2001 NISSAN ALMERA TINO torque

Wiring Diagram - AT - FTS ........................................75
Diagnostic Procedure ................................................77
DTC P0715 PRIMARY SPEED SENSOR.....................79
Description .................................................................79
Wiring Diagram - AT - PSSA/T ..................................80
Diagnostic Procedure ................................................82
Component Inspection ...............................................83
DTC P0720 VEHICLE SPEED SENSOR
(SECONDARY SPEED SENSOR)................................84
Description .................................................................84
Wiring Diagram - AT - VSSA/T ..................................86
Diagnostic Procedure ................................................88
Component Inspection ...............................................89
DTC P0725 ENGINE SPEED SIGNAL.........................90
Description .................................................................90
Wiring Diagram - AT - ENGSS ..................................91
Diagnostic Procedure ................................................92
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE........................................................94
Description .................................................................94
Wiring Diagram - AT - TCV........................................96
Diagnostic Procedure ................................................97
Component Inspection ...............................................98
DTC P0745 LINE PRESSURE SOLENOID VALVE.....99
Description .................................................................99
Wiring Diagram - AT - LPSV....................................101
Diagnostic Procedure ..............................................102
Component Inspection .............................................103
DTC P1705 THROTTLE POSITION SENSOR...........104
Description ...............................................................104
Wiring Diagram - AT - TPS ......................................106
Diagnostic Procedure ..............................................108
Component Inspection ............................................. 111
DTC P1777 STEP MOTOR - CIRCUIT....................... 112
Description ............................................................... 112
Wiring Diagram - AT - STM ..................................... 114
Diagnostic Procedure .............................................. 115
Component Inspection ............................................. 116
DTC P1778 STEP MOTOR - FUNCTION................... 117
Description ............................................................... 117
Diagnostic Procedure .............................................. 118
DTC P1791 LINE PRESSURE SENSOR.................... 119
Description ............................................................... 119
Wiring Diagram - AT - LPS ......................................121
Diagnostic Procedure ..............................................123
Component Inspection .............................................124
CVT SAFE FUNCTION................................................125
Description ...............................................................125
Diagnostic Procedure ..............................................125EXCEPT FOR EURO-OBD
VEHICLE SPEED SENSOR CVT (SECONDARY
SPEED SENSOR)........................................................126
Description ...............................................................126
Wiring Diagram - AT - VSSA/T ................................128
Diagnostic Procedure ..............................................130
PRIMARY SPEED SENSOR.......................................132
Description ...............................................................132
Wiring Diagram - AT - VSSMTR ..............................134
Diagnostic Procedure ..............................................136
THROTTLE POSITION SENSOR................................137
Description ...............................................................137
Wiring Diagram - AT - TPS ......................................139
Diagnostic Procedure ..............................................141
Component Inspection .............................................145
STEPPING MOTOR - CIRCUIT...................................146
Description ...............................................................146
Wiring Diagram - AT - STM .....................................147
Diagnostic Procedure ..............................................148
Component Inspection .............................................149
STEP MOTOR - FUNCTION.......................................150
Description ...............................................................150
Diagnostic Procedure ..............................................150
LINE PRESSURE SENSOR........................................151
Description ...............................................................151
Wiring Diagram - AT - LPS ......................................153
Diagnostic Procedure ..............................................155
Component Inspection .............................................156
LINE PRESSURE SOLENOID VALVE.......................157
Description ...............................................................157
Wiring Diagram - AT - LPSV....................................159
Diagnostic Procedure ..............................................160
Component Inspection .............................................163
TORQUE CONVERTER CLUTCH SOLENOID
VALVE..........................................................................164
Description ...............................................................164
Wiring Diagram - AT - TCV......................................166
Diagnostic Procedure ..............................................167
Component Inspection .............................................169
CVT FLUID TEMPERATURE SENSOR CIRCUIT......170
Description ...............................................................170
Wiring Diagram - AT - FTS ......................................172
Diagnostic Procedure ..............................................174
ENGINE SPEED SIGNAL............................................176
Description ...............................................................176
Wiring Diagram - AT - ENGSS ................................177
Diagnostic Procedure ..............................................178
CONTROL UNIT (RAM), CONTROL UNIT (ROM).....180
Description ...............................................................180
Diagnostic Procedure ..............................................181
CONTENTS(Cont'd)
AT-2

AAT470A
+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.
MEF040DA
+Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions prop-
erly or not. (See page AT-58.)
SAT652J
+After performing each TROUBLE DIAGNOSIS, perform
ªDTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DUREº.
The DTC should not be displayed in the ªDTC CONFIRMA-
TION PROCEDUREº if the repair is completed.
+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 ªChanging CVT Fluidº in
the MA section when changing CVT fluid.
Service Notice or PrecautionsNLAT0004FAIL-SAFENLAT0004S01The 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 ªLº or ªDº. The customer may com-
plain of sluggish or poor acceleration.
When the ignition key is turned ªONº following Fail-Safe operation, SPORT indicator lamp blinks for about 8
seconds. [For ªTCM SELF-DIAGNOSTIC PROCEDURE (No Tools)º, 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 ªWORK FLOWº (Refer to AT-44).
PRECAUTIONS
Precautions (Cont'd)
AT-7

