width NISSAN LATIO 2011 Service Owner's Manual

EC-614
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
Monitored item [Unit]
Description Remarks
ENG SPEED
[rpm] • Indicates the engine speed computed from the signals of the
crankshaft position sensor (POS) and camshaft position sen-
sor (PHASE). • Accuracy becomes poor if engine speed
drops below the idle rpm.
• If the signal is interrupted while the engine is
running, an abnormal value may be indicat-
ed.
MAS A/F SE-B1
[V] • The signal voltage of the mass air flow sensor is displayed. • When the engine is stopped, a certain value
is indicated.
• When engine is running, specification range is indicated in "SPEC".
B/FUEL SCHDL
[ms] • “Base fuel schedule” indicates the fuel injection pulse width
programmed into ECM, prior to any learned on board correc-
tion. • When engine is running, specification range
is indicated in "SPEC".
A/F ALPHA-B1
[%] • The mean value of the air-fuel ratio feedback correction fac-
tor per cycle is indicated. • When the engine is stopped, a certain value
is indicated.
• This data also includes the data for the air/
fuel ratio learning control.
• When engine is running, specification range is indicated in "SPEC".
COOLAN TEMP/S
[ ° C] or [ °F] • The engine coolant temperature (determined by the signal
voltage of the engine coolant temperature sensor) is dis-
played. • When the engine coolant temperature sen-
sor is open or short-circuited, ECM enters
fail-safe mode. The engine coolant temper-
ature determined by the ECM is displayed.
A/F SEN1 (B1)
[V] • The A/F signal computed from the input signal of the A/F sen-
sor 1 is displayed.
HO2S2 (B1)
[V] • The signal voltage of the heated oxygen sensor 2 is dis-
played.
HO2S2 MNTR(B1)
[RICH/LEAN] • Display of heated oxygen sensor 2 signal:
RICH: means the amount of oxygen after three way catalyst
is relatively small.
LEAN: means the amount of oxygen after three way catalyst
is relatively large. • When the engine is stopped, a certain value
is indicated.
VHCL SPEED SE
[km/h] or [mph] • The vehicle speed computed from the vehicle speed signal is
displayed.
BATTERY VOLT
[V] • The power supply voltage of ECM is displayed.
ACCEL SEN 1
[V] • The accelerator pedal position sensor signal voltage is dis-
played. • ACCEL SEN 2 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal.
ACCEL SEN 2
[V]
TP SEN 1-B1
[V]
• The throttle position sensor signal voltage is displayed. • TP SEN 2-B1 signal is converted by ECM in-
ternally. Thus, it differs from ECM terminal
voltage signal.
TP SEN 2-B1
[V]
FUEL T/TMP SE
[
° C] or [ °F] • The fuel temperature (determined by the signal voltage of the
fuel tank temperature sensor) is displayed.
INT/A TEMP SE
[ ° C] or [ °F] • The intake air temperature (determined by the signal voltage
of the intake air temperature sensor) is indicated.
EVAP SYS PRES
[V ] •
T
he signal voltage of EVAP control system pressure sensor
is displayed.
FUEL LEVEL SE
[V] • The signal voltage of the fuel level sensor is displayed.
START SIGNAL
[ON/OFF] • Indicates start signal status [ON/OFF] computed by the ECM
according to the signals of engine speed and battery voltage. • After starting the engine, [OFF] is displayed
regardless of the starter signal.
CLSD THL POS
[ON/OFF] • Indicates idle position [ON/OFF] computed by the ECM ac-
cording to the accelerator pedal position sensor signal.
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISEC-615
< SERVICE INFORMATION > [MR18DE]
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AIR COND SIG
[ON/OFF]
• Indicates [ON/OFF] condition of the air conditioner switch as
determined by the air conditioner signal.
P/N POSI SW
[ON/OFF] • Indicates [ON/OFF] condition from the park/neutral position
(PNP) signal.
PW/ST SIGNAL
[ON/OFF] • [ON/OFF] condition of the power steering system (deter-
mined by the signal sent from EPS control unit) is indicated.
LOAD SIGNAL
[ON/OFF] • Indicates [ON/OFF] condition from the electrical load signal.
ON: Rear window defogger switch is ON and/or lighting
switch is in 2nd position.
OFF: Both rear window defogger switch and lighting switch
are OFF.
IGNITION SW
[ON/OFF] • Indicates [ON/OFF] condition from ignition switch.
HEATER FAN SW
[ON/OFF] • Indicates [ON/OFF] condition from the heater fan switch sig-
nal.
BRAKE SW
[ON/OFF] • Indicates [ON/OFF] condition from the stop lamp switch sig-
nal.
INJ PULSE-B1
[msec] • Indicates the actual fuel injection pulse width compensated
by ECM according to the input signals. • When the engine is stopped, a certain com-
puted value is indicated.
IGN TIMING
[BTDC] • Indicates the ignition timing computed by ECM according to
the input signals. • When the engine is stopped, a certain value
is indicated.
CAL/LD VALUE
[%] • “Calculated load value” indicates the value of the current air-
flow divided by peak airflow.
MASS AIRFLOW
[g·m/s] • Indicates the mass airflow computed by ECM according to
the signal voltage of the mass air flow sensor.
PURG VOL C/V
[%] • Indicates the EVAP canister purge volume control solenoid
valve control value computed by the ECM according to the in-
put signals.
• The opening becomes larger as the value increases.
INT/V TIM(B1)
[ ° CA] • Indicates [
°CA] of intake camshaft advanced angle.
INT/V SOL(B1)
[%] • The control value of the intake valve timing control solenoid
valve (determined by ECM according to the input signal) is in-
dicated.
• The advance angle becomes larger as the value increases
AIR COND RLY
[ON/OFF] • The air conditioner relay control condition (determined by
ECM according to the input signals) is indicated.
FUEL PUMP RLY
[ON/OFF] • Indicates the fuel pump relay control condition determined by
ECM according to the input signals.
VENT CONT/V
[ON/OFF] • The control condition of the EVAP canister vent control valve
(determined by ECM according to the input signals) is indi-
cated.
ON: Closed
OFF: Open
THRTL RELAY
[ON/OFF] • Indicates the throttle control
motor relay control condition de-
termined by the ECM according to the input signals.
COOLING FAN
[HI/LOW/OFF] • Indicates the condition of the cooling fan (determined by
ECM according to the input signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1)
[ON/OFF] • Indicates [ON/OFF] condition of heated oxygen sensor 2
heater determined by ECM according to the input signals.
I/P PULLY SPD
[rpm] • Indicates the engine speed computed from the input speed
se ns
or si

