2011 NISSAN TIIDA engine oil

CVT-38
< SERVICE INFORMATION >[RE0F08B]
TROUBLE DIAGNOSIS
• Inspect for fluid leakage and check the fluid level. Refer to
CVT-14, "Checking CVT Fluid" .
Fluid Condition Check
Inspect the fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the
CVT fluid temperature is 50 to 80 °C (122 to 176° F). Inspect the
amount of CVT fluid. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Install a tachometer where it can be seen by driver during test. •It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D” position.
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state) Clutch, brake
scorchedReplace the CVT fluid and check the
CVT main unit and the vehicle for
malfunctions (wire harnesses, cool-
er pipes, etc.)
Milky white or
cloudy Water in the fluidReplace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
in Unusual wear of
sliding parts within
CVT
Replace the CVT fluid and check for
improper operation of the CVT.
SAT638A
SAT647B
SAT513G
SAT775B
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSISCVT-39
< SERVICE INFORMATION > [RE0F08B]
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6. While holding down the foot brake, gradually press down the accelerator pedal.
7. Quickly read off the stall speed, and then quickly remove your foot from the accelerator pedal.
CAUTION:
Do not hold down the accelerat or pedal for more than 5 sec-
onds during this test.
8. Move the selector lever to the “N” position.
9. Cool down the CVT fluid. CAUTION:
Run the engine at idle for at least 1 minute.
10. Repeat steps 6 through 9 with selector lever in “R” position.
Judgement Stall Test
O: Stall speed within standard value position.
H: Stall speed is higher than standard value.
L: Stall speed is lower than standard value.
LINE PRESSURE TEST
Line Pressure Test Port
Line Pressure Test Procedure
1. Inspect the amount of engine oil and replenish if necessary.
2. Drive the car for about 10 minutes to warm it up so that the CVT fluid reaches in the range of 50 to 80°C
(122 to 176 °F), then inspect the amount of CVT fluid and replenish if necessary.
NOTE: Stall speed:
CVT-183, "
Stall Speed"
SAT514G
SAT771B
Selector lever position
Expected problem location
“D” “R”
Stall rotation HO•F
orw ard c lu tc h
O H • Reverse brake
L L • Engine and torque converter one-way clutch
HH • Line pressure low
• Primary pulley
• Secondary pulley
•Steel belt
SCIA6184E
Revision: May 2010
2011 Versa

CVT-40
< SERVICE INFORMATION >[RE0F08B]
TROUBLE DIAGNOSIS
The CVT fluid temperature rises in the range of 50 - 80
°C (122 - 176° F) during 10 minutes of driving.
3. After warming up CVT, remove the oil pressure detection plug and install the oil pressure gauge [special service tool: - (OTC3492)].
CAUTION:
When using the oil pressure gauge, be sure to u se the O-ring attached to the oil pressure detec-
tion plug.
4. Securely engage the parking brake so that the tires do not turn.
5. Start the engine, and then measure the line pressure at both idle and the stall speed.
CAUTION:
• Keep the brake pedal pressed all the way down duringmeasurement.
• When measuring the line pressure at the stall speed, refer
to "STALL TEST" .
6. After the measurements are complete, install the oil pressure detection plug and tighten to the specified torque below.
CAUTION:
• Do not reuse O-ring.
• Apply CVT fluid to O-ring.
Line Pressure
Judgement of Line Pressure Test
SAT513G
: 7.5 N·m (0.77 kg-m, 66 in-lb)SAT493G
Engine speed Line pressure kPa (kg/cm
2 , psi)
“R”, “D” and “L” positions
At idle CVT-183, "
Line Pressure"At stall
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISCVT-41
< SERVICE INFORMATION > [RE0F08B]
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Road TestINFOID:0000000005928754
DESCRIPTION
• The purpose of the test is to determine overall performance of CVT and analyze causes of problems.
• The road test consists of the following three parts:
1. “Check Before Engine Is Started” CVT-42
.
2. “Check at Idle”CVT-42
.
3. “Cruise Test”CVT-43
.
• Before road test, familiarize yourself with all test procedures and items to check.
• Perform tests on all items until specified symptom is found. Trou-
bleshoot items which check out No Good after road test.
Judgement Possible cause
Idle speed Low for all positions
(“P”, “R”, “N”, “D”, “L”)
Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
• Oil pump wear
• Pressure regulator valve or plug sticking or spring fatigue
• Oil strainer
⇒ oil pump ⇒ pressure regulator valve passage oil leak
• Engine idle speed too low
Only low for a specific
position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
High Possible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example
• Accelerator pedal position signal malfunction
• CVT fluid temperature sensor malfunction
• Line pressure solenoid) malfunction (sticking in OFF state, filter clog, cut line)
• Pressure regulator valve or plug sticking
Stall speed Line pressure does
not rise higher than
the line pressure for
idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment func-
tion.
For example
• Accelerator pedal position signal malfunction
•TCM malfunction
• Line pressure solenoid) malfunction (shorting, sticking in ON state)
• Pressure regulator valve or plug sticking
The pressure rises,
but does not enter the
standard position. Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function.
For example
• Accelerator pedal position signal malfunction
• Line pressure solenoid) malfunction (sticking, filter clog)
• Pressure regulator valve or plug sticking
Only low for a specific
position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
SAT786A
SAT496G
Revision: May 2010
2011 Versa