Control System=NLAT0014OUTLINENLAT0014S01The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
SWITCHES AND SENSORS
cTCM
cACTUATORS
PNP switch
Throttle position sensor
Closed throttle position switch
Wide open throttle position
switch
Engine speed signal
CVT fluid temperature sensor
CVT fluid pressure sensor
Primary speed sensor
Secondary speed sensor
Stop lamp switch
SPORT mode switch
ABS control unitShift control
Line pressure control
Lock-up control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
control
Duet-EA control
On board diagnosisStep motor
Torque converter clutch solenoid
valve
Line pressure solenoid valve
SPORT indicator lamp
OVERALL SYSTEM
Control System
AT-15

TCM FUNCTION=NLAT0014S03The function of the TCM is to:
+Receive input signals sent from various switches and sensors.
+Determine required line pressure, shifting point and lock-up operation.
+Send required output signals to the step motor and the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCMNLAT0014S04
Switches, sensors and actuators Function
InputPNP switch Detects select lever position and sends a signal to TCM.
Throttle position sensor Detects throttle valve position and sends a signal to TCM.
Closed throttle position switch Detects throttle valve's fully-closed position and sends a signal to TCM.
Wide open throttle position switchDetects a throttle valve position of greater than 1/2 of full throttle and
sends a signal to TCM.
Engine speed signal From ECM.
CVT fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM.
CVT fluid pressure sensor Detects transmission fluid pressure and sends a signal to TCM.
Primary speed sensor Detects primary pulley rpm and sends a signal to TCM.
Secondary speed sensor Detects secondary pulley rpm and sends a signal to TCM.
Stop lamp switchSends a signal to the TCM relaying the operation condition of the brake
pedal.
SPORT mode switchSends a signal to the TCM relaying the operation condition of the SPORT
mode switch.
ABS control unit Sends a signal to the TCM operation condition of the ABS.
OutputStep motor Regulates pulley position in relation to a signal sent from TCM.
Line pressure solenoid valveRegulates (or decreases) line pressure suited to driving conditions in rela-
tion to a signal sent from TCM.
Torque converter clutch solenoid
valveRegulates (or decreases) lock-up pressure suited to driving conditions in
relation to a signal sent from TCM.
SPORT indicator lamp Shows the operation condition of the SPORT mode switch.
OVERALL SYSTEM
Control System (Cont'd)
AT-17

Item DisplayMonitor item
Description Remarks
TCM input
signalsMain sig-
nals
Selector lever position SLCT LVR POSI
ÐX+Selector lever position
data, used for computa-
tion by TCM, is dis-
played.+A specific value used for
control is displayed if fail-
safe is activated due to
error.
Vehicle speed VEHICLE
SPEED
[km/h] or [mph]ÐX+Vehicle speed data,
used for computation
by TCM, is displayed.Ð
Throttle position THROTTLE
POSI
[/8]ÐX+Throttle position data,
used for computation
by TCM, is displayed.+A specific value used for
control is displayed if fail-
safe is activated due to
error.
Line pressure duty LINE PRES
DTY
[%] Ð X+Control value of line
pressure solenoid
valve, computed by
TCM from each input
signal, is displayed.Ð
Torque converter clutch
solenoid valve dutyTCC S/V DUTY
[%]
ÐX+Control value of torque
converter clutch sole-
noid valve, computed
by TCM from each
input signal, is dis-
played.Ð
Self-diagnosis display
lamp
(SPORT indicator lamp)PAT MONI
LAMP
[ON/OFF]ÐX+Control status of
SPORT indicator lamp
is displayed.Ð
Line pressure sensor LINE PRES-
SURE SEN [V] X Ð+Line pressure sensor
signal voltage is dis-
played.Ð
Primary pulley speed sen-
sorI/P PULLY SPD
[rpm]
XX+Primary pulley speed
computed from signal
of primary pulley speed
sensor is displayed.Ð
Secondary pulley speed
sensorO/P PULLY SPD
[rpm]
ÐÐ+Secondary pulley speed
computed from signal
of secondary speed
sensor is displayed.Ð
Stop lamp switch BRAKE SW
[ON/OFF] X Ð+ON/OFF position signal
of stop lamp switch is
displayed.Ð
ABS signal ABS SIGNAL
[ON/OFF]
XÐ+ABS operation signal
(ON/OFF) from ABS
control unit is dis-
played.Ð
CVT ratio CVT RATIO [Ð]
ÐX+Real CVT ratio oper-
ated TCM is displayed.Ð
Step PLY CONT
STEP [step]ÐX+Step motor position is
displayed.Ð
X: Applicable
Ð: Not applicable
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONEURO-OBD
CONSULT-II (Cont'd)
AT-25

