check engine NISSAN LATIO 2011 Service Repair Manual

CVT-134
< SERVICE INFORMATION >[RE0F08B]
P1778 STEP MOTOR
Diagnosis Procedure
INFOID:0000000005928936
1.CHECK STEP MOTOR
With CONSULT-III
It is monitoring whether “GEAR RATIO: 2.56 - 0.43” changes similarly to “STM STEP: (−20) - (+180)” by DATA
MONITOR mode. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Without CONSULT-III
Inspect the engine speed (rise and descend), vehicle speed, throttle position, and check shift change. Refer to
CVT-183, "
Vehicle Speed When Shifting Gears".
OK or NG
OK >> INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-180, "
Removal and Installation".
Revision: May 2010 2011 Versa

CVT-140
< SERVICE INFORMATION >[RE0F08B]
SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
DescriptionINFOID:0000000005928942
TCM sends the switch signals to combination meter vi
a CAN communication line. Then selector lever position
is indicated on the shift position indicator.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928943
Diagnosis ProcedureINFOID:0000000005928944
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” m ode for “TRANSMISSION” with CONSULT-III and read
out the value of “RANGE”.
3. Check that the following three pos itions or indicators are same.
- Actual position of the selector lever
- “RANGE” on CONSULT-III screen
- Shift position indicator in the combination meter
OK or NG
OK >> INSPECTION END
NG >> Check the following.
SHIFT POSITION INDICATOR SYMPTOM CHART
Item name Condition Display value
RANGE Selector lever in “N
” or “P” position. N·P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “L” position. L
Items Presumed location of trouble
Actual position does not change. Transmission range switch
• Refer to
CVT-62
.
CVT main system (Fail-safe function actuated)
• Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Shift position indicator in the combination meter does not indicate
any position. Perform the self-diagnosis for CVT and the combination meter.
• Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)"
and DI-4
.
Actual position changes, but the shift position indicator in the com-
bination meter does not change.
Actual position differs from the shift position indicator in the com-
bination meter.
Shift position indicator in the combination meter does not indicate
specific position only.
Check the combination meter.
• Refer to
DI-4
.
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMSCVT-145
< SERVICE INFORMATION > [RE0F08B]
D
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F
G H
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M A
B
CVT
N
O P
Check again. Refer to CVT-42, "Check before Engine Is Started".
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7.CHECK COMBINATION METERS
Check combination meters. Refer to DI-4
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Engine Cannot Be Starte d in "P" and "N" PositionINFOID:0000000005928947
SYMPTOM:
•Engine cannot be started with select or lever in “P” or “N” position.
• Engine can be started with selector lever in “D”, “L” or “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Do the self-diagnostic results indicate transmission range switch circuit?
YES >> Check transmission range switch circuit. Refer to CVT-62 .
NO >> GO TO 2.
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-164, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-164, "
Adjustment of CVT Position".
3.CHECK STARTING SYSTEM
Check starting system. Refer to SC-9
.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
In "P" Position, Vehicle Moves Forward or Backward When PushedINFOID:0000000005928948
SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Do the self-diagnostic results indicate transmission range switch circuit?
YES >> Check transmission range switch circuit. Refer to CVT-62.
NO >> GO TO 2.
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-164, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-164, "
Adjustment of CVT Position".
3.CHECK SYMPTOM
Check again. Refer to CVT-42, "
Check at Idle".
Revision: May 2010 2011 Versa

CVT-146
< SERVICE INFORMATION >[RE0F08B]
TROUBLE DIAGNOSIS FOR SYMPTOMS
OK or NG
OK >>
INSPECTION END
NG >> Replace the transaxle assembly. Refer to CVT-180, "
Removal and Installation".
In "N" Position, Vehicle MovesINFOID:0000000005928949
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Do the self-diagnostic results indicate transmission range switch circuit?
YES >> Check transmission range switch circuit. Refer to CVT-62.
NO >> GO TO 2.
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-164, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-164, "
Adjustment of CVT Position".
3.CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-14, "
Checking CVT Fluid".
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4.CHECK SYMPTOM
Check again. Refer to CVT-42, "
Check at Idle".
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5.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.
Large Shock "N" → "R" PositionINFOID:0000000005928950
SYMPTOM:
There is large shock when shifting from “N” to “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
Is any malfunction detec ted by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-48, "CONSULT-III Function (TRANSMISSION)".
NO >> GO TO 2.
2.CHECK ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-578, "
Idle Speed and Ignition Timing Check".
OK or NG
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMSCVT-151
< SERVICE INFORMATION > [RE0F08B]
D
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G H
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M A
B
CVT
N
O P
Vehicle Speed Does Not Change in "D" PositionINFOID:0000000005928955
SYMPTOM:
Vehicle speed does not change in “D” position while the cruise test.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis check. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system. Refer to CVT-48, "CONSULT-III Function (TRANSMISSION)" .
NO >> GO TO 2.
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-164, "
Checking of CVT Position"
OK or NG
OK >> GO TO 3.
NG >> Adjust CVT position. Refer to CVT-164, "
Adjustment of CVT Position" .
3.CHECK CVT FLUID LEVEL
Check CVT fluid level. Refer to CVT-14, "
Checking CVT Fluid" .
OK or NG
OK >> GO TO 4.
NG >> Refill CVT fluid.
4.CHECK LINE PRESSURE
Check line pressure at idle. Refer to CVT-37, "
Inspections before Trouble Diagnosis" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunctioning item. Refer to CVT-37, "
Inspections before Trouble Diagnosis" .
5.CHECK STALL REVOLUTION
Check stall revolution. Refer to CVT-37, "
Inspections before Trouble Diagnosis" .
OK or NG
OK >> GO TO 6.
NG >> Check the malfunctioning item. Refer to CVT-37, "
Inspections before Trouble Diagnosis" .
6.CHECK SYMPTOM
Check again. Refer to CVT-43, "
Cruise Test" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.
7.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 dam age 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.
Vehicle Does Not Decelerate by Engine BrakeINFOID:0000000005928956
SYMPTOM:
Engine brake does not operate when releasing the accelerator pedal while the cruise test.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Revision: May 2010 2011 Versa

