2016 NISSAN NOTE power steering

EM-68
< REMOVAL AND INSTALLATION >[HR16DE]
CAMSHAFT
• Before starting engine, check oil/fluid levels, including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leak s of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
InspectionINFOID:0000000012431722
INSPECTION AFTER REMOVAL
Oil Filter
• Check that there is no foreign material on the oil filter (1) and check it for clogging.
• Check the oil filter for damage.
• If there is some damage, replace the oil filter, the plug, and the washer as a set.
CAUTION:
Do not reuse the washer.
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour- nals of camshaft.
CAUTION:
Do not support No. 1 journal (on the side of camshaft
sprocket) because it has a differe nt diameter from the other
four locations.
2. Set a suitable tool vertically to No. 3 journal.
3. Turn camshaft to one direction, and measure the camshaft runout using suitable tool. (Total indicator reading)
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
PBIC3693E
PBIC2499E
Revision: August 2015 2016 Versa Note

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CYLINDER HEADEM-85
< REMOVAL AND INSTALLATION > [HR16DE]
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*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaks Leaks
Exhaust gas —Leaks —
Revision: August 2015 2016 Versa Note

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EM-90
< UNIT REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
Revision: August 2015 2016 Versa Note

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EC-1
ENGINE
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SECTION EC
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CONTENTS
ENGINE CONTROL SYSTEM
HR16DE
PRECAUTION ....... ........................................
8
PRECAUTIONS .............................................. .....8
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
8
On Board Diagnostic (OBD) System of Engine
and CVT ....................................................................
8
General Precautions .................................................9
PREPARATION ...........................................12
PREPARATION .............................................. ....12
Special Service Tools .......................................... ....12
Commercial Service Tools ......................................12
SYSTEM DESCRIPTION .............................14
COMPONENT PARTS ................................... ....14
ENGINE CONTROL SYSTEM ............................... ....14
ENGINE CONTROL SYSTEM :
Component Parts Location ....................................
14
ENGINE CONTROL SYSTEM : Component De-
scription ............................................................... ....
17
Accelerator Pedal Position Sensor ..........................18
Air Fuel Ratio Sensor 1 ...........................................19
Air Fuel Ratio Sensor 1 Heater ...............................19
Camshaft Position Sensor .......................................19
Clutch Pedal Position Switch ..................................20
Cooling Fan .............................................................20
Crankshaft Position Sensor .....................................20
ECM .................................................................... ....20
Electric Throttle Control Actuator ............................21
Engine Coolant Temperature Sensor ......................21
Engine Oil Pressure Sensor ....................................21
Engine Oil Temperature Sensor ..............................21
EVAP Canister Purge Volume Control Solenoid
Valve ................................................................... ....
22
EVAP Canister Vent Control Valve .........................22
EVAP Control System Pressure Sensor ..................22
Exhaust Valve Timing Cont rol Solenoid Valve ........23
Fuel Injector ......................................................... ....23
Fuel Pump ...............................................................23
Heated Oxygen Sensor 2 ........................................24
Heated Oxygen Sensor 2 Heater ............................24
Ignition Coil With Power Transistor .........................24
Intake Air Temperature Sensor ...............................24
Intake Valve Timing Control Solenoid Valve ...........25
Knock Sensor ...................................................... ....25
Battery Current Sensor (With Battery Tempera-
ture Sensor) .............................................................
25
Malfunction Indicator Lamp (MIL) ............................26
Mass Air Flow Sensor ..............................................26
Oil Pressure Warning Lamp ....................................26
Refrigerant Pressure Sensor ............................... ....27
Stop Lamp Switch & ASCD Brake Switch ...............27
Throttle Control Motor .......................................... ....27
Throttle Control Motor Relay ...................................27
Throttle Position Sensor ..........................................27
ASCD Steering Switch .............................................27
STRUCTURE AND OPERATION .....................28
Positive Crankcase Ventilation ................................28
On Board Refueling Vapor Recovery (ORVR) ........29
SYSTEM ............................................................30
ENGINE CONTROL SYSTEM ........................ ...........30
ENGINE CONTROL SYSTEM : System Diagram ....30
ENGINE CONTROL SYSTEM : System Descrip-
tion ...........................................................................
31
MULTIPORT FUEL INJECTION SYSTEM ................31
MULTIPORT FUEL INJECTION SYSTEM :
System Diagram ................................................. ....
32
MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description ........................................................
32
ELECTRIC IGNITION SYSTEM .................................35
ELECTRIC IGNITION SYSTEM :
System Diagram ................................................. ....
35
Revision: August 2015 2016 Versa Note