SPORT indicator lamp
2nd judgement flicker is longer than others.
SAT439FA
Primary speed sensor circuit is short-circuited or disconnected.
ÞGo to PRIMARY SPEED SENSOR (DTC: 0715), AT-79.3rd judgement flicker is longer than others.
SAT441FA
Throttle position sensor circuit is short-circuited or disconnected.
ÞGo to THROTTLE POSITION SENSOR (DTC: 1705),
AT-104.
4th judgement flicker is longer than others.
SAT443FA
Step motor circuit is short-circuited or disconnected.
ÞGo to STEP MOTOR (DTC: 1777), AT-112.5th judgement flicker is longer than others.
SAT445FA
Line pressure sensor circuit is short-circuited or disconnected.
ÞGo to LINE PRESSURE SENSOR (DTC: 1791), AT-119.
6th judgement flicker is longer than others.
SAT447FA
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
ÞGo to LINE PRESSURE SOLENOID VALVE (DTC: 0745),
AT-99.7th judgement flicker is longer than others.
SAT449FA
Lock up solenoid valve circuit is short-circuited or disconnected.
ÞGo to TORQUE CONVERTER CLUTCH SOLENOID VALVE
(DTC: 0740), AT-94.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONEURO-OBD
CONSULT-II (Cont'd)
AT-29

Item DisplayMonitor item
Description Remarks
TCM input
signalsMain sig-
nals
P/N position switch N POSITION
SW
[ON/OFF]XÐ+ON/OFF state com-
puted from signal of
P/N position SW is dis-
played.Ð
R position switch R POSITION
SW
[ON/OFF]XÐ+ON/OFF state com-
puted from signal of R
position SW is dis-
played.Ð
D position switch D POSITION
SW
[ON/OFF]XÐ+ON/OFF state com-
puted from signal of D
position SW is dis-
played.Ð
Sport mode switch S POSITION
SW
[ON/OFF]XÐ+ON/OFF status, com-
puted from signal of
Sport mode SW, is dis-
played.Ð
L position switch L POSITION
SW
[ON/OFF]XÐ+ON/OFF status, com-
puted from signal of L
position SW, is dis-
played.Ð
Closed throttle position
switchCLOSED
THL/SW
[ON/OFF]XÐ+ON/OFF status, com-
puted from signal of
closed throttle position
SW, is displayed.Ð
Wide open throttle position
switchW/O THRL/
P-SW
[ON/OFF]XÐ+ON/OFF status, com-
puted from signal of
wide open throttle posi-
tion SW, is displayed.Ð
Selector lever position SLCT LVR POSI
ÐX+Selector lever position
data, used for computa-
tion by TCM, is dis-
played.+A specific value used for
control is displayed if fail-
safe is activated due to
error.
Vehicle speed VEHICLE
SPEED
[km/h] or [mph]ÐX+Vehicle speed data,
used for computation
by TCM, is displayed.Ð
Throttle position THROTTLE
POSI
[/8]ÐX+Throttle position data,
used for computation
by TCM, is displayed.+A specific value used for
control is displayed if fail-
safe is activated due to
error.
Line pressure duty LINE PRES
DTY
[%] Ð X+Control value of line
pressure solenoid
valve, computed by
TCM from each input
signal, is displayed.Ð
Torque converter clutch
solenoid valve dutyTCC S/V DUTY
[%]
ÐX+Control value of torque
converter clutch sole-
noid valve, computed
by TCM from each
input signal, is dis-
played.Ð
Self-diagnosis display
lamp
(SPORT indicator lamp)PAT MONI
LAMP
[ON/OFF]ÐX+Control status of
SPORT indicator lamp
is displayed.Ð
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
EXCEPT FOR EURO-OBD
CONSULT-II (Cont'd)
AT-33

SPORT indicator lamp
6th judgement flicker is longer than others.
SAT447FA
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
ÞGo to LINE PRESSURE SOLENOID VALVE, AT-157.7th judgement flicker is longer than others.
SAT449FA
Lock up solenoid valve circuit is short-circuited or disconnected.
ÞGo to TORQUE CONVERTER CLUTCH SOLENOID
VALVE, AT-164.
8th judgement flicker is longer than others.
SAT451FA
CVT fluid temperature sensor is disconnected or TCM power
source circuit is damaged.
ÞGo to CVT FLUID TEMPERATURE SENSOR AND TCM
POWER SOURCE, AT-170.9th judgement flicker is longer than others.
SAT285K
Engine speed signal circuit is short-circuited or disconnected.
ÞGo to ENGINE SPEED SIGNAL, AT-176.
10th judgement flicker is longer than others.
SAT455FA
+When ª4th judgement flickerº and/or ª6th judgement flickerº is
displayed, inspect ªSTEP MOTORº and/or ªLINE PRESSURE
SOLENOID VALVEº.
+When neither ª4th judgement flickerº nor ª6th judgement
flickerº are displayed, replace TCM.
ÞGo to CVT SAFE FUNCTION, AT-125.Flickers as shown below.
SAT457FA
Battery voltage is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors. Ð This is not a problem.)
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION
EXCEPT FOR EURO-OBD
Diagnostic Procedure Without CONSULT-II (Cont'd)
AT-39