2011 NISSAN LATIO low oil pressure

AT-184
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
2. Check A/T fluid condition. Refer to AT-51, "Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-257, "
Disassembly" .
2. Check the following items:
- Forward clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
- Overrun clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
- Reverse clutch assembly. Refer to AT-297, "
Reverse Clutch" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again. Refer to AT-56, "
Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to AT-75, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Large Shock "N" → "R" PositionINFOID:0000000005928251
SYMPTOM:
There is a large shock when cha nging from “N” to “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-77, "
CONSULT-III Function (TRANSMISSION)" or AT-82, "Diagnosis Pro-
cedure without CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-77, "CONSULT-III Function (TRANSMISSION)" or
AT-82, "
Diagnosis Procedure without CONSULT-III" .
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-51, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil- ter)
- Line pressure solenoid valve
- Oil pump assembly. Refer to AT-278, "
Oil Pump" .
OK or NG
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-185
< SERVICE INFORMATION >
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OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again. Refer to AT-56, "
Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5.CHECK TCM
1. Check TCM input/output signals. Refer to AT-75, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Creep Backward in "R" PositionINFOID:0000000005928252
SYMPTOM:
Vehicle does not creep backwar d when selecting “R” position.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT-17, "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer to AT-51, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valv e, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to AT-257, "
Disassembly" .
4. Check the following item:
- Oil pump assembly. Refer to AT-278, "
Oil Pump" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK STALL REVOLUTION
Check stall revolution with selector lever in “1” and “R” positions. Refer to AT-51, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 6.
OK in “1” position, NG in “R” position>>GO TO 5.
NG in both “1” and “R” positions>>GO TO 7.
5.DETECT MALFUNCTIONING ITEM
Revision: May 2010 2011 Versa

AT-186
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
1. Disassemble A/T. Refer to AT-257, "Disassembly" .
2. Check the following items:
- Low & reverse brake assembly. Refer to AT-314, "
Low & Reverse Brake" .
- Reverse clutch assembly. Refer to AT-297, "
Reverse Clutch" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-237, "
Component" .
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-257, "
Disassembly" .
2. Check the following items:
- Reverse clutch assembly. Refer to AT-297, "
Reverse Clutch" .
- High clutch assembly. Refer to AT-302, "
High Clutch" .
- Low & reverse brake assembly. Refer to AT-314, "
Low & Reverse Brake" .
- Forward clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
- Overrun clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK SYMPTOM
Check again. Refer to AT-56, "
Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.
9.CHECK TCM
1. Check TCM input/output signals. Refer to AT-75, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Creep Forward in "D", "2" or "1" PositionINFOID:0000000005928253
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
DIAGNOSTIC PROCEDURE
1.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT-17, "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-51, "
Inspections Before Trouble
Diagnosis" .
OK or NG
OK >> GO TO 4.
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-187
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NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valv e, pressure modifier valve, pilot valve and pilot fil-
ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to AT-257, "
Disassembly" .
4. Check the following item:
- Oil pump assembly. Refer to AT-278, "
Oil Pump" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK STALL REVOLUTION
Check stall revolution with selector lever in “D” position. Refer to AT-51, "
Inspections Before Trouble Diagno-
sis" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Disassemble A/T. Refer to AT-257, "
Disassembly" .
2. Check the following items:
- Oil pump assembly. Refer to AT-278, "
Oil Pump" .
- Forward clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
- Forward one-way clutch. Refer to AT-318, "
Rear Internal Gear and Forward Clutch Hub" .
- Low one-way clutch. Refer to AT-257, "
Disassembly" .
- Torque converter. Refer to AT-257, "
Disassembly" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-237, "
Component" .
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
7.CHECK SYMPTOM
Check again. Refer to AT-56, "
Check at Idle" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to AT-75, "
TCM Terminal and Reference Value" .
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Cannot Be Started from D1INFOID:0000000005928254
SYMPTOM:
Vehicle cannot be started from D1 on “Cruise Test — Part 1”.
Revision: May 2010 2011 Versa

