TM-70
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
STRUCTURE AND OPERATION
STRUCTURE AND OPERATION
TRANSAXLE
TRANSAXLE : Cross-Sectional ViewINFOID:0000000012431010
TRANSAXLE : Trans
axle MechanismINFOID:0000000012431011
BELT & PULLEY
1. Converter housing 2. Oil pump3. Counter drive gear
4. Control valve 5. Oil pan6. Primary pulley
7. Steel belt 8. Secondary pulley9. Planetary gear (auxiliary gearbox)
10. Side cover 11. Transaxle case12. Differential case
13. Final gear 14. Reduction gear15. Counter driven gear
16. Drive sprocket 17. Oil pump chain 18. Torque converter
19. Driven sprocket
JSDIA1777ZZ
Revision: August 2015 2016 Versa Note
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TM-72
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
STRUCTURE AND OPERATION
gear shifting from low to overdrive.
“The contact radius ratio of each pulley in contact with the belt x auxiliary
gearbox gear ratio” is the gear ratio.
AUXILIARY GEARBOX MECHANISM
1st, 2nd and reverse gears are changed with the planetary gear mechanism.
TRANSAXLE : Operation StatusINFOID:0000000012431012
× : Engaged or applied.
JSDIA2573GB
Slector le-
ver posi- tion Parking
mecha- nism Counter
gear set Low brake High clutch Reverse
brake Primary
pulley Secondary
pulley Steel belt Reduction
gear set
P ×× ×××
R × ×××××
N × ×××
D ×× (1GR) × (2GR) ××××
L ×× (1GR) × (2GR) ××××
Revision: August 2015 2016 Versa Note
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STRUCTURE AND OPERATIONTM-73
< SYSTEM DESCRIPTION > [CVT: RE0F11A]
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TRANSAXLE : Oil Pressure System INFOID:0000000012431013
Oil pressure required for operation of the transaxle transmission mechanism is generated by oil pump, oil
pressure control valve, solenoid valve, etc.
TRANSAXLE : Component DescriptionINFOID:0000000012431014
JSDIA1826GB
Part name Function
Torque converter It is composed of the cover converter, turbine assembly, stator, pump impeller assem-
bly, etc. It increases the engine torque and transmits the power to the transaxle.
Oil pump Through the oil pump drive chain, it uses the vane oil pump driven by the engine. It gen-
erates necessary oil pressure to circulate fluid and to operate the clutch and brake.
Counter gear set The power from the torque converter is transmitted to the primary pulley through the
counter drive gear and the counter driven gear.
Belt & pulley (Continuously variable transmis-
sion) It is composed of the primary pulley, secondary pulley, steel belt, etc. and the mecha-
nism performs shifting, changes the gear ratio and transmits the power with oil pressure
from the control valve.
Auxiliary gearbox (stepped transmission) It is composed of the planetary gear, multi-disc clutch, multi-disc brake, etc. and the
mechanism performs shifting (1-2 gear shifting and reverse) with oil pressure from the
control valve.
Reduction gear set Conveys power from the transmission mechanism to the reduction gear and the final
gear.
Parking mechanism When the shift lever is changed to P position, the mechanism fixes the parking gear (in-
tegrated with the reduction gear) and the fixes the output shaft.
Control valve Controls oil pressure from the oil pump to the pressure suitable for the line pressure
control system, shift control system, lock-up control system and lubrication system.
Pressure regu lator valve Adjusts the discharge pressure from the oil pump to the optimum pressure (line pres-
sure) corresponding to the driving condition.
Torque converter regulator valve Adjusts the feed pressure to the torque converter to the optimum pressure correspond-
ing to the driving condition.
Pilot valve Adjusts line pressure and produces a constant pressure (pilot pressure) necessary for
activating each solenoid valve.
Revision: August 2015
2016 Versa Note
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DIAGNOSIS SYSTEM (TCM)TM-95
< SYSTEM DESCRIPTION > [CVT: RE0F11A]
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LINE PRESSURE SEN (V) ×Displays the signal voltage of the line pressure sensor.
ATF TEMP SEN (V) ×Displays the signal voltage of the CVT fluid temperature
sensor.
G SENSOR (V) ×Displays the signal voltage of the G sensor.
VIGN SEN (V) ×Displays the battery voltage applied to 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.
OUTPUT REV (rpm) Displays the output shaft speed of CVT 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.
TOTAL GEAR RATIO ×Displays the total CVT gear ratio calculated from input
shaft speed/output shaft speed of CVT.
PULLEY GEAR RATIO ×Displays the pulley gear ratio calculated from primary
pulley speed/secondary pulley speed.
AUX GEARBOX Displays the gear position of the auxiliary gearbox recog-
nized by TCM.
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.
LINE PRESSURE (MPa)× Displays the secondary pressure (line pressure) calcu-
lated from the signal voltage of the secondary 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.
TRGT GEAR RATIO Displays the target gear ratio from the input shaft to the
output shaft of CVT 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.
