Nissan X-Trail 32. Instruction — part 2136
TM-502
< SYSTEM DESCRIPTION >
[CVT: RE0F10G]
SYSTEM
SELECT CONTROL
SELECT CONTROL : System Description
INFOID:0000000010622738
SYSTEM DIAGRAM
DESCRIPTION
Based on accelerator pedal angle, engine speed, primary pulley speed, and the input speed, the optimum
operating pressure is set to reduce impact of a selector lever operation while shifting from “N” (“P”) to “D” (“R”)
position.
LOCK-UP CONTROL
JSDIA5273GB
JSDIA3711GB
SYSTEM
TM-503
< SYSTEM DESCRIPTION >
[CVT: RE0F10G]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
LOCK-UP CONTROL : System Description
INFOID:0000000010622739
SYSTEM DIAGRAM
DESCRIPTION
• Controls for improvement of the transmission efficiency 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 clutch control valve is switched by the torque converter
clutch solenoid valve with the signal from TCM. This controls 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 solenoid 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 solenoid 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.
ECO MODE SYSTEM
ECO MODE SYSTEM : System Description
INFOID:0000000010622740
• Driving mode that selects the shift schedule with priority on fuel economy which gives low engine revolution.
• For details on ECO mode control, refer to
DMS-7, "ECO MODE CONTROL : System Description"
• The gear shift line is not changed with the control mode change for the following conditions:
- When the selector lever is in “M” position.
FAIL-SAFE
JSDIA5314GB
TM-504
< SYSTEM DESCRIPTION >
[CVT: RE0F10G]
SYSTEM
If a malfunction occurs in the system of CVT during ECO mode, the ECO mode indicator turns OFF and the
control switches to the normal mode control.
STOP/START SYSTEM
STOP/START SYSTEM : System Description
INFOID:0000000010632035
• In the stop/start system, ECM performs integrated control based on the information from control units, sen-
sors and switches. For information, refer to
EC-856, "STOP/START SYSTEM : System Description (CVT
.
• stop/start system operation OK is evaluated based on signals from sensors and switches.
• When stop/start system operation OK is determined, stop/start enable OK signal is sent to ECM through
CAN communication.
• stop/start readiness signal is received from ECM through CAN communication and the electric oil pump is
driven based on the signal.
• The electric oil pump relay is turned ON to prepare operation of the electric oil pump.
• The electric oil pump is driven in duty control.
STOP/START OPERATION PERMISSION CONDITION EVALUATED BY TCM
When TCM detects the vehicle status and stop/start system operation OK is determined, stop/start enable sig-
nal is sent to ECM through CAN communication.
TCM INDICATION CHARACTERISTICS
Item
Description
Permission conditions
Transmission range switch
Selector lever position
Other than “R” position
G sensor
Gradient
±
14%
CVT fluid temperature sensor
CVT fluid temperature
25 – 110
°
C
Electric oil pump
Malfunction
Normal
Interval time
5 seconds or more from cancellation of previous stop/
start system operation
Secondary pressure
Control oil pressure
0.03 MPa or more
TCM indication signal (Duty)
Condition
0 – 5%
Disconnection or battery short-circuit
5 – 15%
Indicating stop of electric oil pump
15 – 85%
Indicating operation of electric oil pump
85 – 95%
Indicating operation of electric oil pump (Maximum power)
95 – 100%
Short to ground
SYSTEM
TM-505
< SYSTEM DESCRIPTION >
[CVT: RE0F10G]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
TIME CHART
INFORMATION DISPLAY (COMBINATION METER)
INFORMATION DISPLAY (COMBINATION METER) : Shift Position Indicator
INFOID:0000000010622741
PURPOSE
The shift position indicator displays the shift position of transmission.
JSDIA5443GB
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