TROUBLE DIAGNOSISCVT-43
< SERVICE INFORMATION > [RE0F08B]
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3.CHECK “P” POSITION FUNCTION
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Apply parking brake.
Does vehicle move when it is pushed forward or backward?
YES >> Mark the box CVT-145, "In "P" Position, Vehicle Moves Forward or Backward When Pushed" on
the CVT-31, "
How to Perform Trouble Diagnosis for Quick and Accurate Repair" . Continue “Road
Te s t ” .
NO >> GO TO 4.
4.CHECK “N” POSITION FUNCTION
1. Start engine.
2. Move selector lever to “N” position.
3. Release parking brake.
Does vehicle move forward or backward?
YES >> Mark the box CVT-146, "In "N" Position, Vehicle Moves" on the CVT-31, "How to Perform Trouble
Diagnosis for Quick and Accurate Repair" . Continue “Road Test”.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from
“N” to “R” position?
YES >> Mark the box CVT-146, "Large Shock "N" → "R" Position" on the CVT-31, "How to Perform Trou-
ble Diagnosis for Quick and Accurate Repair" . Continue “Road Test”.
NO >> GO TO 6.
6.CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward w hen foot brake is released?
YES >> GO TO 7.
NO >> Mark the box CVT-147, "
Vehicle Does Not Creep Backward in "R" Position" on the CVT-31, "How
to Perform Trouble Diagnosis for Quick and Accurate Repair" . Continue “Road Test”.
7.CHECK “D”, “L” POSITIONS FUNCTION
Move selector lever to “D” and “L” positions and check if vehicle creeps forward.
Does vehicle creep forward in all positions?
YES >> Go to CVT-43, "Cruise Test" .
NO >> Stop “Road Test”. Mark the box on the CVT-31, "
How to Perform Trouble Diagnosis for Quick and
Accurate Repair" . Go to CVT-148, "Vehicle Does Not Creep Forward in "D" or "L" Position" .
Cruise TestINFOID:0000000005928757
1.CHECK VEHICLE SPEED WHEN SHIFTING GEARS — PART 1
1. Drive vehicle for approximately 10 minutes to warm engine oil and CVT fluid up to operating temperature.
2. Park vehicle on flat surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “L” position. CVT fluid operating temperature: 50 - 80
°C (122 - 176° F)
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISCVT-53
< SERVICE INFORMATION > [RE0F08B]
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VEHICLE SPEED (km/h or mph) —X Vehicle speed recognized by the TCM.
PRI SPEED (rpm) —X Primary pulley speed.
SEC SPEED (rpm) —— Secondary pulley speed.
ENG SPEED (rpm) —X
SLIP REV (rpm) —X Difference between engine speed and primary
pulley speed
GEAR RATIO —X
G SPEED (G) ——
ACC PEDAL OPEN (0.0/8) XX Degree of opening for accelerator recognized by
the TCM
For fail-safe operation, the specific value used for
control is displayed.
TRQ RTO ——
SEC PRESS (MPa) —X
PRI PRESS (MPa) —X
ATFTEMP COUNT —X Means CVT fluid temperature. Actual oil temper-
ature (
°C) cannot be checked unless a numeric
value is converted. Refer to CVT-11
.
DSR REV (rpm) — —
DGEAR RATIO — —
DSTM STEP (step) — —
STM STEP (step) — X
LU PRS (MPa) — —
LINE PRS (MPa) — —
TGT SEC PRESS (MPa) — —
ISOLT1 (A) — X Torque converter clutch solenoid valve output
current
ISOLT2 (A) — X Line pressure solenoid valve output current
ISOLT3 (A) — X Secondary pressure solenoid valve output cur-
rent
SOLMON1 (A) X X Torque converter clutch solenoid valve monitor
current
SOLMON2 (A) X X Line pressure solenoid valve monitor current
SOLMON3 (A) X X Secondary pressure solenoid valve monitor cur-
rent
P POSITION SW (on/off) X —
R POSITION SW (on/off) X —
N POSITION SW (on/off) X —
D POSITION SW (on/off) X —
L POSITION SW (on/off) X — Monitored item (Unit)
Monitor item selection
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
Revision: May 2010 2011 Versa