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EC-18
< SYSTEM DESCRIPTION >[HR16DE]
COMPONENT PARTS
Accelerator Pedal Position Sensor
INFOID:0000000012431271
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signals to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
Engine oil pressure sensor EC-21, "Engine Oil Pressure Sensor"
Engine oil temperature sensorEC-21, "Engine Oil Temperature Sensor"
EVAP canister purge volume control solenoid valveEC-22, "EVAP Canister Purge Volume Control Solenoid Valve"
EVAP canister vent control valveEC-22, "EVAP Canister Vent Control Valve"
EVAP control system pressure sensorEC-22, "EVAP Control System Pressure Sensor"
Exhaust valve timing control position sensor EC-19, "Camshaft Position Sensor"
Exhaust valve timing control solenoid valveEC-23, "Exhaust Valve Timing Control Solenoid Valve"
Fuel injectorEC-23, "Fuel Injector"
Fuel pumpEC-23, "Fuel Pump"
Heated oxygen sensor 2EC-24, "Heated Oxygen Sensor 2"
Heated oxygen sensor 2 heaterEC-24, "Heated Oxygen Sensor 2 Heater"
Ignition coil (with power transistor)EC-24, "Ignition Coil With Power Transistor"
Intake air temperature sensorEC-24, "Intake Air Temperature Sensor"
Camshaft position sensorEC-19, "Camshaft Position Sensor"
Intake valve timing control solenoid valveEC-25, "Intake Valve Timing Control Solenoid Valve"
Knock sensorEC-25, "Knock Sensor"
Mass air flow sensorEC-26, "Mass Air Flow Sensor"
PCV valveEC-28, "Positive Crankcase Ventilation"
Refrigerant pressure sensorEC-27, "Refrigerant Pressure Sensor"
Stop lamp switchEC-27, "Stop Lamp Switch & ASCD Brake Switch"
Throttle control motorEC-27, "Throttle Control Motor"
Throttle control motor relay EC-27, "Throttle Control Motor Relay"
Throttle position sensor EC-27, "Throttle Position Sensor"
ASCD steering switchEC-27, "ASCD Steering Switch"
ASCD brake switchEC-27, "Stop Lamp Switch & ASCD Brake Switch"
Clutch pedal position switchEC-20, "Clutch Pedal Position Switch"
Active grille shutterEXT-10, "ACTIVE GRILLE SHUTTER SYSTEM : Active grille shutter"
Component Reference
PBIB1741E
Revision: August 2015 2016 Versa Note

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COMPONENT PARTSEC-27
< SYSTEM DESCRIPTION > [HR16DE]
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Refrigerant Pressure SensorINFOID:0000000012431299
The refrigerant pressure sensor is installed at the c
ondenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Stop Lamp Switch & ASCD Brake SwitchINFOID:0000000012431300
Stop lamp switch and ASCD brake switch are installed to brake pedal bracket.
ECM detects the state of the brake pedal by those two types of input (ON/OFF signal).
Throttle Control MotorINFOID:0000000012431301
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle valve in response to driving conditions via the throttle control motor.
Throttle Control Motor RelayINFOID:0000000012431302
Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and batte ry voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.
Throttle Position SensorINFOID:0000000012431303
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometer which transform the throttle valve position into
output voltage, and emit the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and controls the throttle valve in response to driving conditions
via the throttle control motor.
ASCD Steering SwitchINFOID:0000000012431304
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
PBIB2657E
Brake pedal ASCD brake switch Stop lamp switch
Released ONOFF
Depressed OFFON
PBIB0145E
Revision: August 2015 2016 Versa Note