gnal.
Monitored item [Unit]
Description Remarks
Revision: May 2010 2011 Versa

EC-624
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
DescriptionINFOID:0000000006341742
The specification (SP) value indicates the tolerance of
the value that is displayed in “SPEC” of “DATA MONI-
TOR” mode of CONSULT-III during normal operation of the Engine Control System. When the value in
“SPEC” of “DATA MONITOR” mode is within the SP value, the Engine Control System is confirmed OK. When
the value in “SPEC” of “DATA MONITOR” mode is NOT within the SP value, the Engine Control System may
have one or more malfunctions.
The SP value is used to detect malfunctions that may af fect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
• B/FUEL SCHDL (The fuel injection pulse width progr ammed into ECM prior to any learned on board correc-
tion)
• A/F ALPHA-B1 (The mean value of air-fuel ratio feedback correction factor per cycle)
• MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionINFOID:0000000006341743
• Vehicle driven distance: More than 5,000 km (3,107 miles)
• Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm
2, 14.25 - 15.12 psi)
• Atmospheric temperature: 20 - 30 °C (68 - 86° F)
• Engine coolant temperature: 75 - 95 °C (167 - 203° F)
• Transmission: Warmed-up
- A/T and CVT models: After the engine is warmed up to normal operating temperature, drive vehicle until
“FLUID TEMP SE” (A/T or CVT) fluid temperature sensor signal) indicates more than 60 °C (140° F).
- M/T models: After the engine is warmed up to normal operating temperature, drive vehicle for 5 minutes.
• Electrical load: Not applied
- Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight ahead.
• Engine speed: Idle
Inspection ProcedureINFOID:0000000006341744
NOTE:
Perform “SPEC” of “DATA MONITOR” mode in maximum scale display.
1. Perform EC-574, "
Basic Inspection".
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1” and “MAS A/F SE-B1” in “SPEC” of “DATA MONITOR” mode
with CONSULT-III.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-624, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006341745
OVERALL SEQUENCE
Revision: May 2010 2011 Versa

DTC P0075 IVT CONTROL SOLENOID VALVEEC-659
< SERVICE INFORMATION > [MR18DE]
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DTC P0075 IVT CONTROL SOLENOID VALVE
Component DescriptionINFOID:0000000006341789
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
CONSULT-III Reference Val
ue in Data Monitor ModeINFOID:0000000006341790
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000006341791
DTC Confirmation ProcedureINFOID:0000000006341792
NOTE:
If DTC Confirmation Procedure has been previously conducted, alw ays turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
1. Start engine and let it idle for 5 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-661, "
Diagnosis Procedure".
PBIB1842E
Monitor item Condition Specification
INT/V SOL (B1) • Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT), Neu-
tral (M/T)
•No load Idle
0% - 2%
When revving engine up to 2,000 rpm
quickly Approx. 0% - 90%
DTC No. Trouble diagnosis name
DTC detecting condition Possible cause
P0075
0075 Intake valve timing control
solenoid valve circuit An improper voltage is sent to the ECM
through intake valve timing control solenoid
valve. • Harness or connectors
(Intake valve timing control solenoid valve
circuit is open or shorted.)
• Intake valve timing control solenoid valve
Revision: May 2010 2011 Versa