CVT-156
< SERVICE INFORMATION >[RE0F08B]
CVT SHIFT LOCK SYSTEM
•
Selector lever can be moved from “P” position with ignition key in ON position and brake pedal
released.
• Selector lever can be moved from “P” position when ignition switch is removed from key cylinder.
SYMPTOM 2:
• Ignition key cannot be removed when sel ector lever is set to “P” position.
• Ignition key can be removed when selector lever is set to any position except “P” position.
1.CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT-219, "
Removal and Installation".
2.CHECK CVT POSITION
Check CVT position. Refer to CVT-164, "
Checking of CVT Position".
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to CVT-164, "
Adjustment of CVT Position".
3.CHECK SHIFT LOCK SOLENOID AND PARK POSITION SWITCH
1. Turn ignition switch ON. (Do not start engine.)
2. Selector lever is set in “P” position.
3. Check operation sound.
OK or NG
OK >> INSPECTION END
NG - 1 >> With intelligent key: GO TO 4.
NG - 2 >> Without intelligent key: GO TO 5.
4.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between CVT shift selector harness connector terminal 5 and ground.
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
5.CHECK POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
Condition Brake pedalOperation sound
When ignition switch is turned to ON position and selector lever is set in
“P” position. Depressed
Ye s
Released
Voltage:
Brake pedal depressed: Battery voltage
Brake pedal released: 0V
SCIA7934E
Revision: May 2010 2011 Versa

CVT-164
< SERVICE INFORMATION >[RE0F08B]
SHIFT CONTROL SYSTEM
1. Set shift selector handle (1) in “N” position.
2. Slide shift selector handle cover (2) downward.
3. Pull out shift selector handle clip (3) from shift selector handle
(1).
4. Remove shift selector handle (1) and shift selector handle cover (2) as a set from shift selector.
CAUTION:
Do not push shift selector button.
INSTALLATION
1. Insert shift selector handle clip (1) to shift selector handle (2).
2. Install shift selector handle cover (3) to shift selector handle (2).
3. Set shift selector in “N” position.
4. Install shift selector handle onto shift selector until a click is felt.
CAUTION:
• Do not tilt shift selector hand le when installing. Install it
straight, and do not tap or apply any shock to install it.
• Do not push shift selector handle button.
Adjustment of CVT PositionINFOID:0000000005928965
CAUTION:
Make sure that parking brake is applied before adjustment.
1. Loosen the shift selector control cable nut (A) and place the manual lever (1) in “P” position.
2. Place shift selector in “P” position.
3. Push the control cable (2) in with a load of 9.8 N (approximately 1 kg, 2.2 lb). Release the shift selector control cable and tempo-
rarily tighten the shift selector control cable nut.
NOTE:
Do not move the manual lever. Make sure the manual lever
stays in the “P” position.
4. Tighten the shift selector control cable nut. CAUTION:
Secure the manual lever when tighteningshift selector con-
trol cable nut.
5. Check the operation of the CVT. Refer to CVT-164, "
Checking of CVT Position".
Checking of CVT PositionINFOID:0000000005928966
1. Place shift selector in “P” position, and turn ignition switch ON. (Do not start engine.)
2. Make sure shift selector can be shifted to other than “P” position when brake pedal is depressed. Also
make sure shift selector can be shifted from “P” position only when brake pedal is depressed.
3. Move the shift selector and check for excessive effort, sticking, noise or rattle.
4. Confirm the shift selector stops at each position with the feel of engagement when it is moved through all
the positions. Check that the actual position of the shift selector matches the position shown by the posi-
tion indicator and the manual lever on the transaxle.
SCIA6971E
SCIA6972E
Shift selector con-
trol cable nut: Refer to
CVT-160, "Removal
and Installation".
WCIA0608E
Revision: May 2010 2011 Versa

