oil temperature NISSAN TEANA 2014 Service Manual

SR-20
< REMOVAL AND INSTALLATION >
SIDE CURTAIN AIR BAG MODULE
• For removing/installing the side curtain air bag moduleharness connector, insert a thin screwdriver wrapped in
tape into the notch, lift the lock and remove the harness
connector as shown.
• Install the harness connector with the lock raised, and push the lock into the harness connector as shown.
• After installing the harness connector, check that the lock
is pushed in securely.
4. Remove the side curtain air bag module bolts, then remove the side curtain air bag module. CAUTION:
• Replace the side curtain air bag module if it has been dropped or sustained an impact.
• Do not strike the side curtain air bag module.
• Do not insert any foreign objects (screwdriver , etc.) into the side curtain air bag module.
• Do not disassemble the side curtain air bag module.
• Do not expose the side curtain air bag module to temperatures exceeding 93 °C (200 °F).
• Do not allow oil, grease, detergent or water to co me in contact with the side curtain air bag mod-
ule.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Route the side curtain air bag module front tether (1) and attach the double stick tape (A) as shown.
: Front
• Do not damage the harness while installi ng the side curtain air bag module.
• After installation is complete, check that no syst em malfunction is detected causing the air bag
warning lamp to illuminate.
• If a malfunction is indicated by the air bag warnin g lamp after repair or replacement of the malfunc-
tioning parts, perform the SRS final check. Refer to SRC-17, "SRS Final Check"
.
PHIA0953J
ALHIA0263ZZ
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SIDE AIR BAG MODULESR-21
< REMOVAL AND INSTALLATION >
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SIDE AIR BAG MODULE
Removal and InstallationINFOID:0000000009463076
The side air bag module is part of the front seatback as sembly. For removal and installation of the side air bag
module. Refer to SE-50, "DRIVER SIDE : Side air bag module"
(driver front seat) or SE-62, "PASSENGER
SIDE : Side air bag module" (passenger front seat).
CAUTION:
• Always work from the side or back of the fron t seatback assembly, do not work in front of seat.
• Do not use air tools or electric tool s for servicing the front seat assembly.
• Do not insert any objects into the side air bag module.
• Do not attempt to disassemble the side air bag module.
• Do not expose the side air bag module to temperatures exceeding 93 °C (200 °F).
• Do not expose the side air bag module to any oil, grease, detergent or water.
NOTE:
• If the vehicle has been involved in a collision and t he side air bag module has deployed, the front seatback
assembly must be replaced.
• For side air bag module removal and installation, seatback trim and seatback pad must be removed.
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POWER STEERING OIL PUMPST-19
< BASIC INSPECTION >
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POWER STEERING OIL PUMP
InspectionINFOID:0000000009461254
RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal be fore starting the following procedure.
1. Connect the Tool between oil pump discharge connector and high-pressure hose. Bleed air from the hydraulic circuit while
opening valve fully. Refer to ST-30, "Air Bleeding Hydraulic Sys-
tem".
2. Start engine. Run engine until power steering fluid temperature reaches 50 ° - 80 °C (122 ° - 176 °F).
CAUTION:
• Leave the valve of the hydraulic pressure gauge fully open while starting and ru nning engine. If engine is
started with the valve closed, th e hydraulic pressure in oil
pump goes up to the relief pressure along with unusual
increase of fluid temperature.
• Be sure to keep hose clear of belts and other parts when engine is started.
3. Fully close the Tool valve with engine at idle and measure the relief oil pressure.
CAUTION:
Do not keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Replace oil pump if the relief oil pressure is outside the standard.
5. After inspection, disconnect the Tool from hydraul ic circuit, then add fluid and bleed air. Refer to ST-30,
"Air Bleeding Hydraulic System".
Tool numbers : KV48103500 (J-26357)
: KV48102500 (J-33914)
Relief oil pressure : Refer to ST-48, "Power Steering
Oil Pump"
SGIA0915E
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COMPONENT PARTSTM-17
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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• The output speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating body
speed which is “The higher the rotating body speed is, t he faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : Input Speed SensorINFOID:0000000009463967
• The input speed sensor is installed to the front side of transaxle case.
• The input speed sensor detects input shaft speed.
• The input speed sensor generates an ON-OFF pulse signal according to the rotating body speed. TCM
judges the rotating body speed from the pulse signal.
CVT CONTROL SYSTEM : CVT Fluid Temperature SensorINFOID:0000000009463968
• The CVT fluid temperature sensor is installed to control valve.
• The CVT fluid temperature sensor detects CVT fluid temperature in oil pan.
JSDIA1824GB
JSDIA1824GB
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TM-28
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
STRUCTURE AND OPERATION
FLUID COOLER & FLUID WARMER SYSTEM : System Description
INFOID:0000000009463985
CVT FLUID COOLER SCHEMATIC
COMPONENT DESCRIPTION
CVT Oil Warmer
• The CVT oil warmer (1) is installed on the front part of transaxle
assembly.