TRGT AUX GEARBOX Displays the target gear of the auxiliary gearbox calculat-
ed from processing 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.
Monitored item
(Unit)Monitor item selection
Remarks
MAIN SIG-
NALS ECU IN-
PUT SIG-
NALS
Revision: August 2015 2016 Versa Note
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TM-98
< SYSTEM DESCRIPTION >[CVT: RE0F11A]
DIAGNOSIS SYSTEM (TCM)
WORK SUPPORT
*: “Clutch point learning” can
be selected, but do not use it.
Engine brake adjustment
Check the degradation level of the CVT fluid.
G SEN SLOPE (%) Displays the gradient angle calculated from the G sensor
signal voltage.
ENGBRKLVL (On/Off) Displays the setting of “ENGINE BRAKE ADJ” in “Work
Support”.
PVIGN VOLT (V) ×Displays the backup voltage of TCM.
TRGT AUX GR RATIO Displays the target gear ratio of the auxiliary gearbox cal-
culated from processing of gear shift control.
G SEN CALIBRATION (YET/DONE) Displays the status of “G
SENSOR CALIBRATION” in
“Work Support”.
N IDLE STATUS (On/Off) Displays idle neutral status.
CVT-B • Displays CVT fluid temperature count.
• This monitor item does not use.
CVT-A • Displays CVT fluid temperature count.
• This monitor item does not use.
Monitored item
(Unit)Monitor item selection
Remarks
MAIN SIG-
NALS ECU IN-
PUT SIG-
NALS
Item name Description
ENGINE BRAKE ADJ. Although there is no malfunction on the transaxle and the CVT system, if a customer
make a complaint like “I do not feel comfortable with automatic operation of the engine
brake on downhill”, the engine brake may be cancelled with “engine brake adjust-
ment”.
CONFORM CVTF DETERIORTN Check the degradation level of the CVT fluid under severe conditions.
G SENSOR CALIBRATION Compensate the G sensor.
ERASE CALIBRATION DATA Erase the calibration data memorized by TCM.
ERASE LEARNING VALUE Erase the learning value me morized by TCM.
ERASE MEMORY DATA Perform “erasing of the calibration data” and “erasing of the learned value” at the same
time.
CLUTCH POINT LEARNING* Allow learning of the clutch engagement point of the auxiliary gearbox for TCM.
ENGINE BRAKE LEVEL
ON : Turn ON the engine brake control.
OFF : Turn OFF the engine brake control.
CVTF degradation level data
210,000 or more : Replacement of the CVT fluid is required.
Less than 210,000 : Replacement of the CVT fluid is not required.
Revision: August 2015 2016 Versa Note
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TCM
TM-99
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F11A]
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ECU DIAGNOSIS INFORMATION
TCM
Reference ValueINFOID:0000000012431033
CONSULT DATA MONITOR STANDARD VALUE
• In CONSULT, electric shift timing or lock-up timing, i. e. operation timing of each solenoid valve, is displayed.
Therefore, if there is an obvious difference between t he shift timing estimated from a shift shock (or engine
speed variations) and that shown on the CONSULT, the mechanism parts (including the hydraulic circuit)
excluding the solenoids and sensors may be malfunctioning. In this case, check the mechanical parts follow-
ing the appropriate diagnosis procedure.
• Shift point (gear position) displayed on CONSULT slight ly differs from shift pattern described in Service Man-
ual. This is due to the following reasons.
- Actual shift pattern may vary slightly within specified tolerances.
- While shift pattern described in Service Manual indica tes start of each shift, CONSULT shows gear position
at end of shift.
- The solenoid display (ON/OFF) on CONSULT is changed at the start of gear shifting. In contrast, the gear
position display is changed at the time when gear shif ting calculated in the control unit is completed.
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Monitor item ConditionValue/Status (Approx.)
VSP SENSOR While driving Almost same as the speedometer display.
ESTM VSP SIG While driving Almost same as the speedometer display.
PRI SPEED SEN In driving (lock-up ON) A value obtained from dividing engine
speed by counter gear ratio
SEC REV SENSOR Auxiliary gearbox: 1GR
Approximately twice the “VHCL/S SE
(REV)”
Auxiliary gearbox: 2GR Almost same as the “VHCL/S SE (REV)”
VHCL/S SE (REV) Auxiliary gearbox: 1GR
Approximately half of the “SEC REV SEN-
SOR”
Auxiliary gearbox: 2GR Almost same as the “SEC REV SENSOR”
ENG SPEED SIG Engine running Almost same reading as tachometer
LINE PRESSURE SEN • Selector lever: “N” position
•At idle
0.88 – 0.92 V
AT F T E M P S E N CVT fluid: Approx. 20
°C (68 °F) 2.01 – 2.05 V
CVT fluid: Approx. 50 °C (122 °F) 1.45 – 1.50 V
CVT fluid: Approx. 80 °C (176 °F) 0.90 – 0.94 V
G SENSOR Vehicle is level 2.5 V
VIGN SEN Ignition switch: ON 10 – 16 V
VEHICLE SPEED While driving Almost same as the speedo meter display.
