2011 NISSAN TIIDA CVT fluid

CVT-70
< SERVICE INFORMATION >[RE0F08B]
P0710 TRANSMISSION FLUID
TEMPERATURE SENSOR A
3. Check resistance between CVT unit harness connector termi-
nals.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-180, "
Removal and Installation".
4. CHECK HARNESS BETWEEN TCM AND CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect the TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK DTC
Perform CVT-67, "
DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to CVT-46, "
TCM Terminal and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component InspectionINFOID:0000000005928794
CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector.
Name Connector Terminal Te m p e r a -
ture °C ( °F) Resistance
(Approx.)
CVT fluid
temperature
sensor F46
17 - 19 20 (68) 6.5 k
Ω
80 (176) 0.9 k Ω
SCIA4679E
ItemConnector Terminal Continuity
TCM E3242
Ye s
CVT unit harness connector F46 19
TCM E3247
Ye s
CVT unit harness connector F46 17
SCIA4680E
Revision: May 2010 2011 Versa

P0710 TRANSMISSION FLUID TEMPERATURE SENSOR ACVT-71
< SERVICE INFORMATION > [RE0F08B]
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G H
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M A
B
CVT
N
O P
3. Check resistance between CVT unit harness connector termi- nals.
4. If NG, replace the transaxle assembly. Refer to CVT-180,
"Removal and Installation" .
Name Connector Terminal Te m p e r a -
ture ° C (°F) Resistance
(Approx.)
CVT fluid
temperature
sensor F46
17 - 19 20 (68) 6.5 k
Ω
80 (176) 0.9 k Ω
SCIA4679E
Revision: May 2010 2011 Versa

P0730 INCORRECT GEAR RATIOCVT-83
< SERVICE INFORMATION > [RE0F08B]
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P0730 INCORRECT GEAR RATIO
DescriptionINFOID:0000000005928815
TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and
the secondary pulley revolution speed as input signal. T hen it changes the operating pressure of the primary
pulley and the secondary pulley and changes the groove width of the pulley.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928816
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928817
• This is not an OBD-II self-diagnostic item.
• TCM calculates the actual gear ratio with primary speed sensor and secondary speed sensor.
• Diagnostic trouble code “P0730” with CONSULT-III is detected, when TCM receives an unexpected gear
ratio signal.
Possible CauseINFOID:0000000005928818
Transaxle assembly
DTC Confirmation ProcedureINFOID:0000000005928819
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that output voltage of CVT fluid temperature sensor is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to
increase the voltage (c ool down the fluid)
3. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds. TEST START FROM 0 km/h (0 MPH)
CONSTANT ACCELERATION: Keep 30 sec or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
5. If DTC is detected, go to CVT-83, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005928820
1.CHECK DTC
Perform CVT-83, "
DTC Confirmation Procedure".
Are any DTC displayed?
YES - 1>> DTC except for “P0730” is displayed: Go to Check the DTC detected item. Refer to CVT-48,
"CONSULT-III Function (TRANSMISSION)".
YES - 2>> DTC for “P0730” is displayed: Replace the transaxle assembly. Refer to CVT-180, "
Removal and
Installation".
NO >> INSPECTION END
Item name Condition Display value (Approx.)
GEAR RATIO During driving 2.56 - 0.43
Revision: May 2010 2011 Versa

CVT-84
< SERVICE INFORMATION >[RE0F08B]
P0740 TORQUE CONVERTER
P0740 TORQUE CONVERTER
DescriptionINFOID:0000000005928821
• The torque converter clutch solenoid valve is included in the control valve assembly.
• The torque converter clutch solenoid valve is activated by the TCM in response to signals sent from the vehi-
cle speed and accelerator pedal position sensors. Lock-up piston operation will then be controlled.
• Lock-up operation, however, is prohibited when CVT fluid temperature is too low.
• When the accelerator pedal is depressed (less than 2.0/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928822
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928823
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0740” with CONSULT-III is detected under the following conditions.
- TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseINFOID:0000000005928824
• Torque converter clutch solenoid valve
• Harness or connectors (Solenoid circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928825
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III and wait at least 10 consecutive
seconds.
3. If DTC is detected, go to CVT-86, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value (Approx.)
ISOLT1 Lock-up OFF
0.0 A
Lock-up ON 0.7 A
Revision: May 2010 2011 Versa

P0840 TRANSMISSION FLUID PRESSURE SEN/SW ACVT-105
< SERVICE INFORMATION > [RE0F08B]
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P0840 TRANSMISSION FLUI D PRESSURE SEN/SW A
DescriptionINFOID:0000000005928863
• The secondary pressure sensor is included in the control valve assembly.
• The secondary pressure sensor detects secondar y pressure of CVT and sends TCM the signal.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928864
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928865
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0840” with CONSULT-III is detected when TCM detects an improper voltage drop
when it receives the sensor signal.
Possible CauseINFOID:0000000005928866
• Secondary pressure sensor
• Harness or connectors
(Switch circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928867
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that output voltage of line temperature sensor is within the range below. ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to
increase the voltage (c ool down the fluid)
3. Start engine and wait for at least 5 consecutive seconds.
4. If DTC is detected, go to CVT-107, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value (Approx.)
SEC HYDR SEN “N” position idle 1.0 V
SEC PRESS 0.8 MPa
Revision: May 2010 2011 Versa

CVT-106
< SERVICE INFORMATION >[RE0F08B]
P0840 TRANSMISSION FLUID PRESSURE SEN/SW A
Wiring Diagram - CVT - SECPS
INFOID:0000000005928868
TCM TERMINALS AND REFERENCE VALUES
Refer to CVT-46, "TCM Terminal and Reference Value".
AADWA0021GB
Revision: May 2010 2011 Versa

P0840 TRANSMISSION FLUID PRESSURE SEN/SW ACVT-107
< SERVICE INFORMATION > [RE0F08B]
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CVT
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Diagnosis ProcedureINFOID:0000000005928869
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
3. Start vehicle and read out the value of “SEC HYDR SEN”.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON. (Do not start engine)
2. Check voltage between TCM connector terminals.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR (SENSOR POWER AND
SENSOR GROUND) 1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminals and CVT unit harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> Replace TCM. Refer to CVT-159, "Removal and Installation" .
Item nameConditionDisplay value (Approx.)
SEC HYDR SEN “N” position idle1.0 V
Name Connector Terminal Condition Voltage
(Approx.)
Secondary
pressure sen-
sor E32 37 - Ground “N” position idle 1.0 V
SCIA4508E
Item
Connector Terminal Data (Ap-
prox.)
TCM connector E3246 - 42 5.0 V
SCIA2367E
Item Connector Terminal Continuity
TCM E3242
Ye s
CVT unit harness connector F46 19
TCM E3246
Ye s
CVT unit harness connector F46 20
SCIA4681E
Revision: May 2010 2011 Versa

CVT-108
< SERVICE INFORMATION >[RE0F08B]
P0840 TRANSMISSION FLUID PRESSURE SEN/SW A
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK HARNESS BETWEEN TCM A
ND SECONDARY PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect TCM connector and CVT unit harness connector.
3. Check continuity between TCM connector terminal and CVT unit harness connector terminal.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK DTC
Perform CVT-105, "
DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to CVT-46, "
TCM Terminal and Reference Value" .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace the transaxle assembly. Refer to CVT-180, "Removal and Installation" .
NG >> Repair or replace damaged parts.
Item Connector Terminal Continuity
TCM E3237
Ye s
CVT unit harness connector F46 23
SCIA4690E
Revision: May 2010 2011 Versa