2016 NISSAN NOTE stop start

EC-34
< SYSTEM DESCRIPTION >[HR16DE]
SYSTEM
MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback sys
tem provides the best air-fuel mixture ra tio for drivability and emission control.
The three way catalyst (manifold) can better reduce CO, HC and NOx emissions. This system uses A/F sen-
sor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The ECM adjusts the
injection pulse width according to the sensor voltage signal. For more information about A/F sensor 1, refer to
EC-19, "
Air Fuel Ratio Sensor 1". This maintains the mixture ratio within the range of stoichiometric (ideal air-
fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the th ree way catalyst (manifold). Even if the switching
characteristics of A/F sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal from heated
oxygen sensor 2.
• Open Loop Control The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.
- Deceleration and acceleration
- High-load, high-speed operation
- Malfunction of A/F sensor 1 or its circuit
- Insufficient activation of heated sensor 1 at low engine coolant temperature
- High engine coolant temperature
- During warm-up
- After shifting from N to D (CVT models)
- When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors t he mixture ratio signal transmitted from A/F sensor 1.
This feedback signal is then sent to the ECM. The ECM c ontrols the basic mixture ratio as close to the theoret-
ical mixture ratio as possible. However, the basic mi xture ratio is not necessarily controlled as originally
designed. Both manufacturing differences (i.e., mass ai r flow sensor hot wire) and characteristic changes dur-
ing operation (i.e., fuel injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value co mpared against the basic injection duration. Fuel trim
includes “short-term fuel trim” and “long-term fuel trim”.
“Short-term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from A/F sensor 1 indicates whether the mixture ratio is RICH or LEAN compared to the the-
oretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an increase in
fuel volume if it is lean.
“Long-term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the “short-term fuel trim” from the central value. Such deviation will occur due to individual engine differ-
ences, wear over time and changes in the usage environment.
PBIB2793E
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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
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DIAGNOSIS SYSTEM (ECM)EC-67
< SYSTEM DESCRIPTION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
*: The item is indicated, but not used.
NOTE:
Any monitored item that does not match the vehicle
being diagnosed is deleted from the display automatically.
WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
A/F IMBALNC DIAG-
CPS STATABSNT/
PRSNT Indicates DTC P219C – P219F self-diagnosis con-
dition.
• ABSNT: The vehicle condition is not within the di-
agnosis range.
• PRSNT: The vehicle condition is within the diag-
nosis range.
A/F IMBLNC DIAG-
CPS CMPLT INCMP/CM-
PLT Indicates DTC P219C – P219F self-diagnosis con-
dition.
• INCMP: Self-diagnosis is incomplete.
• CMPLT: Self-diagnosis is complete.
Monitored item Unit
DescriptionRemarks
WORK ITEMCONDITION USAGE
IDLE AIR VOL LEARN The idle air volume that keeps the engine within the specified range is memorized in ECM. When learning the idle air volume
EVAP SYSTEM CLOSE Close the EVAP canister vent control valve in order to make
EVAP system close under the following conditions.
• Ignition switch ON
• Engine not running
• Ambient temperature is above 0 °C (32 °F)
• No vacuum and no high pressure in EVAP system
• Fuel tank temperature is more than 0 °C (32 °F)
• Within 10 minutes after st arting “EVAP SYSTEM CLOSE”
• When trying to execute “E VAP SYSTEM CLOSE” under the
condition except above, CONSULT will discontinue it and
display appropriate instruction.
NOTE:
When starting engine, CONSULT may display “Battery volt-
age is low. Charge battery”, even in using charged battery. When detecting EVAP vapor leak
point of EVAP system
FUEL PRESSURE RELEASE Fuel pump will stop by touching “START” during idling. Crank a few times after engine stalls. When releasing fuel pressure from
fuel line
TARGET IDLE RPM ADJ* Idle condition When setting target idle speed
VIN REGISTRATION In this mode, VIN is regist ered in ECM.When registering VIN in ECM
SELF-LEARNING CONT The coefficient of self-learning control mixture ratio returns to the original coefficient. When clearing mixture ratio self-
learning value
TARGET IGN TIM ADJ* Idle condition When adjusting target ignition timing
CLSD THL POS LEARN Ignition on and engine stopped. When learning throttle valve closed
position
SAVING DATA FOR REPLC
CPU In this mode, save data that is in ECM.
When ECM is replaced.
WRITING DATA FOR REPLC
CPU In this mode, write data stor
ed by "SAVE DATA FOR CPU RE-
PLC" in work support mode to EC When ECM is replaced.
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2016 Versa Note