INPUT REV In driving (lock-up ON) Almost same as the engine speed.
PRI SPEED In driving (lock-up ON) A value obtained from dividing engine
speed by counter gear ratio
SEC SPEED Auxiliary gearbox: 1GR
Approximately twice the “OUTPUT REV”
Auxiliary gearbox: 2GR Almost same as “OUTPUT REV”
OUTPUT REV Auxiliary gearbox: 1GR
Approximately half of “SEC SPEED”
Auxiliary gearbox: 2GR Almost same as “SEC SPEED”
ENG SPEED Engine running Almost same reading as tachometer
SLIP REV While driving Engine speed − Input speed
Revision: August 2015 2016 Versa Note
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TM-100
< ECU DIAGNOSIS INFORMATION >[CVT: RE0F11A]
TCM
TOTAL GEAR RATIOAuxiliary gearbox: 1GR
Counter gear ratio
×Pulley ratio Auxiliary
gearbox gear ratio
Auxiliary gearbox: 2GR Counter gear ratio ×Pulley ratio
PULLEY GEAR RATIO In driving (forward)
2.20 − 0.55
In driving (reverse) 2.20
AUX GEARBOX Vehicle started with selector lever in “L” position
1st
Release the accelerator pedal after the follow-
ing conditions are satisfied
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 50 km/h (31 MPH) or more 2nd
In gear shifting of auxiliary gearbox 1st ⇔ 2nd
G SPEED Vehicle stopped
0.00 G
During acceleration The value changes to the positive side
along with acceleration.
During deceleration The value changes to the positive side
along with deceleration.
ACCEL POSI SEN 1 Accelerator pedal released
0.00 deg
Accelerator pedal fully depressed 80.00 deg
VENG TRQ While driving The value changes along with acceleration/
deceleration.
PRI TRQ While driving The value changes along with acceleration/
deceleration.
TRQ RTO While driving The value changes along with acceleration/
deceleration.
LINE PRESSURE Selector lever: “P” position 0.575 MPa
FLUID TEMP Ignition switch ON. Displays the CVT fluid temperature.
DSR REV While driving It varies along with the driving condition.
TRGT GEAR RATIO While driving It varies along with the driving condition.
TGT PLLY GR RATIO In driving (forward)
2.20 − 0.55
In driving (reverse) 2.20
TRGT AUX GEARBOX Vehicle started with selector lever in “L” position
1st
Release the accelerator pedal after the follow-
ing conditions are satisfied
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 50 km/h (31 MPH) or more 2nd
In gear shifting of auxiliary gearbox Display gear position after gear shifting
LU PRS • Engine started
• Vehicle is stopped.
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0.500 MPa
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 20 km/h (12 MPH) or more 0.450 MPa
LINE PRS • After engine warm up
• Selector lever: “N” position
•At idle
0.500 MPa
• After engine warming up
• Selector lever: “D” position
• Depress the accelerator pedal fully 4.930 – 5.430 MPa
TRGT PRI PRESSURE • Selector lever: “L” position
• Vehicle speed: 20 km/h (12 MPH) 0.325 MPa
Monitor item
ConditionValue/Status (Approx.)
Revision: August 2015 2016 Versa Note
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TM-164
< DTC/CIRCUIT DIAGNOSIS >[CVT: RE0F11A]
P0720 OUTPUT SPEED SENSOR
P0720 OUTPUT SPEED SENSOR
DTC LogicINFOID:0000000012431097
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
1. Start the engine.
2. Drive the vehicle.
3. Maintain the following conditions for 10 seconds or more.
4. Stop the vehicle.
5. Check the first trip DTC.
Is
“P0720” detected?
YES >> Go to TM-164, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431098
1.CHECK OUTPUT SPEED SENSOR POWER CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect output speed sensor connector.
3. Turn ignition switch ON.
4. Check voltage between output speed sensor harness connector terminal and ground.
DTC Trouble diagnosis name DTC detection conditionPossible causes
P0720 Output Speed Sensor Circuit The output speed sensor value is less than
150 rpm continuously for 10 seconds or more
under the following diagnosis conditions:
• Diagnosis conditions
- Selector lever: “D”, “L” or “R” position
- Auxiliary gearbox shifting is not in progress.
- When the “D” position
switch, “L” position
switch or “R” position switch is ON, the out-
put speed has not experienced 250 rpm or
more.
- After shifting the selector lever, the input
speed has experienced less than 300 rpm.
- Secondary pulley speed: 1,500 rpm or more
- TCM power supply voltage: More than 11 V • Harness or connector
(Output speed sensor circuit is open or
shorted)
• Output speed sensor
The output speed sensor value is 90 rpm or
less continuously for 500 msec or more under
the following diagnosis conditions:
• Diagnosis conditions
- 10-msec-ago output speed: 730 rpm or more
- TCM power supply voltage: More than 11 V
Selector lever : “D” position
Vehicle speed : 55 km/h (34 MPH) or more
Revision: August 2015 2016 Versa Note
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