weight NISSAN LATIO 2008 Service Repair Manual

AT-8
< SERVICE INFORMATION >
PRECAUTIONS
• Be sure to turn the ignition switch OFF and disconnect battery negative cable from battery negative
terminal before any repair or inspection work. The open/short circuit of related switches, sensors,
solenoid valves, etc. will cause the MIL to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connectors are free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
PrecautionINFOID:0000000001703154
•Before connecting or disconnecting the TCM harness connec-
tor, turn ignition switch OFF and disconnect the battery cable
from the negative terminal. Failure to do so may damage the
TCM. Because battery voltage is applied to TCM even if igni-
tion switch is turned off.
•When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM pin
terminal, when connecting pin connectors.
•Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. (See page AT-71, "
TCM Terminal and Reference Value".)
•After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) Confirmation Procedure”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.
• Before proceeding with disassembly, thoroughly clean the outside
of the transaxle. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free cloth or towels for wiping parts clean. Common shop
rags can leave fibers that could interfere with the operation of the A/T.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
SEF289H
AAT470A
MEF040DA

DTC P0731 A/T 1ST GEAR FUNCTION
AT-107
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1. Remove control valve assembly. Refer to AT-216, "Control Valve Assembly and Accumulators".
- Shift solenoid valve A
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminals and ground. Refer to
AT-135, "
Wiring Diagram - AT - SSV/A" and AT-140, "Wiring Dia-
gram - AT - SSV/B".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-263, "
Control Valve Assembly".
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve assembly.
4.CHECK DTC
Perform AT-105, "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.
SCIA3595E

DTC P0732 A/T 2ND GEAR FUNCTION
AT-109
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-Make sure that “GEAR” shows “3” or “4” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 45 to
50 km/h (28 to 31 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETE”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-109, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
-Make sure that “GEAR” shows “2” when depressing accelerator pedal to WOT.
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS” for
“A/T”. In case a DTC other than “P0732 A/T 2ND GR FNCTN” is shown, refer to AT-73, "
CONSULT-
III Function (A/T)".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-109, "
Diagnosis Procedure".
Refer to AT-61, "
Vehicle Speed at Which Gear Shifting Occurs".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000001703240
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-140, "
Wiring Diagram -
AT - SSV/B".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
140, "Wiring Diagram - AT - SSV/B".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-263, "
Control Valve Assembly".
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “A/T 2ND GR FNCTN” exists. 4 → 3 → 3 → 4
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve B F30 1 - Ground 5 - 20 Ω
SCIA3454E
SCIA2058E

DTC P0733 A/T 3RD GEAR FUNCTION
AT-113
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2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminals and ground. Refer to
AT-135, "
Wiring Diagram - AT - SSV/A" and AT-140, "Wiring Dia-
gram - AT - SSV/B".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-263, "
Control Valve Assembly".
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve assembly.
4.CHECK DTC
Perform AT- 111 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.
SCIA3595E

DTC P0734 A/T 4TH GEAR FUNCTION
AT-117
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- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 6.
NG >> Repair control valve.
6.CHECK SHIFT-UP (D3 TO D4)
During AT-55, "
Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> Check control valve again. Repair or replace control
valve assembly.
7.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators".
- Line pressure solenoid valves
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-130, "
Wiring Diagram -
AT - L P S V".
OK or NG
OK >> GO TO 8.
NG >> Replace solenoid valve assembly.
8.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-216, "
Control Valve Assembly and Accumulators".
- Line pressure solenoid valves
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
130, "Wiring Diagram - AT - LPSV".
OK or NG
OK >> GO TO 9.
NG >> Replace solenoid valve assembly.
9.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-263, "
Control Valve Assembly".
2. Check line pressure circuit valves for sticking.
- Pilot valve
- Shift solenoid valve A
- Shift solenoid valve B
OK or NG
OK >> GO TO 10.
SCIA7190E
Solenoid valve Connector Terminal Resistance (Approx.)
Line pressure solenoid
valveF30 4 - Ground 2.5 - 5 Ω
SCIA3457E
SCIA3275E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-125
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5. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain the following conditions continuously
until “TESTING” has turned to “COMPLETE”. (It will take approximately 30 seconds after “TESTING”
shows.)
THROTTLE POSI: 1.0/8 - 2.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
TCC S/V DUTY: More than 94%
VEHICLE SPEED: Constant speed of more than 80 km/h (50 MPH)
-Make sure that “GEAR” shows “4”.
-For shift schedule, refer to AT-61, "
Vehicle Speed at Which Gear Shifting Occurs".
-If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS”. In
case a DTC other than “P0744 A/T TCC S/V FNCTN” is shown, refer to AT-73, "
CONSULT-III Func-
tion (A/T)".
6. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-125, "
Diagnosis Procedure".
Refer to AT-61, "
Vehicle Speed at Which Lock-up Occurs/Releases".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000001703265
1.CHECK SHIFT-UP (D3 TO D4)
During AT-55, "
Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Perform line pressure test. Refer to AT-48, "
Inspections Before Trouble Diagnosis".
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-263, "
Control Valve Assembly".
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve.
4.CHECK SHIFT-UP (D3 TO D4)
SCIA7190E

