2001 NISSAN ALMERA N16 Electronic Repair Manual

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Page 1209 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ª11º Position=NJAT0013S0202
+Forward clutch
+Forward one-way clutch
+Overrun clutch
+Low and reverse brakeAs overrun clutch engages, rear internal gear is locked by the operation of low and
reverse

Page 1210 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ªD1º and ª21º Positions=NJAT0013S0203
+Forward one-way clutch
+Forward clutch
+Low one-way clutchRear internal gear is locked to rotate counterclockwise because of the functioning of
these three c

Page 1211 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ªD2º, ª22º and ª12º Positions=NJAT0013S0204
+Forward clutch
+Forward one-way
clutch
+Brake bandRear sun gear drives rear planetary carrier and combined front internal gear. Front internal gear n

Page 1212 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ªD3º Position=NJAT0013S0205
+High clutch
+Forward clutch
+Forward one-way
clutchInput power is transmitted to front planetary carrier through high clutch. And front planetary carrier is
connected to

Page 1213 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ªD4º (OD) Position=NJAT0013S0206
+High clutch
+Brake band
+Forward clutch(Does not affect power
transmission)Input power is transmitted to front carrier through high clutch.
This front carrier turns

Page 1214 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual ªRº Position=NJAT0013S0207
+Reverse clutch
+Low and reverse brakeFront planetary carrier is stationary because of the operation of low and reverse
brake.
Input power is transmitted to front sun gear

Page 1215 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual Control System=NJAT0014OUTLINENJAT0014S01The automatic transaxle senses vehicle operating conditions through various switches and sensors. It always
controls the optimum shift position and reduces shi

Page 1216 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual TCM FUNCTION=NJAT0014S03The function of the TCM is to:
+Receive input signals sent from various switches and sensors.
+Determine required line pressure, shifting point, lock-up operation, and engine b

TCM FUNCTION=NJAT0014S03The function of the TCM is to:
+Receive input signals sent from various switches and sensors.
+Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
+Send required output signals to the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCMNJAT0014S04
Sensors, switches and solenoid
valvesFunction
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.
A/T fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM.
Revolution sensor Detects output shaft rpm and sends a signal to TCM.
Vehicle speed sensorUsed as an auxiliary vehicle speed sensor. Sends a signal when revolution
sensor (installed on transmission) malfunctions.
Overdrive control switchSends a signal, which prohibits a shift to ªD
4º (overdrive) position, to the
TCM.
Stop lamp switch Releases lock-up system when depressing pedal in lock-up condition.
OutputShift solenoid valve A/BSelects shifting point suited to driving conditions 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.
Overrun clutch solenoid valveControls an ªengine brakeº effect suited to driving conditions in relation to a
signal sent from TCM.
O/D OFF indicator lamp Shows TCM faults, when A/T control components malfunction.
Control MechanismNJAT0015LINE PRESSURE CONTROLNJAT0015S01TCM has various line pressure control characteristics to match the
driving conditions.
An ON-OFF duty signal is sent to the line pressure solenoid valve
based on TCM characteristics.
Hydraulic pressure on the clutch and brake is electronically con-
trolled through the line pressure solenoid valve to accommodate
engine torque. This results in smooth shift operation.
OVERALL SYSTEM
Control System (Cont'd)
AT-30

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