRC AT-105
EM
P0720 1102 VEH SPD SEN/CIR AT*4 AT-111
P0725 1207 ENGINE SPEED SIG AT-116
LC
P0731 1103 A/T 1ST GR FNCTN AT-120
P0732 1104 A/T 2ND GR FNCTN AT-126 EC
P0733 1105 A/T 3RD GR FNCTN AT-132
P0734 1106 A/T 4TH GR FNCTN AT-138 FE
P0740 1204 TCC SOLENOID/CIRC AT-147
P0744 1107 A/T TCC S/V FNCTN AT-152 CL
P0745 1205 L/PRESS SOL/CIRC AT-160
P0750 1108 SFT SOL A/CIRC*3 AT-165 MT
P0755 1201 SFT SOL B/CIRC*3 AT-170
P1705 1206 TP SEN/CIRC A/T*3 AT-175
P1760 1203 O/R CLTCH SOL/CIRC AT-184
*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
TF
*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
PD
the same time.
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, a crash zone sensor, 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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