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EC-72
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
EVAP SYS PRES • Ignition switch: ON
Approx. 1.8 - 4.8 V
FUEL LEVEL SE • Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL • Ignition switch: ON → START → ON OFF → ON → OFF
CLSD THL POS • Ignition switch: ON
(Engine stopped) Accelerator pedal: Fully released
ON
Accelerator pedal: Slightly depressed OFF
AIR COND SIG • Engine: After warming up, idle
the engine Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.) ON
PW/ST SIGNAL • Engine: After warming up, idle
the engine Steering wheel: Not being turned
OFF
Steering wheel: Being turned ON
LOAD SIGNAL • Ignition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2nd position
ON
Rear window defogger switch and lighting
switch: OFF OFF
IGNITION SW • Ignition switch: ON → OFF → ON ON → OFF → ON
HEATER FAN SW • Engine: After warming up, idle
the engine Heater fan switch: ON
ON
Heater fan switch: OFF OFF
BRAKE SW • Ignition switch: ON Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed ON
INJ PULSE-B1 • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
4
°BTDC (CVT)
10 °BTDC (M/T)
2,000 rpm 25° - 45 °BTDC
CAL/LD VALUE • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
10% - 35%
2,500 rpm 10% - 35%
MASS AIRFLOW • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
0.8 - 4.0 g/s
2,500 rpm 2.0 - 10.0 g/s
PURG VOL C/V • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idl
e
0%
2 ,
000 rpm
0% - 50%
INT/V TIM(B1) • Engine: After warming up
• Selector lever position: P or N
(CVT) or Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
−5° - 5 °CA
When revving engine up to 2,000rpm
Quickly Approx. 0
° - 40 °CA
Monitor Item
Condition Values/Status
Revision: August 2015 2016 Versa Note

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EC-76
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
*: Accelerator pedal position sensor 2 signal and throttle
position sensor 2 signal are converted by ECM inter-
nally. Thus, they differ from ECM terminals voltage signal.
TERMINAL LAYOUT
PHYSICAL VALUES
NOTE:
• Connect a break-out box and harness adapter between the ECM and ECM harness connector.
- Use extreme care not to touch 2 pins at one time.
- Data is for comparison and may not be exact.
• Specification data are reference values and are measured between each terminals.
• Pulse signal is measured by CONSULT.
A/F IMBLNC DIAG-
CPS CMPLT Self-diagnosis of DTC P219C – P219F is incomplete.
INCMP
Self-diagnosis of DTC P219C – P219F is complete. CMPLT
Monitor Item
Condition Values/Status
PBIA9221J
Terminal No.Description
ConditionVa l u e
(Approx.)
+ – Signal nameInput/
Output
1
(L) 108
(B) Throttle control motor
(Open)
Output[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully de-
pressed 2.6 V
2
(L/W) 108
(B) Throttle control motor power
supply
Input [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
3
(G/W) 108
(B) A/F sensor 1 heater Output [Engine is running]
• Warm-up condition
• Idle speed
(More than 140 seconds after
starting engine) 2.9 - 8.8 V
4
(P) 108
(B) Throttle control motor
(Close)
Output[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully released 1.8 V
JMBIA0213GB
JSBIA0714GB
JMBIA0215GB
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2016 Versa Note

