PRECAUTIONSTM-55
< PRECAUTION > [CVT: RE0F11A]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012430981
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Procedure without Cowl Top CoverINFOID:0000000012430982
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
Precaution for TCM, Transaxle Asse mbly or Control Valve ReplacementINFOID:0000000012430983
CAUTION:
• To replace TCM, refer to TM-125, "
Description".
• To replace transaxle assembly or control valve, refer to TM-127, "
Description".
Precaution for G Sensor Removal/Installation or ReplacementINFOID:0000000012430984
CAUTION:
To remove/install or replace G sensor, refer to TM-130, "
Description".
PIIB3706J
Revision: August 2015 2016 Versa Note
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TM-56
< PRECAUTION >[CVT: RE0F11A]
PRECAUTIONS
General Precautions
INFOID:0000000012430985
• Turn ignition switch OFF an d disconnect the battery cable
from the negative terminal before connecting or disconnect-
ing the CVT assembly harness connector. Because battery
voltage is applied to TCM even if ignition switch is turned
OFF.
• When connecting or disconnect ing pin connectors into or
from TCM, do not damage pin terminals (bend or break).
Check that there are not any bends or breaks on TCM pin ter-
minal, when connect ing pin connectors.
• Perform TCM input/output si gnal inspection and check
whether TCM functions normally or not before replacing TCM.
Refer to TM-99, "
Reference Value".
• Perform “DTC (Diagnostic Trouble Code) CONFIRMATION
PROCEDURE”.
If the repair is completed DTC should not be displayed in the
“DTC CONFIRMATION PROCEDURE”.
• Always use the specified brand of CVT fluid. Refer to MA-11, "
Fluids and Lubricants".
• Use lint-free paper not cloth rags during work.
• Dispose of the waste oil using the methods prescribed by law, ordinance, etc. after replacing the CVT fluid.
• Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to prevent the internal parts from becoming contami nated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
SEF289H
AAT470A
MEF040DA
JSBIA1315ZZ
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PREPARATIONTM-59
< PREPARATION > [CVT: RE0F11A]
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000012430988
The actual shape of the tools may differ from those illustrated here.
*: The O-ring as an unit part is set as a SST.
Commercial Service ToolsINFOID:0000000012430989
Tool number
(TechMate No.)
Tool name Description
1. KV311039S0 (—)
Charging pipe set
2. KV31103920* (—)
O-ring CVT fluid changing and adjustment
KV38107900
(—)
Protector
a: 32 mm (1.26 in) dia. Installing drive shaft
JSDIA1844ZZ
PDIA1183J
Tool number
Tool name
Description
Power tool Loosening nuts, screws and
bolts
31197EU50A
Drive plate location guide
a: 25 mm (0.98 in) dia. Installing transaxle assembly
PIIB1407E
JPDIA0676ZZ
Revision: August 2015
2016 Versa Note
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TM-62
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
COMPONENT PARTS
*: These components are included in control valve assembly.
No.
Component Function
1ECM Mainly transmits the following signal to TCM via CAN communication.
• Engine and CVT integrated control signal
NOTE:
General term for the communication (torque-down permission, torque-
down request, etc.) exchanged between the ECM and TCM.
• Engine speed signal
• Accelerator pedal position signal
• Closed throttle position signal
• N idle instruction signal
Mainly receives the following signals from TCM via CAN communication.
• N idle instruction signal
• Malfunction indicator lamp (MIL) signal
2IPDM E/R Mainly transmits the following signal to TCM via CAN communication.
