1999 NISSAN PRIMERA Electronic Repair Manual

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Page 9 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual The blinking of the CVT or SPORT indicator lamp for about 8 seconds will appear only once and be cleared.
The customer may resume normal driving conditions.
Always follow the ªWORK FLOWº (Refer to A

Page 10 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Special Service ToolsNCAT0006
Tool number
Tool nameDescription
ST2505S001
Oil pressure gauge set
1 ST25051001
Oil pressure gauge
2 ST25052000
Hose
3 ST25053000
Joint pipe
4 ST25054000
Adapter
5 ST2505

Page 11 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual CVT Electrical Parts LocationNCAT0008
SAT671J Front
TCMIndicator C/USteering column
Throttle position sensor and
throttle position switch
SPORT indicator lamp
CVT indicator lamp
Manual mode switch SPO

Page 12 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Circuit DiagramNCAT0009
YAT250
OVERALL SYSTEM
Circuit Diagram
AT-10

Page 13 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Cross-sectional View Ð RE0F06ANCAT0011
SAT668J Primary pulley
Steel belt
Sun gear
Side cover
Internal gear
Secondary pulley
Final gearDifferential caseSpeedometer drive gear Idler gear Reduction gear

Page 14 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual Control System=NCAT0014OUTLINENCAT0014S01The CVT senses vehicle operating conditions through various sensors. It always controls the optimum shift
position and reduces shifting and lock-up shocks.
SEN

Page 15 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual CONTROL SYSTEMNCAT0014S02
NAT310 WheelDifferential
gearFinal gearBelt and
PulleyForward and
reverse
changeTorque
converterEngine Transaxle
Oil pump
Oil pressure control Parking
system
Control device
S

Page 16 of 2267

NISSAN PRIMERA 1999 Electronic Repair Manual TCM FUNCTION=NCAT0014S03The function of the TCM is to:
IReceive input signals sent from various switches and sensors.
IDetermine required line pressure, shifting point and lock-up operation.
ISend req

TCM FUNCTION=NCAT0014S03The function of the TCM is to:
IReceive input signals sent from various switches and sensors.
IDetermine required line pressure, shifting point and lock-up operation.
ISend required output signals to the step motor and the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCMNCAT0014S04
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.
Indicator control unit*1Sends a signal to the TCM operation condition of the manual mode switch
in control device.
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.
CVT indicator (warning) lamp*2 Shows TCM faults, when CVT control components malfunction.
SPORT indicator lamp*3 Shows the operation condition of the SPORT mode switch. *3
Indicator control unit *1Receives the information of gear position on manual mode from TCM, and
sends a signal to indicator.
*1: Hyper CVT M6 models only
*2: Hyper CVT M6 models
*3: Hyper CVT models
OVERALL SYSTEM
Control System (Cont'd)
AT-14

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