PREPARATIONEM-7
< PREPARATION > [HR16DE]
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000005930920
Tool number
(Kent-Moore No.)
Tool name
Description
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing oil pan (lower and upper) etc.
KV10116200
(J-26336-B)
Valve spring compressor
1. KV10115900
(J-26336-20)
Attachment
2. KV10109220
( — )
Adapter Disassembling and assembling valve mecha-
nism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
(BT-8653-A)
Angle wrench Tightening bolts for bearing cap, cylinder
head, etc. in angle
KV10117100
( — )
Heated oxygen sensor wrench Loosening or tightening heated oxygen sen-
sor 1
For 22 mm (0.87 in) width hexagon nut
KV10107902
(J-38959)
Valve oil seal puller
1. KV10116100
( — )
Valve oil seal puller adapter Removing valve oil seal
KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 mm (0.79 in) dia. d: 8 mm (0.31 in) dia.
b: 13 mm (0.51 in) dia. e: 10.7 mm (0.421 in)
c: 10.3 mm (0.406 in) dia. f: 5 mm (0.20 in)
Unit: mm (in)
S-NT046
PBIC1650E
S-NT014
NT379
SZNT605
S-NT603
Revision: May 2010
2011 Versa

CYLINDER BLOCKEM-103
< DISASSEMBLY AND ASSEMBLY > [HR16DE]
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• Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width,
and place it in crankshaft axial direction, avoiding oil
holes.
• Install connecting rod bearings to connecting rod and c ap, and tighten connecting rod bolts to the specified
torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove connecting rod cap and bearing, and using the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-ified torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
• If the clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and crankshaft main
journal diameter to obtain the specified bearing oil clearance.
Refer to EM-108, "
MainBearing".
Method of Using Plastigage
• Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec-
ified torque. Refer to EM-90, "
Disassembly and Assembly".
CAUTION:
Never rotate crankshaft.
• Remove main bearing cap and bearings, and using the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT
PBIC1149E
Standard : Refer to EM-120, "Main Bearing".
PBIC1644E
PBIC1149E
Revision: May 2010 2011 Versa

EM-116
< SERVICE DATA AND SPECIFICATIONS (SDS) [HR16DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*1 : Diameter made by intersection point of conic angles α
1 and α2
*
2 : Diameter made by intersection point of conic angles α 2 and α3
*
3 : Machining data
VALVE SPRING
Cylinder BlockINFOID:0000000005930980
CYLINDER BLOCK
Valve seat outer diameter “d” Intake 31.497 - 31.513 (1.2400 - 1.2407) 31.997 - 32.013 (1.2597 - 1.2604)
Exhaust 25.997 - 26.013 (1.0235 - 1.0241) 26.497 - 26.513 (1.0432 - 1.0438)
Valve seat interference fit Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
Diameter “d1”*
1 Intake 29.0 (1.142)
Exhaust
23.0 (0.906)
Diameter “d2”*
2Intake 30.6 - 30.8 (1.205 - 1.213)
Exhaust 24.9 - 25.1 (0.980 - 0.988)
Angle “ α1” Intake
60°
Exhaust 45°
Angle “ α2” Intake
89°45 ′ - 90 °15 ′
Exhaust
Angle “ α3” Intake
120°
Exhaust
Contacting width “W”*
3Intake 1.05 - 1.35 (0.0413 - 0.0531)
Exhaust 1.25 - 1.55 (0.0492 - 0.0610)
Height “h” Intake
6.0 (0.236) 5.45 (0.215)
Exhaust 5.43 (0.214)
Depth “H” 6.0 (0.236)
ItemsStandard
Free height 42.26 mm (1.6638 in)
Installation height 32.40 mm (1.2756 in)
Installation load 136 - 154 N (13.9 - 15.7 kg, 31 - 35 lb)
Height during valve open 23.96 mm (0.9433 in)
Load with valve open 262 - 296 N (26.7 - 30.2 kg, 59 - 67 lb)
Items Limit
Valve spring squareness 1.8 mm (0.071 in)
Revision: May 2010 2011 Versa