• When engine is started while engine and CVT are cold, engine coolant temperature rises more quickly than CVT fluid tempera-
ture. CVT oil warmer is provided with two circuits for CVT and
engine coolant respectively so that warmed engine coolant warms
CVT quickly. This helps shorten CVT warming up time, improving
fuel economy.
• A cooling effect is obtained when CVT fluid temperature is high.
Heater Thermostat
• The heater thermostat (1) is insta lled on the front part of transaxle
assembly.
• The heater thermostat open and close with set temperature.
SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : System DescriptionINFOID:0000000009463986
The shift lever cannot be shifted from the “P” positi on unless the brake pedal is depressed while the ignition
switch is set to ON. The shift lock is unlocked by turn ing the shift lock solenoid ON when the ignition switch is
set to ON, the park position switch is turned ON (selec tor lever is in “P” position), and the stop lamp switch is
turned ON (brake pedal is depressed) as shown in the oper ation chart in the figure. Therefore, the shift lock
solenoid receives no ON signal and the shift lock remains locked if all of the above conditions are not fulfilled.
However, selector operation is allowed if the shift lock release button is pressed.
JSDIA3787GB
JSDIA2280ZZ
JSDIA2585ZZ
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TM-34
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
SYSTEM
CVT CONTROL SYSTEM : Protection Control
INFOID:0000000009463989
The TCM becomes the protection control status temporar ily to protect the safety when the safety of TCM and
transmission is lost. It automatically returns to the normal status if the safety is secured.
The TCM has the following protection control.
CONTROL FOR WHEEL SPIN
TORQUE IS REDUCED WHEN DRIVING WITH THE REVERSE GEAR
CONTROL WHEN FLUID TEMPERATURE IS HIGH
P2813 • Selector shock is large
•Start is slow
• Acceleration is slow
• Vehicle speed is not increased When a malfunction occurs on the low oil pressure side
• Selector shock is large When a malfunction occurs on the high oil pressure side
P2814 • Selector shock is large —
P2815 • Selector shock is large —
U0073 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U0100 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U0140 • Not changed from normal driving —
U0141 • Not changed from normal driving —
U0155 • Not changed from normal driving —
U0300 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U1000 • Not changed from normal driving — U1117 • Not changed from normal driving — DTC Vehicle behavior Conditions of vehicle
Control
When a wheel spin is detected, the engine output and gear ratio are limited and the line pressure is increased.
Limits engine output when a wheel spin occurs in any of right and left drive wheels.
Vehicle behavior in
control If the accelerator is kept depressing during wheel spin, the engine revolution and vehicle speed are limited to
a certain degree.
Normal retu rn condi-
tion Wheel spin convergence returns the control to the normal control.
Control Engine output is controlled according to a vehicle speed while reversing the vehicle.
Vehicle behavior in
control Power performance may be lowered while reversing the vehicle.
Normal retu rn condi-
tion Torque returns to normal by positioning the selector lever in a range other than “R” position.
Control
When the CVT fluid temperature is high, the gear shift permission maximum revolution and the maximum
torque are reduced than usual to prevent increase of the oil temperature.
Vehicle behavior in
control Power performance may be lowered, compared to normal control.
Normal retu rn condi-
tion The control returns to the normal control when CVT fluid temperature is lowered.
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SYSTEMTM-35
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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REVERSE PROHIBIT CONTROL
LINE PRESSURE CONTROL
LINE PRESSURE CONTROL : System DescriptionINFOID:0000000009463990
SYSTEM DIAGRAM
DESCRIPTION
Highly accurate line pressure control (secondary pressure control) reduces friction for improvement of fuel
economy.
Normal Oil Pressure Control
Appropriate line pressure and secondary pressure suitable for driving condition are determined based on the
accelerator pedal position, engine speed, primary pulley (input) speed, secondary pulley (output) speed, vehi-
cle speed, input torque, stop lamp switch signal, transmission range switch signal, lock-up signal, power volt-
age, target shift ratio, oil temperature, oi l pressure, and overdrive control switch signal.
Secondary Pressure Feedback Control
In normal oil pressure control and oil pressure control in shifting, highly accurate secondary pressure is deter-
mined by detecting the secondary pressure using an oil pressure sensor and by feedback control.
SHIFT CONTROL
Control The reverse brake is controlled to avoid becoming engaged when the selector lever is set in “R” position while
driving in forward direction at more than the specified speed.
Vehicle behavior in
control If the selector lever is put at “R” position when driving with the forward gear, the gear becomes neutral, not
reverse.
Normal return condi-
tion The control returns to normal control when the vehicle is driven at low speeds. (The reverse brake becomes
engaged.)
JSDIA3781GB
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SYSTEMTM-39
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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DESCRIPTION
• Controls for improvement of the transmission effici ency by engaging the torque converter clutch in the
torque converter and eliminating slip of the converter. Achieves comfortable driving with slip control of the
torque converter clutch.