• A/C compressor feedback signal
3TCM TM-63, "
CVT CONTROL SYSTEM : TCM"
4 Transmission range switchTM-63, "CVT CONTROL SYSTEM : Transmission Range Switch"
5 Primary speed sensor TM-63, "CVT CONTROL SYSTEM : Primary Speed Sensor"
6CVT unit —
7 Control
valve ROM assembly*
TM-63, "
CVT CONTROL SYSTEM : ROM Assembly"
CVT fluid temperature sensor*TM-64, "CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor"
Secondary pressure sensor* TM-65, "CVT CONTROL SYSTEM : Secondary Pressure Sensor"
Primary pressure solenoid valve* TM-65, "CVT CONTROL SYSTEM : Primary Pressure Solenoid Valve"
Low brake solenoid valve* TM-65, "CVT CONTROL SYSTEM : Low Brake Solenoid Valve"
High clutch & reverse brake solenoid
valve*TM-66, "CVT CONTROL SYSTEM : High Clutch & Reverse Brake Sole-
noid Valve"
Torque converter clutch solenoid
valve*
TM-66, "CVT CONTROL SYSTEM : Torque
Converter Clutch Solenoid
Va l v e"
Line pressure solenoid valve* TM-66, "CVT CONTROL SYSTEM : Line Pressure Solenoid Valve"
8 Output speed sensor TM-64, "CVT CONTROL SYSTEM : Output Speed Sensor"
9 Secondary speed sensorTM-63, "CVT CONTROL SYSTEM : Secondary Speed Sensor"
10 G sensor TM-66, "CVT CONTROL SYSTEM : G Sensor"
11 B C MMainly transmits the following signal to TCM via CAN communication.
• Stop lamp switch signal
• Turn indicator signal
12 Overdrive control switch TM-66, "
CVT CONTROL SYSTEM : Overdrive Control Switch"
13 Combination meterMainly transmits the following signal to TCM via CAN communication.
• Overdrive control switch signal
Mainly receives the following signals from TCM via CAN communication.
• Shift position indicator signal
• O/D OFF indicator signal
14 Malfunction indicator lamp (MIL) TM-68, "
CVT CONTROL SYSTEM : Malfunction Indicator Lamp (MIL)"
15 O/D OFF indicator lamp TM-66, "CVT CONTROL SYSTEM : O/D OFF Indicator Lamp"
16 Shift position indicator TM-68, "CVT CONTROL SYSTEM : Shift Position Indicator"
17 ABS actuator and electric unit (control unit)Mainly transmits the following signal to TCM via CAN communication.
• Vehicle spee
d signal (ABS)
• ABS operation signal
• ABS malfunction signal
• TCS malfunction signal
• VDC malfunction signal
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COMPONENT PARTSTM-63
< SYSTEM DESCRIPTION > [CVT: RE0F11A]
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CVT CONTROL SYSTEM : TCMINFOID:0000000012430991
• The vehicle driving status is judged based on the signals from the sensors, switches, and other control units,
and the optimal transaxle control is performed.
• For TCM control items, refer to TM-76, "
CVT CONTROL SYSTEM : System Description".
CVT CONTROL SYSTEM : ROM AssemblyINFOID:0000000012430992
• The ROM assembly is installed to control valve.
• The ROM assembly stores the calibration data (characteristic value) of each solenoid valve. TCM enables
accurate hydraulic control by obtaining the calibration data.
CVT CONTROL SYSTEM : Transmission Range SwitchINFOID:0000000012430993
• The transmission range switch is installed to upper part of transaxle case.
• The transmission range switch detects the selector lever position.
CVT CONTROL SYSTEM : Primary Speed SensorINFOID:0000000012430994
• The primary speed sensor is installed to side cover of transaxle.
• The primary speed sensor detects primary pulley speed.
• The primary speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating bodyspeed which is “The higher the rotating body speed is, the faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : Secondary Speed SensorINFOID:0000000012430995
• The secondary speed sensor is installed to side cover of transaxle.
• The secondary speed sensor detects secondary pulley speed.
JSDIA1824GB
Revision: August 2015 2016 Versa Note
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TM-64
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
COMPONENT PARTS
• The secondary 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, the faster the change cycle is”. The TCM judges
the rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : Output Speed SensorINFOID:0000000012430996
• The output speed sensor is installed to the back side of transaxle case.
• The output speed sensor detects final gear speed. TCM evaluates the vehicle speed from the final gear rev-
olution.