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SYSTEMEC-37
< SYSTEM DESCRIPTION > [HR16DE]
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AIR CONDITIONING CUT CONTROL : System DiagramINFOID:0000000012431313
AIR CONDITIONING CUT CONTROL : System DescriptionINFOID:0000000012431314
INPUT/OUTPUT SIGNAL CHART
*1: ECM determines the start signal status
by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM through CAN communication line.
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
JSBIA0320GB
Sensor Input signal to ECM ECM functionActuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed
*1
Piston position
A/C compressor request
signalIPDM E/R
↓
Air conditioner relay
↓
Compressor
Engine coolant temperature sensor Engine coolant temperature
Accelerator pedal position sensor Accelerator pedal position
Battery
Battery voltage
*1
Refrigerant pressure sensor Refrigerant pressure
EPS control unit EPS operation signal
*2
Combination meterVehicle speed signal*2
BCMA/C ON signal*2
Blower fan signal*2
Revision: August 2015
2016 Versa Note

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EC-62
< SYSTEM DESCRIPTION >[HR16DE]
DIAGNOSIS SYSTEM (ECM)
MAS A/F SE-B1
VThe signal voltage of the mass air flow sensor is dis-
played. • When the engine is stopped, a certain
value is indicated.
• When engine is running, specification range is indica ted in “SPEC”.
B/FUEL SCHDL ms“Base fuel schedule” indicates the fuel injection
pulse width programmed into ECM, prior to any
learned on board correction. When engine is running, specification
range is indicated in “SPEC”.
A/F ALPHA-B1 %The mean value of the air-fuel ratio feedback cor-
rection factor per cycle is indicated. • When the engine is stopped, a certain
value is indicated.
• When engine is running, specification
range is indica ted in “SPEC”.
• This data also includes the data for the air-fuel ratio learning control.
COOLAN TEMP/S °C or °F The engine coolant temperature (determined by the
signal voltage of the engine coolant temperature
sensor) is displayed. When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.
A/F SEN1 (B1) VThe A/F signal computed from the input signal of
the air fuel ratio (A/F) sensor 1 is displayed.
HO2S2 (B1) VThe signal voltage of the heated oxygen sensor 2 is
displayed.
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 sent from combination meter is dis-
played.
BATTERY VOLT V The power supply voltage of ECM is displayed.
ACCEL SEN 1 VThe accelerator pedal position sensor signal volt-
age is displayed. ACCEL SEN 2 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
ACCEL SEN 2
TP SEN 1-B1
VThe throttle position sensor signal voltage is dis-
played. TP SEN 2-B1 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
TP SEN 2-B1
FUEL T/TMP SE
°C or °F The fuel temperature (determined by the signal volt-
age of the fuel tank temperature sensor) is dis-
played.
EVAP SYS PRES VThe signal voltage of EVAP control system pres-
sure sensor is displayed.
FUEL LEVEL SE VThe signal voltage of the fuel level sensor is dis-
played.
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 dis-
played regardless of the starter signal.
CLSD THL POS ON/OFF Indicates idle position [ON/OFF] computed by ECM
according to the accelerator pedal position sensor
signal.
AIR COND SIG ON/OFF Indicates [ON/OFF] condition of the air conditioner
switch as determined by the air conditioner signal.
PW/ST SIGNAL ON/OFF [ON/OFF] condition of the power steering system
(determined by the signal sent from EPS control
unit) is indicated.
Monitored item Unit
DescriptionRemarks
Revision: August 2015 2016 Versa Note

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