CVT-176
< SERVICE INFORMATION >[RE0F08B]
CVT OIL WARMER SYSTEM
When installing water hoses, install them according to the following:
• Insert CVT water hose according to dimension “A” described
below.
• Set hose clamps (1) at the both ends of fluid cooler hose (2) with dimension (A) from the hose edge.
• Hose clamp should not interfere with the bulge.
*: Refer to the illustrations for the specific position of each hose clamp tab.
• The illustrations indicate the view from the hose ends.
• When installing hose clamps the center line of each clamp tab should be positioned as shown.
WATER HOSE : InspectionINFOID:0000000006068648
INSPECTION AFTER INSTALLATION
Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.
CVT FLUID COOLER HOSE
CVT water hose (1) Insert side tube (2) Dimension “A”
CVT water hose A Water inlet-outlet
End reaches the spool portion (B)
CVT oil warmer
CVT water hose B CVT oil warmer
CVT water tube
CVT water hose C CVT water tube
Water pump
JSDIA1291ZZ
Dimension (A) : 5 – 7 mm (0.20 – 0.28 in)
SCIA8123E
CVT water hose
Hose end Paint mark
Position of hose clamp*
CVT water hose A Water inlet-outlet side Facing forward A
CVT oil warmer side
Facing forward A
CVT water hose B CVT oil warmer side
Facing to the right of the vehicle B
CVT water tube side Facing forward A
CVT water hose C CVT water tube side
Facing forward A
Water pump side Facing upward C
D: Vehicle front
E : Vehicle upper
JSDIA1292ZZ
Revision: May 2010
2011 Versa

CVT OIL WARMER SYSTEMCVT-179
< SERVICE INFORMATION > [RE0F08B]
D
E
F
G H
I
J
K L
M A
B
CVT
N
O P
CVT FLUID COOLER HOSE : InspectionINFOID:0000000006068651
INSPECTION AFTER INSTALLATION
Check for CVT fluid leakage and check CVT fluid level. Refer to CVT-14, "Checking CVT Fluid".
CVT OIL WARMER
CVT OIL WARMER : Exploded ViewINFOID:0000000006068652
CVT OIL WARMER : Removal and InstallationINFOID:0000000006068653
REMOVAL
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator.
CAUTION:
Perform this step engine is cold.
1. Remove CVT water hose from CVT oil warmer. Refer to CVT-175, "
WATER HOSE : Exploded View".
2. Remove CVT fluid cooler hose from CVT oil warmer. Refer to CVT-177, "
CVT FLUID COOLER HOSE :
Exploded View".
3. Remove CVT oil warmer.
4. Remove bracket.
INSTALLATION
Installation is in the reverse order of removal.
CVT OIL WARMER : InspectionINFOID:0000000006068654
INSPECTION AFTER INSTALLATION
• Check for CVT fluid leakage and check CVT fluid level. Refer to CVT-14, "Checking CVT Fluid".
• Start and warm up the engine. Visually check that there is no leakage of engine coolant and CVT fluid.
1. CVT oil warmer2. Bracket3. Transaxle assembly
Refer to GI-8, "
Component" for symbols in the figure.
JPDIA0725GB
Revision: May 2010 2011 Versa

TRANSAXLE ASSEMBLYCVT-181
< SERVICE INFORMATION > [RE0F08B]
D
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B
CVT
N
O P
2. Disconnect the primary speed sensor (A) and the secondary
speed sensor connector (B) and CVT unit connector (C). Refer
to CVT-9, "
Removal and Installation Procedure for CVT Unit
Connector".
3. Remove the harness from the transaxle.
4. Remove the four drive plate to torque converter nuts. NOTE:
Rotate the crankshaft clockwise as viewed from front of engine
for access to drive plate to torque converter nuts.
5. Put matching marks on the drive plate and torque converter alignment stud. CAUTION:
For matching marks, use paint. Never dama ge the drive plate or torque converter.
6. Remove the transaxle to engine and engine to transaxle bolts.
7. Separate the transaxle from the engine.
8. If necessary, remove the following from the transaxle: • CVT fluid charging pipe
• Engine mounting bracket (LH)
• Fluid cooler tubes
• Air breather hose
• Any necessary brackets
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• When replacing an engine or transmission you must make sure any dowels are installed correctlyduring re-assembly.
• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive train components.
• Do not reuse O-rings and copper washers.
• When turning crankshaft, turn it clockwise as viewed from the front of the engine.
• When tightening the nuts for the torque converter while securing the crankshaft pulley bolt, be sure
to confirm the tightening torque of the crankshaft pulley bolt. Refer to EM-159
.
• After converter is installed to drive plate, ro tate crankshaft several turns to check that transaxle
rotates freely without binding.
AWDIA0661GB
WCIA0616E
Revision: May 2010 2011 Versa