• 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, the faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : CVT Fluid Temperature SensorINFOID:0000000012430997
• 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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COMPONENT PARTSTM-65
< SYSTEM DESCRIPTION > [CVT: RE0F11A]
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• The fluid temperature sensor uses a thermistor, and changes the signal voltage by converting changes in the
CVT fluid temperature to a resistance value. TCM evaluates the CVT fluid temperature from the signal volt-
age value.
CVT CONTROL SYSTEM : Secondary Pressure SensorINFOID:0000000012430998
• The secondary pressure sensor is installed to control valve.
• The secondary pressure sensor detects the pressure applied to the secondary pulley.
• When pressure is applied to the ceramic device in the secondary pressure sensor, the ceramic device is deformed, resulting in voltage change. TCM evaluates the secondary pressure from its voltage change. Volt-
age is increased along with pressure increase.
CVT CONTROL SYSTEM : Primar y Pressure Solenoid ValveINFOID:0000000012430999
• The primary pressure solenoid valve is installed to control valve.
• The primary pressure solenoid valve controls the primary pressure control valve. For information about the
primary pressure control valve, refer to TM-73, "
TRANSAXLE : Component Description".
• The primary pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Low Brake Solenoid ValveINFOID:0000000012431000
• The low brake solenoid valve is installed to control valve.
• The low brake solenoid valve adjusts the tightening pressure of the low brake.
JSDIA1825GB
JSDIA1831GB
Revision: August 2015 2016 Versa Note
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TM-66
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
COMPONENT PARTS
• The low brake solenoid valve uses the linear solenoid valve [N/L (normal low) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/L (normal low) type does not produce hydr aulic control when the coil is not energized.
CVT CONTROL SYSTEM : High Clutch & Reverse Brake Solenoid ValveINFOID:0000000012431001
• The high clutch & reverse brake solenoid valve is installed to control valve.
• The high clutch & reverse brake solenoid valve adjusts the tightening pressure of the high clutch and reverse
brake.
• The high clutch & reverse brake solenoid valve uses the linear solenoid valve [N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Torque Co nverter Clutch Solenoid ValveINFOID:0000000012431002
• The torque converter clutch solenoid valve is installed to control valve.
• The torque converter clutch solenoid valve controls the torque converter clutch control valve. For information
about the torque converter clutch control valve, refer to TM-73, "
TRANSAXLE : Component Description".
• The torque converter clutch solenoid valve utilizes a linear solenoid valve [N/L (normal low) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/L (normal low) type does not produce hydr aulic control when the coil is not energized.
CVT CONTROL SYSTEM : Line Pressure Solenoid ValveINFOID:0000000012431003
• The line pressure solenoid valve is installed to control valve.
• The line pressure solenoid valve controls the pressure regulator valve. For information about the pressure
regulator valve, refer to TM-73, "
TRANSAXLE : Component Description".
• The line pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type]. NOTE:
• The principle of the linear solenoid valve utilizes the fa ct that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current . This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : G SensorINFOID:0000000012431004
• G sensor is installed to floor under instrument lower cover.
• G sensor detects front/rear G and inclination applied to the vehicle.
• G sensor converts front/rear G and inclination applied to the vehicle to voltage signal. TCM evaluates front/
rear G and inclination angle of the vehicle from the voltage signal.
CVT CONTROL SYSTEM : Ov erdrive Control SwitchINFOID:0000000012431005
• The overdrive control switch is installed to the selector lever knob.
• When the OD OFF indicator lamp on the combination meter is OFF and the overdrive control switch is
pressed, the overdrive is cancelled and the OD OFF indicator lamp is ON.
• When the OD OFF indicator lamp on the combination meter is ON and the overdrive control switch is
pressed, the overdrive is active and the OD OFF indicator lamp is OFF.
CVT CONTROL SYSTEM : O/D OFF Indicator LampINFOID:0000000012431006
DESIGN/PURPOSE
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