• The oil pressure feed circuit for the torque converter clutch piston chamber is connected to the torque con-
verter clutch control valve. The torque converter clut ch control valve is switched by the torque converter
clutch solenoid valve with the signal from TCM. This contro ls the oil pressure circuit, which is supplied to the
torque converter clutch piston chamber, to the release side or engagement side.
• If the CVT fluid temperature is low or the vehicle is in fail-safe mode due to malfunction, lock-up control is
prohibited.
Lock-up engagement
In lock-up engagement, the torque converter clutch solenoi d valve makes the torque converter clutch control
valve locked up to generate the lock-up apply pressure. This pushes the torque converter clutch piston for
engagement.
Lock-up release condition
In lock-up release, the torque converter clutch solenoi d valve makes the torque converter clutch control valve
non-locked up to drain the lock-up apply pressure. This does not engage the torque converter clutch piston.
JSDIA3783GB
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DIAGNOSIS SYSTEM (TCM)TM-45
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
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SEC REV SENSOR (rpm) ×Displays the secondary pulley speed calculated from the
pulse signal of the output speed sensor.
ENG SPEED SIG (rpm) ×Displays the engine speed received through CAN com-
munication.
SEC PRESSURE SEN (V) ×Displays the signal voltage of the secondary pressure-
sensor.
PRI PRESSURE SEN (V) ×Displays the signal voltage of the primary pressuresen-
sor.
ATF TEMP SEN (V) ×Displays the signal voltage of the CVT fluid temperature
sensor.
G SENSOR* (G) ×Displays the signal voltage of the G sensor.
VIGN SEN (V) ×Displays the battery voltage applied to TCM.
PVING VOLT (V) ×Displays the backup voltage of TCM.
VEHICLE SPEED (km/h or mph) ×Displays the vehicle speed recognized by TCM.
INPUT REV (rpm) Displays the input shaft speed of CVT recognized by
TCM.
PRI SPEED (rpm) ×Displays the primary pulley speed recognized by TCM.
SEC SPEED (rpm) Displays the secondary pulley speed recognized by
TCM.
ENG SPEED (rpm) ×Displays the engine speed recognized by TCM.
SLIP REV (rpm) ×Displays the speed difference between the input shaft
speed of CVT and the engine speed.
PULLEY GEAR RATIO ×Displays the pulley gear ratio calculated from primary
pulley speed/secondary pulley speed.
G SPEED* (G) Displays the acceleration and deceleration speed of the
vehicle calculated from vehicle speed change.
ACCEL POSI SEN 1 (deg) ××Displays the estimated throttle position received through
CAN communication.
VENG TRQ (Nm) ×Display the engine torque recognized by TCM.
PRI TRQ (Nm) Display the input shaft torque of CVT.
TRQ RTO Display the torque ratio of torque converter.
SEC PRESSURE (MPa) Displays the secondary pressure calculated from the sig-
nal voltage of the secondary pressure sensor.
PRI PRESSURE (MPa) Displays the primary pressure calculated from the signal
voltage of the primary pressure sensor.
FLUID TEMP ( °C or °F) ×Displays the CVT fluid temperature calculated from the
signal voltage of the CVT fluid temperature sensor.
DSR REV (rpm) Displays the target primary pulley speed calculated from
processing of gear shift control.
TGT PLLY GR RATIO Displays the target gear ratio of the pulley from process-
ing of gear shift control.
LU PRS (MPa) Displays the target oil pressure of the torque converter
clutch solenoid valve calculated from oil pressure pro-
cessing of gear shift control.
LINE PRS (MPa) Displays the target oil pressure of the line pressure sole-
noid valve calculated from oil pressure processing of
gear shift control.
Monitored item (Unit)
Monitor item selection
Remarks
ECU IN-
PUT SIG-
NALS MAIN SIG-
NALS
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TCM
TM-57
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F10D]
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P0713 •Start is slow
• Acceleration is slow Engine coolant temperature when engine start:
Te m p . ≥ 10 °C (50 °F)
• Selector shock is large
•Start is slow
• Acceleration is slow Engine coolant temperature when engine start:
− 35 °C ( −31 °F) ≤ Te m p . < 1 0 °C (50 °F)
• Selector shock is large
•Start is slow
• Acceleration is slow Engine coolant temperature when engine star:
Te m p . < −35 °C ( −31 °F)
P0715 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0717 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0740 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0743 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0744 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0746 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0776 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed
• Vehicle speed is not increased When a malfunction occurs on the low oil pressure side
• Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed When a malfunction occurs on the high oil pressure side
P0778 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0779 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed
P0841 • Not changed from normal driving
P0847 • Not changed from normal driving —
P0848 • Not changed from normal driving —
P084C • Not changed from normal driving
P084D • Not changed from normal driving
P0863 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
DTC Vehicle behavior Conditions of vehicle
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM