2008 NISSAN LATIO check oil

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-189
< SERVICE INFORMATION >
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NG >> GO TO 5.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Shift valve A
- Overrun clutch control valve
- Shift solenoid valve A
- Overrun clutch solenoid valve
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Servo piston assembly
- Brake band
- Torque converter. Refer to AT-240, "
Disassembly" .
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Shift valve A
- Overrun clutch control valve
- Shift solenoid valve A
- Pilot valve
- Pilot filter
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to AT-55, "
Cruise Test - Part 1" and AT-58, "Cruise Test - Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
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.
A/T Does Not Perform Lock-upINFOID:0000000001703346
SYMPTOM:
A/T does not perform lock-up at the specified speed on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .

AT-190
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3.DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check following items:
- Torque converter clutch control valve
- Torque converter clutch solenoid valve
- Torque converter relief valve
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Torque converter. Refer to AT-240, "
Disassembly" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again. Refer to AT-55, "
Cruise Test - Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
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.
A/T Does Not Hold Lock-up ConditionINFOID:0000000001703347
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .
NO >> GO TO 2.
2.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-191
< SERVICE INFORMATION >
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3.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Torque converter clutch control valve
- Torque converter clutch solenoid valve
- Pilot valve
- Pilot filter
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Torque converter. Refer to AT-240, "
Disassembly" .
- Oil pump assembly. Refer to AT-260, "
Oil Pump" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
4.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Torque converter clutch control valve
- Torque converter clutch solenoid valve
- Pilot valve
- Pilot filter
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again. Refer to AT-55, "
Cruise Test - Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
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.
Lock-up Is Not ReleasedINFOID:0000000001703348
SYMPTOM:
Lock-up is not released when accelerator pedal is released on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .
NO >> GO TO 2.
2.CHECK SYMPTOM
Check again. Refer to AT-55, "
Cruise Test - Part 1" .
OK or NG

AT-192
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
OK >>INSPECTION END
NG >> GO TO 3.
3.CHECK TCM
1. Check TCM input/output signals. Refer to AT-71, "
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.
Engine Speed Does Not Return to Idle (Light Braking D4→ D3)INFOID:0000000001703349
SYMPTOM:
Engine speed does not smoothly return to idle when A/T shifts from D4 to D3 on “Cruise Test — Part
1”.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-73, "
CONSULT-III Function (A/T)" or AT-78, "Diagnosis Procedure without
CONSULT-III" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT-73, "CONSULT-III Function (A/T)" or AT-78, "Diag-
nosis Procedure without CONSULT-III" .
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Overrun clutch control valve
- Overrun clutch reducing valve
- Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT-240, "
Disassembly" .
4. Check the following items:
- Overrun clutch assembly. Refer to AT-288, "
Forward and Overrun Clutches" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
- Overrun clutch control valve
- Overrun clutch reducing valve
- Overrun clutch solenoid valve
OK or NG

AT-196
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
OK >> GO TO 3
NG >> Check PNP switch. Refer to AT-171, "
Component Inspection" .
2.CHECK PNP SWITCH CIRCUIT
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-
87, "Wiring Diagram - AT - PNP/SW" .
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 3
NG >> Check PNP switch. Refer to AT-171, "
Component Inspection" .
3.CHECK A/T POSITION
Check A/T position. Refer to AT-207, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T Position" .
4.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT- 9 6
and/or AT-149 .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits.
5.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
Selector lever positionTe r m i n a l
36 35 34 27 26
“P”, “N” B0000
“R” 0B000
“D” 0 0 B 0 0
“2” 000B0
“1” 0000B
SCIA7162E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
< SERVICE INFORMATION >
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2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-
87, "Wiring Diagram - AT - PNP/SW" .
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 5
NG >> Check PNP switch. Refer to AT-171, "
Component Inspection" .
5.CHECK A/T POSITION
Check A/T position. Refer to AT-207, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 6.
NG >> Adjust A/T position. Refer to AT-207, "
Adjustment of A/T Position" .
6.CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT- 9 6
and/or AT-149 .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits.
7.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-230, "
Component" .
2. Check A/T fluid condition. Refer to AT-48, "
Inspections Before Trouble Diagnosis" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators" .
2. Check the following.
Selector lever positionTe r m i n a l
36 35 34 27 26
“P”, “N” B 0 0 0 0
“R” 0B000
“D” 0 0 B 0 0
“2” 0 0 0 B 0
“1” 0 0 0 0 B
SCIA7162E

AT-216
< SERVICE INFORMATION >
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
Control Valve Assembly and AccumulatorsINFOID:0000000001703366
COMPONENTS
REMOVAL AND INSTALLATION
Removal
1. Disconnect the battery negative terminal.
2. Remove engine under cover and fender protector (LH). Refer to EI-23, "
Removal and Installation".
3. Drain the A/T fluid. Refer to AT- 1 5
.
4. Remove oil pan and oil pan gasket.
5. Check for foreign materials in oil pan to help determine cause of
malfunction. If the ATF is very dark, smell burned or contains for-
eign particles, friction 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 ATF contains frictional material (clutch, bands, etc.),
replace radiator and flush cooler line using cleaning sol-
vent and compressed air after repair of A/T. Refer to CO-
11.
6. Remove magnets from oil pan.
1. A/T 2. O-ring 3. Return spring
4. Control valve assembly 5. Oil pan gasket 6. Oil pan
7. Drain plug gasket 8. Drain plug 9. Magnet
10. Oil pan fitting bolt 11. Snap ring 12. O-ring
13. Servo release accumulator piston 14. N-D accumulator piston 15. O-ring
16. Return spring 17. Lip seal
SCIA8024E
SCIA8025E

ON-VEHICLE SERVICE
AT-219
< SERVICE INFORMATION >
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• Inspect each return spring, and replace if damaged, deformed or
worn. Refer to AT-343, "
Accumulator" for free length (L1) and
length (L
2).
(1): Return spring (Servo release accumulator)
(2): Return spring (N-D accumulator)
CAUTION:
Do not remove spring retainer (3).
Installation
Installation is in the reverse order of removal.
CAUTION:
• Completely remove all moisture, oil and old gasket from the oil pan gasket mounting surface of tran-
saxle case and oil pan.
• Do not reuse O-rings, lip seals, oil pan gasket and oil pan bolts.
• Apply ATF to manual valve, O-rings, lip seals and sliding surfaces of the transaxle case.
NOTE:
• Set manual shaft in “N” position, then align manual plate (1) with
groove in manual valve (2).
• After installing control valve assembly to transaxle case, make
sure that selector lever can be moved to all positions.
• After completing installation, check for A/T fluid leakage and A/T
fluid level. Refer to MA-22, "
Checking A/T Fluid".
Park/Neutral Position (PNP) SwitchINFOID:0000000001703367
COMPONENTS
SCIA6955E
SCIA7090E