EM-226
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
• Install connecting rod bearings (2) to connecting rod (3) and con-
necting rod bearing cap (1), and tighten connecting rod bolts to the
specified torque. Refer to EM-203, "
Disassembly and Assembly"
for tightening procedure.
• Measure the inner diameter of connecting rod bearing with an inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter)
– (Crankshaft pin journal diameter)
• If clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end diameter and crankshaft pin journal diameter to obtain specified bearing oil clearance. Refer to EM-212,
"How to Select Piston and Bearing".
Method of Using Plastigage
• Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
• Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the specified torque. Refer to EM-203, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Never rotate crankshaft.
• Remove connecting rod cap and bearing, and using the scale (A) on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
• Install main bearings (3) to cylinder block (1) and main bearing cap(2), and tighten main bearing cap bolts to the specified torque.
Refer to EM-203, "
Disassembly and Assembly" for the tightening
procedure.
• Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
A : Example
B : Inner diameter measuring direction
Standard : 0.037 - 0.047 mm (0.0015 - 0.0019 in)
Limit : 0.07 mm (0.0028 in)
PBIC3275J
PBIC3276J
A : Example
B : Inner diameter measuring direction
Standard: No. 1, 4 and 5 journals : 0.024 - 0.034 mm (0.0009 - 0.0013 in)
No. 2 and 3 journals : 0.012 - 0.022 mm (0.0005 - 0.0009 in)
Limit : 0.065 mm (0.0026 in)
PBIC3277J
Revision: May 2010 2011 Versa

CYLINDER BLOCKEM-227
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• If clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and
crankshaft main journal diameter to obtain specified bearing oil clearance. Refer to EM-212, "
How to Select
Piston and Bearing".
Method of Using Plastigage
• Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.
• Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
• Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the spec- ified torque. Refer to EM-203, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Never rotate crankshaft.
• Remove main bearing cap and bearings, and using the scale (A) on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT
• When main bearing cap is removed after being tightened to thespecified torque with main bearings (1) installed, the tip end of
bearing must protrude (B). Refer to EM-203, "
Disassembly and
Assembly" for the tightening procedure.
• If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT
• When connecting rod bearing cap is removed after being tightened to the specified torque with connecting rod bearings (1) installed,
the tip end of bearing must protrude. Refer to EM-203, "
Disassem-
bly and Assembly" for the tightening procedure (B).
• If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER
PBIC3278J
A : Example
Standard : There must be crush height.
PBIC3279J
A : Example
Standard : There must be crush height.
PBIC3279J
Revision: May 2010 2011 Versa

EM-234
< SERVICE INFORMATION >[MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Unit: mm (in)
Va l v e S e a t
Unit: mm (in)
*: Diameter made by intersection point of conic angles (
α1) and ( α2)
*
2 : Diameter made by intersection point of conic angles (α 2) and α3)
*
3 : Machining data
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
Items StandardLimit
Valve seal installed height 15.1 - 15.7 (0.594 - 0.618) —
Items StandardOversize [0.5 (0.02)] (Service)
Cylinder head seat recess diameter (D) Intake 34.700 - 34.727 (1.3661 - 1.3672) 35.200 - 35.227 (1.3858 - 1.3869)
Exhaust 28.700 - 28.727 (1.1299 - 1.1310) 29.200 - 29.227 (1.1496 - 1.1507)
Valve seat outer diameter (d) Intake 34.808 - 34.824 (1.3704 - 1.3710) 35.308 - 35.324 (1.3901 - 1.3907)
Exhaust 28.808 - 28.824 (1.1342 - 1.1348) 29.308 - 29.324 (1.1539 - 1.1545)
Valve seat interference fit 0.081 - 0.124 (0.0032 - 0.0049)
Diameter (d1)*
1Intake 31.8 (1.252)
Exhaust 25.3 (0.996)
Diameter (d2)*
2Intake 33.1 - 33.6 (1.303 - 1.323)
Exhaust 26.9 - 27.4 (1.059 - 1.079)
Angle ( α1) Intake
60°
Exhaust 45°
Angle ( α2) 88°45 ′ - 90 °15 ′
Angle ( α3) 120°
Contacting width (W)*
3Intake 1.0 - 1.4 (0.039 - 0.055)
Exhaust 1.2 - 1.6 (0.047 - 0.063)
Height (h) Intake
5.9 - 6.0 (0.232 - 0.236) 5.03 - 5.13 (0.1980 - 0.2020)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Depth (H) Intake
6.04 (0.2378)
Exhaust 6.05 (0.2382)
PBIC2745E
Items Standard Limit
Camshaft journal oil clearance No. 1
0.045 - 0.086 (0.0018 - 0.0034)
0.15 (0.0059)
No. 2, 3, 4, 5 0.030 - 0.071 (0.0012 - 0.0028)
Camshaft bracket inner diameter No. 1
28.000 - 28.021 (1.1024 - 1.1032) —
No. 2, 3, 4, 5 25.000 - 25.021 (0.9843 - 0.9851) —
Revision: May 2010 2011 Versa