P0745 PRESSURE CONTROL SOLENOID ACVT-91
< SERVICE INFORMATION > [RE0F08B]
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P0745 PRESSURE CONTROL SOLENOID A
DescriptionINFOID:0000000005928835
• The line pressure solenoid valve is included in the control valve assembly.
• The line pressure solenoid valve regulates the oil pum p discharge pressure to suit the driving condition in
response to a signal sent from the TCM.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005928836
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928837
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0745” with CONSULT-III is detected under the following conditions.
- TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM compares target value with monitor value and detects an irregularity.
Possible CauseINFOID:0000000005928838
• Harness or connectors
(Solenoid circuit is open or shorted.)
• Line pressure solenoid valve
DTC Confirmation ProcedureINFOID:0000000005928839
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. Start engine and wait at least 5 seconds.
3. If DTC is detected, go to CVT-93, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value (Approx.)
ISOLT2 Release your foot from the accelerator pedal.
0.8 A
Press the accelerator pedal all the way down. 0.0 A
Revision: May 2010 2011 Versa

CVT-96
< SERVICE INFORMATION >[RE0F08B]
P0746 PRESSURE CONTROL SOLENOID A
P0746 PRESSURE CONTROL SOLENOID A
DescriptionINFOID:0000000005928843
• The line pressure solenoid valve is included in the control valve assembly.
• The line pressure solenoid valve regulates the oil pum
p discharge pressure to suit the driving condition in
response to a signal sent from the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928844
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928845
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0746” with CONSULT-III is detected under the following conditions.
- Unexpected gear ratio was detected in the LOW side due to excessively low line pressure.
Possible CauseINFOID:0000000005928846
• Line pressure control system
• Secondary speed sensor
• Primary speed sensor
DTC Confirmation ProcedureINFOID:0000000005928847
CAUTION:
Always drive vehicle at a safe speed.
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 and select “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
2. Start engine and maintain the following conditions for at least 10 consecutive seconds. Test start from 0
km/h (0 MPH).
ATF TEMP SEN: 1.0 - 2.0 V
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
VEHICLE SPEED: 10 km/h (6 MPH) More than
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
3. If DTC is detected, go to CVT-96, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005928848
1.CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-37, "
Inspections before Trouble Diagnosis".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts. Refer to CVT-37, "
Inspections before Trouble Diagnosis".
2.DETECT MALFUNCTIONING ITEM
Check line pressure solenoid valve. Refer to CVT-94, "
Component Inspection".
Item nameCondition Display value (Approx.)
PRI PRESS “N” position idle 0.4 MPa
Revision: May 2010 2011 Versa