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AUTOMATIC TRANSAXLE
SECTION AT
CONTENTS
EURO-OBD CONSULT-II ...............................................................31
Diagnostic Procedure Without CONSULT-II..............35
TROUBLE DIAGNOSIS - INDEX ....................................4
Alphabetical & P No. Index for DTC ...........................4
EURO-OBD
TROUBLE DIAGNOSIS - INTRODUCTION..................41
PRECAUTIONS ...............................................................6 Introduction ................................................................41
Precautions for Supplemental Restraint System Work Flow..................................................................44
(SRS) AIR BAG and SEAT BELT
PRE-TENSIONER ......................................................6 EXCEPT FOR EURO-OBD
Precautions for On Board Diagnostic (EURO-
OBD) System of CVT and Engine...............................6 TROUBLE DIAGNOSIS - INTRODUCTION..................46
Precautions ..................................................................6 Introduction ................................................................46
Service Notice or Precautions .....................................7 Work Flow..................................................................49
Wiring Diagrams and Trouble Diagnoses....................8
PREPARATION ...............................................................9
Special Service Tools ..................................................9 TROUBLE DIAGNOSIS - BASIC INSPECTION ...........51
CVT FLUID.....................................................................10 CVT Fluid Check .......................................................51
Checking CVT Fluid...................................................10 Stall Test ....................................................................51
Changing CVT Fluid ..................................................11 Line Pressure Test.....................................................52
OVERALL SYSTEM ......................................................12 Road Test...................................................................53
CVT Electrical Parts Location....................................12 TROUBLE DIAGNOSIS - GENERAL
Circuit Diagram ..........................................................13 DESCRIPTION ...............................................................58
Cross-sectional View - RE0F06A ..............................14 TCM Terminals and Reference Value........................58
Control System ..........................................................15 TROUBLE DIAGNOSIS FOR POWER SUPPLY..........62
Wiring Diagram - AT - MAIN......................................62
EURO-OBD TCM Terminals and Reference Value........................64
Diagnostic Procedure ................................................65
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION ...............................................................18 EURO-OBD
Introduction ................................................................18
EURO-OBD Function for CVT System......................18 DTC P0705 PARK/NEUTRAL POSITION (PNP)
EURO-OBD Diagnostic Trouble Code (DTC)............18 SWITCH .........................................................................66
Malfunction Indicator (MI) ..........................................21 Description .................................................................66
CONSULT-II ...............................................................21 Wiring Diagram - AT - PNP/SW.................................68
Diagnostic Procedure ................................................70
EXCEPT FOR EURO-OBD Component Inspection...............................................72
DTC P0710 CVT FLUID TEMPERATURE SENSOR
ON BOARD DIAGNOSTIC SYSTEM CIRCUIT .........................................................................73
DESCRIPTION ...............................................................31 Description .................................................................73
CONTENTS (Cont'd)
Wiring Diagram - AT - FTS ........................................75 EXCEPT FOR EURO-OBD
Diagnostic Procedure ................................................77
VEHICLE SPEED SENSOR CVT (SECONDARY
DTC P0715 PRIMARY SPEED SENSOR .....................79
SPEED SENSOR)........................................................126
Description .................................................................79
Description ...............................................................126
Wiring Diagram - AT - PSSA/T ..................................80
Wiring Diagram - AT - VSSA/T ................................128
Diagnostic Procedure ................................................82
Diagnostic Procedure ..............................................130
Component Inspection...............................................83
PRIMARY SPEED SENSOR .......................................132
DTC P0720 VEHICLE SPEED SENSOR
Description ...............................................................132
(SECONDARY SPEED SENSOR) ................................84
Wiring Diagram - AT - VSSMTR..............................134
Description .................................................................84
Diagnostic Procedure ..............................................136
Wiring Diagram - AT - VSSA/T ..................................86
THROTTLE POSITION SENSOR................................137
Diagnostic Procedure ................................................88
Description ...............................................................137
Component Inspection...............................................89
Wiring Diagram - AT - TPS......................................139
DTC P0725 ENGINE SPEED SIGNAL .........................90
Diagnostic Procedure ..............................................141
Description .................................................................90
Component Inspection.............................................145
Wiring Diagram - AT - ENGSS ..................................91
STEPPING MOTOR - CIRCUIT...................................146
Diagnostic Procedure ................................................92
Description ...............................................................146
DTC P0740 TORQUE CONVERTER CLUTCH
Wiring Diagram - AT - STM .....................................147
SOLENOID VALVE........................................................94
Diagnostic Procedure ..............................................148
Description .................................................................94
Component Inspection.............................................149
Wiring Diagram - AT - TCV........................................96
STEP MOTOR - FUNCTION .......................................150