AT-188
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1.CHECK SYMPTOM
Check symptom. Refer to AT-56, "
Check at Idle" .
Is
“Vehicle Dose Not Creep Backward in “R” Position” OK?
OK >> GO TO 2.
NG >> Go to AT-185, "
Vehicle Does Not Creep Backward in "R" Position" .
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-77, "
CONSULT-III Function (TRANSMISSION)" or AT-82, "Diagnosis Pro-
cedure without CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-77, "CONSULT-III Function (TRANSMISSION)" or
AT-82, "
Diagnosis Procedure without CONSULT-III" .
NO >> GO TO 3.
3.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-415, "
Description" (HR16DE), EC-982, "Component
Description" (MR18DE).
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor.
4.CHECK LINE PRESSURE
Check line pressure at stall point with selector lever in “D” position. Refer to AT-51, "
Inspections Before Trou-
ble Diagnosis" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Shift valve A
- Shift valve B
- Shift solenoid valve A
- Shift solenoid valve B
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to AT-257, "
Disassembly" .
4. Check the following items:
- Forward clutch assembly. Refer to AT-307, "
Forward and Overrun Clutches" .
- Low one-way clutch. Refer to AT-257, "
Disassembly" .
- Forward one-way clutch. Refer to AT-318, "
Rear Internal Gear and Forward Clutch Hub" .
- High clutch assembly. Refer to AT-302, "
High Clutch" .
- Torque converter. Refer to AT-257, "
Disassembly" .
- Oil pump assembly. Refer to AT-278, "
Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
6.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-237, "
Component" .
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.
Revision: May 2010 2011 Versa

DISASSEMBLYAT-259
< SERVICE INFORMATION >
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9. Set manual shaft (1) in “P” position.
10. Remove transmission range switch (2) from transaxle case. : Bolt
11. Remove oil pan bolts.
12. Remove oil pan and oil pan gasket.
13. Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, frictional material (clutches, band) may need
replacement. A tacky film that will not wipe clean indicates var-
nish build up. Varnish can cause valves, servo, and clutches to
stick and can inhibit pump pressure.
•If frictional material is detected, replace radiator after
repair of A/T. Refer to CO-40
.
14. Remove magnets from oil pan.
15. Remove control valve assembly according to the following procedures.
a. Remove snap ring (1) from terminal body (2). CAUTION:
Do not expand snap ring (1) excessively.
b. Push terminal body (2) into transaxle case.
c. Remove control valve assembly fitting bolts (A), (B) and ( C).
Bolt length, number and location:
d. Remove control valve assembly from transaxle case.
CAUTION:
Be careful not to drop manual valve.
SCIA5904J
SCIA8025E
SCIA6030J
Bolt symbol ABC
Bolt length “ ” [mm (in)] 40.0 mm
(1.575 in) 33.0 mm
(1.299 in) 43.5 mm
(1.713 in)
Number of bolts 562
SCIA5911J
Revision: May 2010 2011 Versa

AT-282
< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
DISASSEMBLY
Place control valve assembly with control valve upper body (1) side
down. Remove bolts (A) to (G), reamer bolts (F), nuts and support
plates (4) according to the following procedures. Separate control
valve upper body (1), control valve inter body (2) and control valve
lower body (3).
1. Pilot filter2. Control valve upper body 3. Steel ball
4. Separating plate 5. Control valve inter body 6. Steel ball
7. Support plate 8. Separating plate9. Control valve lower body
10. Line pressure relief valve spring 11. Check ball 12. Torque converter pressure
holding spring
13. Solenoid valve assembly 14. Terminal body 15. O-ring
16. O-ring 17. O-ring18. Oil strainer
SCIA8407J
SCIA7058E
Revision: May 2010 2011 Versa

REPAIR FOR COMPONENT PARTSAT-315
< SERVICE INFORMATION >
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4. Set Tool (A) on spring retainer assembly, and remove snap ring from transaxle case while compressing spring retainer assem-
bly.
CAUTION:
Set Tool directly over return springs.
5. Remove spring retainer assembly from transaxle case. CAUTION:
Do not remove return springs from spring retainer.
6. Apply compressed air into the oil hole on transaxle case as shown in the figure to raise piston while strongly pressing the
whole low & reverse brake piston by hand. When applying com-
pressed air, strongly press the whole piston and adjust the pres-
sure so that it is raised evenly. Portion (A) (low & reverse brake
pressure) especially tends to tilt.
CAUTION:
Apply air gradually and allow low & reverse brake piston to
come out evenly.
7. Remove low & reverse brake piston from transaxle case by turn- ing it.
8. Inspect transaxle case. Replace if damaged or worn.
9. Remove seal lip (1) and D-ring (2) from low & reverse brake pis- ton (3).
INSPECTION
Low & Reverse Brake Snap Rings
Check for deformation, fatigue or damage. Replace if necessary.
Low & Reverse Brake Drive Plates
Tool number A: KV31103200 (J-39186)
SCIA7990E
SCIA6346J
SCIA6516J
Revision: May 2010 2011 Versa