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ECM
EC-77
< ECU DIAGNOSIS INFORMATION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
5
(BR/W) 59
(L/Y) Heated oxygen sensor 2
heater
Output[Engine is running]
• Engine speed: Below 3,600 rpm
after the following conditions are
met
- Engine: after warming up
- Keeping the engine speed be- tween 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute
under no load 10 V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm BATTERY VOLTAGE
(11 - 14 V)
9
(SB) 108
(B) EVAP canister purge vol-
ume control solenoid valve
Output[Engine is running]
• Idle speed
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Engine speed: About 2,000 rpm (More than 100 seconds after
starting engine.) BATTERY VOLTAGE
(11 - 14 V)
10
(B) — ECM ground — — —
11
(B/Y) — ECM ground
—— —
12
(L/W)
108(B) Fuel injector No. 1 (Rear)
Output[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle BATTERY VOLTAGE
(11 - 14 V)
16
(G) Fuel injector No. 3 (Rear)
20
(O/W) Fuel injector No. 2 (Rear)
24
(R) Fuel injector No. 4 (Rear)
25
(R) Fuel injector No. 4 (Front)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpmBATTERY VOLTAGE
(11 - 14 V)
29
(G) Fuel injector No. 3 (Front)
30
(O) Fuel injector No. 2 (Front)
31
(L) Fuel injector No. 1 (Front)
Terminal No.
Description
ConditionVa l u e
(Approx.)
+ – Signal nameInput/
Output
JMBIA0214GB
JMBIA0039GB
JMBIA0216GB
JMBIA0221GB
JMBIA0222GB
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EC-84
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
P0014 Exhaust valve timing control The signal is not energized to the exhaust valve timing control solenoid valve and the valve
control does not function.
P0101
P0102
P0103 Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118 Engine coolant temperature
sensor circuit Engine coolant temperature will be determined by ECM based on the following conditions.
CONSULT displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT display)
Just as ignition switch is turned ON or START 40°C (104 °F)
Approx. 4 minutes or more after engine starting 80°C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
• When the fail safe system for engine coolant temperature sensor is activated, the cool- ing fan operates while engine is running.
• ECM operates active grille shutter to fully-open position.
P0116
P0125 Engine coolant temperature
sensor ECM operates active grille shutter to fully-open position.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor ECM controls the electric throttle control actuator in regulating the throttle opening in order
for the idle position to be within +10 degrees.
ECM regulates the opening speed of the throttle valve to be slower than the normal con-
dition.
So, the acceleration will be poor.
P0196
P0197
P0198 Engine oil temperature sensor • Exhaust valve timing control does not function.
• ECM operates active grille shutter to fully-open position.
P0500 Vehicle speed sensor • The cooling fan operates (Highest) while engine is running.
• ECM operates active grille shutter to fully-open position.
P0524 Engine oil pressure • ECM illuminates oil pressure warning lamp on the combination meter.
• Engine speed will not rise more than 4,000 rpm due to the fuel cut.
• Fail-safe is canceled when ignition switch OFF → ON.
P059F Active grille shutter • When a voltage and temperature related malfunction is detected, the active grille shutter
stops at the position of detection.
• Except for the above case, operates the active grille shutter to fully opened position.
P0603
P0607 ECM
Engine torque may be limited.
P0604
ECM • ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (Approx. 5 decrees) by the return spring.
• The position of the following commponents is fixed.
- Intake valve timing control solenoid valve
- Exhaust valve timing control solenoid valve
• ASCD operation may be deactivated.
P0605
P0606
P060B
ECM NOTE:
Fail-safe may not occur depending on malfunction type.
• ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (Approx. 5 decrees) by the return spring.
• The position of the following commponents is fixed.
- Intake valve timing control solenoid valve
- Exhaust valve timing control solenoid valve
• ASCD operation may be deactivated.
DTC No. Detected items
Engine operating condition in fail safe mode
Revision: August 2015 2016 Versa Note

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ECM
EC-85
< ECU DIAGNOSIS INFORMATION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC Inspection Priority ChartINFOID:0000000012431344
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
P060A
ECM NOTE:
Fail-safe may not occur depending on malfunction type.
• ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (Approx. 5 decrees) by the return spring.
• The position of the following commponents is fixed.
- Intake valve timing control solenoid valve
- Exhaust valve timing control solenoid valve
• Engine torque may be limited.
• ASCD operation may be deactivated.
P0643
ECM • ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (Approx. 5 decrees) by the return spring.
• The position of the following commponents is fixed.
- Intake valve timing control solenoid valve
- Exhaust valve timing control solenoid valve
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1720 Vehicle speed sensor ECM operates active grille shutter to fully-open position.
P1805 Brake switch ECM controls the electric throttle control actuator by regulating the throttle opening to a
small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
P2100
P2103 Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric throttle control function ECM stops the electric thro ttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2119 Electric throttle control actuator (When electric throttle control actuator does not function properly due to the return sp ring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the
engine stalls.
The engine can restart in the Neutral position, and engine speed will not exceed 1,000 rpm
or more.
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position sen-
sor
The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
DTC No. Detected items
Engine operating condition in fail safe mode
Revision: August 2015 2016 Versa Note

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