Diagnostic Procedure ................................................97
Description ...............................................................150
Component Inspection...............................................98
Diagnostic Procedure ..............................................150
DTC P0745 LINE PRESSURE SOLENOID VALVE .....99
LINE PRESSURE SENSOR ........................................151
Description .................................................................99
Description ...............................................................151
Wiring Diagram - AT - LPSV....................................101
Wiring Diagram - AT - LPS ......................................153
Diagnostic Procedure ..............................................102
Diagnostic Procedure ..............................................155
Component Inspection.............................................103
Component Inspection.............................................156
DTC P1705 THROTTLE POSITION SENSOR ...........104
LINE PRESSURE SOLENOID VALVE .......................157
Description ...............................................................104
Description ...............................................................157
Wiring Diagram - AT - TPS......................................106
Wiring Diagram - AT - LPSV....................................159
Diagnostic Procedure ..............................................108
Diagnostic Procedure ..............................................160
Component Inspection............................................. 111
Component Inspection.............................................163
DTC P1777 STEP MOTOR - CIRCUIT .......................112
TORQUE CONVERTER CLUTCH SOLENOID
Description ...............................................................112
VALVE..........................................................................164
Wiring Diagram - AT - STM .....................................114
Description ...............................................................164
Diagnostic Procedure ..............................................115
Wiring Diagram - AT - TCV......................................166
Component Inspection.............................................116
Diagnostic Procedure ..............................................167
DTC P1778 STEP MOTOR - FUNCTION ...................117
Component Inspection.............................................169
Description ...............................................................117
CVT FLUID TEMPERATURE SENSOR CIRCUIT ......170
Diagnostic Procedure ..............................................118
Description ...............................................................170
DTC P1791 LINE PRESSURE SENSOR....................119
Wiring Diagram - AT - FTS ......................................172
Description ...............................................................119
Diagnostic Procedure ..............................................174
Wiring Diagram - AT - LPS ......................................121
ENGINE SPEED SIGNAL............................................176
Diagnostic Procedure ..............................................123
Description ...............................................................176
Component Inspection.............................................124
Wiring Diagram - AT - ENGSS ................................177
Diagnostic Procedure ..............................................178
CVT SAFE FUNCTION................................................125
Description ...............................................................125
CONTROL UNIT (RAM), CONTROL UNIT (ROM).....180
Diagnostic Procedure ..............................................125
Description ...............................................................180
Diagnostic Procedure ..............................................181
AT-2
CONTENTS (Cont'd)
CONTROL UNIT (EEPROM) .......................................182 ON-VEHICLE SERVICE ..............................................204
Description ...............................................................182 Control Cable Adjustment........................................204
Diagnostic Procedure ..............................................183 Park/Neutral Position (PNP) Switch Adjustment .....204
TROUBLE DIAGNOSES FOR NON-DETECTABLE Differential Side Oil Seal Replacement ...................204
ITEMS...........................................................................184 REMOVAL AND INSTALLATION ...............................206
PNP Switch, Stop Lamp Switch and Throttle Removal...................................................................206
Position Switch ........................................................184 Inspection.................................................................206
Diagnostic Procedure ..............................................184 Installation................................................................207
Wiring Diagram - AT - NONDTC .............................188 Air Breather Hose ....................................................208
TROUBLE DIAGNOSES FOR SYMPTOMS ...............192 CVT Fluid Cooler .....................................................208
SPORT Indicator Lamp Does Not Come On ..........192 Components.............................................................209
A/T SHIFT LOCK SYSTEM.........................................195 SERVICE DATA AND SPECIFICATIONS (SDS) .......210
Description ...............................................................195 General Specifications.............................................210
Shift Lock System Electrical Parts Location............195 Stall Revolution........................................................210
Wiring Diagram - SHIFT -........................................196 Line Pressure...........................................................210
Diagnostic Procedure ..............................................198 Removal and Installation .........................................210
KEY INTERLOCK CABLE ..........................................202 A/T Fluid Temperature Sensor.................................210
Components.............................................................202 Solenoid Valves .......................................................210
Removal...................................................................202 Dropping Resistor ....................................................210
Installation................................................................203
AT-3
TROUBLE DIAGNOSIS -- INDEX EURO-OBD
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NLAT0001
ALPHABETICAL INDEX FOR DTC NLAT0001S01
Check if the vehicle is a model with Euro-OBD system or not by the
"Type approval number" on the identification plate. Refer to GI
section, "IDENTIFICATION PLATE".