HOOD
BL-17
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Be careful not to bend the cable too much, keeping the
radius 100 mm (3.94 in) or more.
2. Check that the cable is not offset from the positioning grommet,
and push the grommet into the panel hole securely.
3. Apply the sealant around the grommet (at * mark).
4. Install cable securely to lock.
5. After installing, check hood lock adjustment and hood opener
operation.
Hood Lock Control InspectionINFOID:0000000001703950
CAUTION:
If the hood lock cable is bent or deformed, replace it.
1. Check that the secondary latch is properly engaged with the secondary striker (B: 6.8 mm (0.268 in) with
hood's own weight.
2. While operating the hood release handle, carefully check that the front end of the hood is raised by
approx. 20 mm (0.79 in). Also check that the hood release handle returns to the original position.
3. Check that the secondary hood release operates at 29.4 N (3.0 kg) or below.
4. Confirm static closing force of the hood is 343 – 441 N·m (35 – 44 kg-m).
PIIB5801E
PIIB6537E
1. Hood striker 2. Primary latch 3. Secondary striker
4. Secondary latch
PIIB5794E

DOOR
BL-147
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1.
Removal and InstallationINFOID:0000000001704046
FRONT DOOR
CAUTION:
• When removing and installing the front door assembly, support the door with a jack and cloth to pro-
tect the door and body.
• When removing and installing front door assembly, be sure to carry out the fitting adjustment. Refer
to BL-144, "
Fitting Adjustment".
• After installing, apply touch-up paint onto the head of the hinge nuts.
• Check the hinge rotating part for lubrication. If necessary, apply “body grease”.
• Operate with two workers, because of its heavy weight.
• Check front door open/close operation after installation.
Removal
1. Remove dash side finisher. Refer to EI-38, "Removal and Installation".
2. Disconnect the front door harness connectors.
3. Remove the front door harness grommet, and then remove the
harness from the vehicle.
4. Remove the check link bolt.20 N·m (2.2 kg-m, 16 ft-lb)
LIIA2641E
PIIB6518E
14.7 N·m (1.5 kg-m, 11 ft-lb)
PIIB6543E

BL-148
< SERVICE INFORMATION >
DOOR
5. Remove the hinge nuts and then the door assembly.
Installation
Installation is in the reverse order of removal.
REAR DOOR
CAUTION:
• When removing and installing the rear door assembly, support the door with a jack and cloth to pro-
tect the door and body.
• When removing and installing rear door assembly, be sure to carry out the fitting adjustment. Refer
to BL-144, "
Fitting Adjustment".
• After installing, apply touch-up paint onto the head of the hinge nuts.
• Check the hinge rotating part for poor lubrication. If necessary, apply “body grease”.
• Operate with two workers, because of its heavy weight.
• Check rear door open/close operation after installation.
Removal
1. Remove the rear door harness grommet.
2. Disconnect the rear door harness connector. 24.5 N·m (2.5 kg-m, 18 ft-lb)
PIIB6519E
PIIB6520E
PIIB6521E

BODY REPAIR
BL-265
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Precaution in Repairing High Strength SteelINFOID:0000000001704125
High strength steel is used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
HIGH STRENGTH STEEL (HSS) USED IN NISSAN VEHICLES
SP130 is the most commonly used HSS.
SP150 HSS is used only on parts that require much more strength.
Read the Following Precautions When Repairing HSS:
1. Additional points to consider
LIIA2588E
Tensile strength Nissan/Infiniti designation Major applicable parts
373 N/mm
2
(38kg/mm2 ,54klb/sq in)SP130• Front & rear side member assembly
• Front side member closing plate assembly
• Front strut housing
• Lower dash
• Rear seat crossmember
• Other reinforcements
785-1350 N/mm
2
(80-138kg/mm2 , 114-196klb/sq in)SP150• Center pillar reinforcement
(Component part)
• Outer roof side rail reinforcement
(Component part)