2014 NISSAN TEANA Service Manual

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Page 4249 of 4801

NISSAN TEANA 2014 Service Manual
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 wh

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.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

Page 4250 of 4801

NISSAN TEANA 2014 Service Manual
SYSTEMTM-35
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
REVERSE PROHIBIT CONTROL
LINE PRESSURE CONTROL
LINE PRESSURE CONTROL : System DescriptionINFOID:0000000009463990
SY

Page 4251 of 4801

NISSAN TEANA 2014 Service Manual
TM-36
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
SYSTEM
SHIFT CONTROL : System Description
INFOID:0000000009463991
SYSTEM DIAGRAM
DESCRIPTION
To select the gear ratio that can give the driving force to m

Page 4252 of 4801

NISSAN TEANA 2014 Service Manual
SYSTEMTM-37
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
Gear shifting is performed in all shifting ranges from the lowest to the
highest gear ratio.
D Position (O/D OFF)

Page 4253 of 4801

NISSAN TEANA 2014 Service Manual
TM-38
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
SYSTEM
SELECT CONTROL : System Description
INFOID:0000000009463992
SYSTEM DIAGRAM
DESCRIPTION
Based on accelerator pedal angle, engine speed, prim ary pull

Page 4254 of 4801

NISSAN TEANA 2014 Service Manual
SYSTEMTM-39
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
DESCRIPTION
• Controls for improvement of the transmission effici ency by engaging the torque converter clutch in

Page 4255 of 4801

NISSAN TEANA 2014 Service Manual
TM-40
< SYSTEM DESCRIPTION >[CVT: RE0F10D]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOST
IC (OBD) SYSTEM
DescriptionINFOID:0000000009463994
This is an on board diagnosis system which records dia

Page 4256 of 4801

NISSAN TEANA 2014 Service Manual
DIAGNOSIS SYSTEM (TCM)TM-41
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
DIAGNOSIS SYSTEM (TCM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1 Tr ip Detection Diagnosis and

DIAGNOSIS SYSTEM (TCM)TM-41
< SYSTEM DESCRIPTION > [CVT: RE0F10D]
C
EF
G H
I
J
K L
M A
B
TM
N
O P
DIAGNOSIS SYSTEM (TCM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1 Tr ip Detection Diagnosis and 2 Trip Detection Diagno-
sis
INFOID:0000000009463996
NOTE:
“Start the engine and turn OFF the ignition switch after warm-up.” This is defined as 1 trip.
1 TRIP DETECTION DIAGNOSIS
When initial malfunction is detected, TCM memorize s DTC. In these diagnoses, some illuminate MIL and
some do not. Refer to TM-60, "DTC Index"
.
2 TRIP DETECTION DIAGNOSIS
When initial malfunction is detected, TCM memorizes DTC of the 1st trip. MIL does not light at this stage. <1
trip>
If the same malfunction is detected again in next drivi ng, TCM memorizes DTC. When DTC is memorized, MIL
lights. <2 trip>
“Trip” of the “2 trip detection diagnosis” indicates the driving mode that executes self-diagnosis during driving.
×: Check possible —: Check not possible
DIAGNOSIS DESCRIPTION : DTC and DTC of 1st TripINFOID:0000000009463997
2 TRIP DETECTION DIAGNOSIS THAT ILLUMINATES MIL
• The DTC number of the 1st trip is the same as the DTC number.
• When a malfunction is detected at the 1st trip, TCM memo rizes DTC of the 1st trip. MIL does not light at this
stage. If the same malfunction is not detected at t he 2nd trip (conforming to necessary driving conditions),
DTC at the 1st trip is erased from TCM. If the same malfunction is detected at the 2nd trip, TCM memorizes
DTC and MIL lights at the same time.
• The DTC of the 1st trip is specified in Service $01 of SAE J1979/ISO 15031-5. Since detection of DTC at the
1st trip does not illuminate MIL, warning for a problem is not given to a driver.
• For procedure to delete DTC and 1st trip DTC from TCM, refer to TM-43, "CONSULT Function"
.
• If DTC of the 1st trip is detected, it is necessary to check the cause according to the “Diagnosis flow”. Refer
to TM-77, "Flowchart of Trouble Diagnosis"
.
DIAGNOSIS DESCRIPTION : Malf unction Indicator Lamp (MIL)INFOID:0000000009463998
• TCM not only detects DTC, but also sends the MI L signal to ECM through CAN communication. ECM sends
the MIL signal to the combination meter through CAN communication according to the signal, and illumi-
nates MIL.
• For malfunction indicator lamp (MIL) description, refer to EC-74, "DIAGNOSIS DESCRIPTION : Malfunction
Indicator Lamp (MIL)".
DIAGNOSIS DESCRIPTION : Counter SystemINFOID:0000000009463999
RELATION BETWEEN DTC AT 1ST TRIP/DTC/MIL AND DRIVING CONDITIONS (FOR 2 TRIP DE-
TECTION DIAGNOSIS THAT ILLUMINATES MIL)
• When initial malfunction is detected, TCM memorizes DT C of the 1st trip. MIL does not light at this stage.
• If the same malfunction is detect ed at the 2nd trip, TCM memorizes DTC and MIL lights at the same time.
• Then, MIL goes after driving the vehicle for 3 tr ips under “Driving condition B” without malfunction.
• DTC is displayed until 40 trips of “Driving condition A” are satisfied without detecting the same malfunction.
DTC is erased when 40 trips are satisfied.
Item DTC at the 1st trip DTC MIL
Display at the 1st trip Display at the
2nd trip Display at the
1st trip Display at the
2nd trip Illumination at
the 1st trip Illumination at
the 2nd trip
1 trip detection diagnosis
(Refer to TM-60, "DTC Index"
) ——
×— ×—
2 trip detection diagnosis
(Refer to TM-60, "DTC Index"
) ×
—— ×— ×
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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