Type approval number Model
Available With Euro-OBD system
Not available (blank) Without Euro-OBD system
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms) ECM*1
GST*2
ATF TEMP SEN/CIRC 0710 P0710 AT-73
ENG SPEED SIG 0725 P0725 AT-90
LINE PRESSURE SEN 1791 P1791 AT-119
L/PRESS SOL/CIRC 0745 P0745 AT-99
PNP SW/CIRC 0705 P0705 AT-66
PRI SPEED SIG/CIRC 0715 P0715 AT-79
STEP MOTOR/CIRC 1777 P1777 AT-112
STEP MOTOR/FNCTN 1778 P1778 AT-117
TP SEN/CIRC A/T*3 1705 P1705 AT-104
TCC SOLENOID/CIRC 0740 P0740 AT-94
VEH SPD SEN/CIR A/T 0720 P0720 AT-84
*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
AT-4
TROUBLE DIAGNOSIS -- INDEX EURO-OBD
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NLAT0001S02
Check if the vehicle is a model with Euro-OBD system or not by the
"Type approval number" on the identification plate. Refer to GI
section, "IDENTIFICATION PLATE".
Type approval number Model
Available With Euro-OBD system
Not available (blank) Without Euro-OBD system
DTC
Items
CONSULT-II Reference page
ECM*1 (CONSULT-II screen terms)
GST*2
P0705 0705 PNP SW/CIRC AT-66
P0710 0710 ATF TEMP SEN/CIRC AT-73
P0715 0715 PRI SPEED SIG/CIRC AT-79
P0720 0720 VEH SPD SEN/CIR AT AT-84
P0725 0725 ENG SPEED SIG AT-90
P0740 0740 TCC SOLENOID/CIRC AT-94
P0745 0745 L/PRESS SOL/CIRC AT-99
P1705 1705 TP SEN/CIRC A/T*3 AT-104
P1777 1777 STEP MOTOR/CIRC AT-112
P1778 1778 STEP MOTOR/FNCTN AT-117
P1791 1791 LINE PRESSURE SEN AT-119
*1: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*2: These numbers are prescribed by ISO15031-6.
*3: When the fail-safe operation occurs, the MI illuminates.
AT-5
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" NLAT0002
The Supplemental Restraint System "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a seat
belt, help 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 and
on the instrument panel on the passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warning
lamp, wiring harness and spiral cable.
In addition to the supplemental air bag modules for a frontal collision, the supplemental side air bag used along
with the seat belt helps to reduce the risk or severity of injury to the driver and front passenger in a side col-
lision. The supplemental side air bag consists of air bag modules (located in the outer side of front seats),
satellite sensor, diagnosis sensor unit (one of components of supplemental air bags for a frontal collision),
wiring harness, warning lamp (one of components of supplemental air bags for a frontal collision). Information
necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
+ To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed
by an authorized NISSAN dealer.
+ Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
+ Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified with yellow harness connector (and with
yellow harness protector or yellow insulation tape before the harness connectors).
Precautions for On Board Diagnostic (EURO-
OBD) System of CVT and Engine NLAT0198
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MI) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
+ Be sure to turn the ignition switch "OFF" and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc.
will cause the MI to light up.
+ Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
+ Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MI to light up due to a short circuit.
+ Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to a malfunction of the EGR system or fuel injection system, etc.
+ Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Precautions NLAT0003
+ Before connecting or disconnecting the TCM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if
ignition switch is turned off.
SEF289H
AT-6
PRECAUTIONS
Precautions (Cont'd)
+ When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors.
AAT470A
+ Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions prop-
erly or not. (See page AT-58.)
MEF040DA
+ After performing each TROUBLE DIAGNOSIS, perform
"DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE".
The DTC should not be displayed in the "DTC CONFIRMA-
TION PROCEDURE" if the repair is completed.
SAT652J
+ It is very important to perform functional tests whenever they
are indicated.
+ Extreme care should be taken to avoid damage to O-rings,
seals and gaskets when assembling.
+ When the CVT drain plug is removed, only some of the fluid is
drained. Old CVT fluid will remain in torque converter and CVT
fluid cooling system.
Always follow the procedures under "Changing CVT Fluid" in
the MA section when changing CVT fluid.
Service Notice or Precautions NLAT0004
FAIL-SAFE NLAT0004S01
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs even with a shift lever position of "L" or "D". The customer may com-
plain of sluggish or poor acceleration.
When the ignition key is turned "ON" following Fail-Safe operation, SPORT indicator lamp blinks for about 8
seconds. [For "TCM SELF-DIAGNOSTIC PROCEDURE (No Tools)", refer to AT-28.]
The blinking of the SPORT indicator lamp for about 8 seconds will appear only once and be cleared. The cus-
tomer may resume normal driving conditions.
Always follow the "WORK FLOW" (Refer to AT-44).
AT-7
PRECAUTIONS
Service Notice or Precautions (Cont'd)
The SELF-DIAGNOSIS results will be as follows:
The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
EURO-OBD SELF-DIAGNOSIS NLAT0004S04
+ CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the SPORT indicator lamp. Refer to the table on AT-22 for the indicator used to dis-
play each self-diagnostic result.
+ The self-diagnostic results indicated by the MI are automatically stored in both the ECM and TCM memo-
ries.
Always perform the procedure "HOW TO ERASE DTC" on AT-19 to complete the repair and avoid
unnecessary blinking of the MI.
For details of EURO-OBD, refer to EC section ("ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION").
+ Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to EL section, "Description", "HARNESS CONNEC-
TOR".
Wiring Diagrams and Trouble Diagnoses NLAT0005
When you read wiring diagrams, refer to the following:
+ "HOW TO READ WIRING DIAGRAMS" in GI section
+ "POWER SUPPLY ROUTING" for power distribution circuit in EL section
When you perform trouble diagnoses, refer to the following:
+ "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
+ "HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT" in GI section
AT-8
PREPARATION
Special Service Tools
Special Service Tools NLAT0006
Tool number
Description
Tool name
ST2505S001 Measuring line pressure and governor pressure
Oil pressure gauge set
1 ST25051001
Oil pressure gauge
2 ST25052000
Hose
3 ST25053000
Joint pipe
4 ST25054000
Adapter
5 ST25055000
Adapter NT097
KV31103000 Installing differential side oil seal
Drift (Use with ST35325000)
a: 59 mm (2.32 in) dia.
b: 49 mm (1.93 in) dia.
NT105
ST35325000 Installing differential side oil seal
Drift (Use with KV31103000)
a: 215 mm (8.46 in)
b: 25 mm (0.98 in) dia.
c: M12 x 1.5P
NT417
AT-9
CVT FLUID
Checking CVT Fluid
Checking CVT Fluid NLAT0243
1. Check for fluid leakage.
SMA146B
2. Check fluid level.
Fluid level should be check using "HOT" range on A/T fluid
level gauge at fluid temperatures of 50 to 80◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo