2016 NISSAN NOTE low oil pressure

SYSTEMEC-43
< SYSTEM DESCRIPTION > [HR16DE]
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*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 mechanism hydraulically controls cam phases continuously with the fixed operating angle of the exhaust
valve.
The ECM receives signals such as crankshaft positi on, camshaft position, engine speed, engine oil tempera-
ture and engine coolant temperature. Then, the ECM s ends ON/OFF pulse duty signals to the exhaust valve
timing (EVT) control solenoid valve depending on driving stat us. This makes it possible to control the shut/
open timing of the exhaust valve to increase engi ne torque and output in a range of high engine speed.
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE : System Dia-
gram
INFOID:0000000012431324
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE : System De-
scription
INFOID:0000000012431325
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
• The engine protection control at low engine oil pressure warns the driver of a decrease in engine oil pres-
sure by the oil pressure warning lamp a before the engine becomes damaged.
• When detecting a decrease in engine oil pressure at an engine speed less than 1,000 rpm, ECM transmits an oil pressure warning lamp signal to the combination meter. The combination meter turns ON the oil pres-
sure warning lamp, according to the signal.
JPBIA4886GB
JSBIA0704GB
Sensor Input signal to ECM ECM function Actuator
Engine oil pressure sensor Engine pressure Engine protection control
• Oil pressure warning lamp signalCombination meter
• Oil pressure warning lamp
Crankshaft position sensor (POS) Engine speed
Revision: August 2015 2016 Versa Note

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ECM
EC-79
< ECU DIAGNOSIS INFORMATION > [HR16DE]
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O37
(W) 40
(L) Knock sensor
Input[Engine is running]
• Idle speed
2.5 V
38
(LG/B) 44
(P) Engine coolant temperature
sensor
Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
coolant temperature.
39
(L) 68
(R) Battery temperature sensor Input [Engine is running]
• Battery temperature: 25
°C ( °F)
• Idle speed 3.5 V
40
(L) —Sensor ground
(Knock sensor shield circuit) ——
—
42
(L) 51
(P) Fuel tank temperature sen-
sor
Input [Engine is running] 0 - 4.8 V
Output voltage varies with fuel
tank temperature.
43
(SB) 68
(R) EVAP control system pres-
sure sensor
Input [Ignition switch: ON]
0.5 - 4.6 V
44
(P) —Sensor ground
(Engine coolant tempera-
ture sensor) ——
—
45
(G/B) 52
(LG) Mass air flow sensor
Input[Ignition switch ON]
• Engine stopped
0.4 V
[Engine is running]
• Warm-up condition
• Idle speed 0.8 - 1.3 V
[Engine is running]
• Warm-up condition
• Engine is revving from idle to about 4,000 rpm 0.8 - 1.3 to 2.4 V
(Check for linear voltage rise in
response to engine being in-
creased to about 4,000 rpm.)
46
(V) 55
(G/L) Intake air temperature sen-
sor
Input [Engine is running] 0 - 4.8 V
Output voltage varies with intake
air temperature.
47
(Y) 60
(L) Engine oil pressure sensor Input [Engine is running]
• Warm-up condition
• Idle speed
1.0 - 2.0 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 1.5 - 3.5 V
48
(W/R) 63
(W) Ex
haus
t v
alve timing control
position sensor Input[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle 4.3 V
[Engine is running]
• Engine speed: 2,000 rpm 4.3 V
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(G) 108
(B) A/F sensor 1
Input [Ignition switch: ON] 2.2 V
Terminal No.
Description
ConditionVa l u e
(Approx.)
+ – Signal nameInput/
Output
JSBIA0716GB
JSBIA0717GB
Revision: August 2015 2016 Versa Note

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EC-80
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
50
(L/R) 59
(L/Y) Heated oxygen sensor 2 Input [Engine is running]
• Revving engine from idle to 3,000
rpm quickly 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 0 - 1.0 V
51
(P) —Sensor ground
(Fuel tank temperature sen-
sor) ——
—
52
(LG) —
Sensor ground
(Mass air flow sensor) ——
—
53
(L) 108
(B) A/F sensor 1
Input[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm 1.8 V
Output voltage varies with air fuel
ratio.
54
(BR) —Sensor ground
(Engine oil temperature
sensor)
——
—
55
(G/L) —Sensor ground
(Intake air temperature sen-
sor) ——
—
57
(P) 54
(BR) Engine oil temperature sen-
sor
Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
oil temperature.
58
(BR) 68
(R) Battery current sensor Input [Engine is running]
• Battery: Fully charged*
• Idle speed
2.6 - 3.5 V
59
(L/Y) —Sensor ground
(Heated oxygen sensor 2)
——
—
60
(L) —
Sensor ground
(Engine oil pressure sensor) ——
—
61
(L/O) 62
(G) Crankshaft position sensor Input [Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle 4.0 V
[Engine is running]
• Engine speed: 2,000 rpm 4.0 V
62
(G) —Sensor ground
(Crankshaft position sensor)
——
—
63
(W) —Se
nsor gro
u
nd
(Camshaft position sensor) ——
—
Terminal No.
Description
ConditionVa l u e
(Approx.)
+ – Signal nameInput/
Output
JMBIA2185GB
JMBIA2186GB
Revision: August 2015 2016 Versa Note

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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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EC-86
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
Priority
Detected items (DTC)
1 • U0101 U1001 CAN communication line • U0284 Active grille shutter
• U1040 U1044 Engine communication line
• P0101 P0102 P0103 Mass air flow sensor
• P0111 P0112 P0113 P0127 Intake air temperature sensor
• P0116 P0117 P0118 P0125 Engine coolant temperature sensor
• P0122 P0123 P0222 P0223 P1225 P1226 P2135 Throttle position sensor
• P0128 Thermostat function
• P0181 P0182 P0183 Fuel tank temperature sensor
• P0196 P0197 P0198 Engine oil temperature sensor
• P0327 P0328 Knock sensor
• P0335 Crankshaft position sensor (POS)
• P0340 Camshaft position sensor (PHASE)
• P0500 Vehicle speed sensor
• P0520 Engine oil pressure sensor
• P0603 P0604 P0605 P0606 P0607 P060A P060B ECM
• P0643 Sensor power supply
• P0850 Park/neutral position (PNP) switch
• P1550 P1551 P1552 P1553 P1554 Battery current sensor
• P1610 - P1615 NATS
• P2122 P2123 P2127 P2128 P2138 Accelerator pedal position sensor
2 • P0030 P0031 P0032 Air fuel ratio (A/F) sensor 1 heater • P0037 P0038 Heated oxygen sensor 2 heater
• P0075 Intake valve timing control solenoid valve
• P0078 Exhaust valve timing control solenoid valve
• P0130 P0131 P0132 P0133 P014C P014D P015A P015B P2096 P2097 Air fuel ratio (A/F) sensor 1
• P0137 P0138 P0139 Heated oxygen sensor 2
• P0441 EVAP control system purge flow monitoring
• P0443 P0444 P0445 EVAP canister purge volume control solenoid valve
• P0447 P0448 EVAP canister vent control valve
• P0451 P0452 P0453 EVAP control system pressure sensor
• P0460 P0461 P0462 P0463 Fuel level sensor
• P059F Active grille shutter
• P1078 Exhaust valve timing control position sensor
• P1217 Engine over temperature (OVERHEAT)
• P1805 Brake switch
• P2100 P2103 Throttle control motor relay
• P2101 Electric throttle control function
• P2118 Throttle control motor
3 • P0011 Intake valve timing control • P0014 Exhaust valve timing control
• P0171 P0172 Fuel injection system function
• P0300 - P0304 Misfire
• P0420 Three way catalyst function
• P0456 EVAP control system (VERY SMALL LEAK)
• P0506 P0507 Idle speed control system
• P050A P050B P050E Cold start control
• P0524 Engine oil pressure
• P1148 Closed loop control
• P1212 TCS communication line
• P1564 ASCD steering switch
• P1572 ASCD brake switch
• P1574 ASCD vehicle speed sensor
• P1715 Input speed sensor
• P1720 Vehicle speed sensor
• P2119 Electric throttle control actuator
• P219A P219C P219D P219E P219F Air fuel ratio (A/F) sensor 1
Revision: August 2015 2016 Versa Note

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EC-88
< ECU DIAGNOSIS INFORMATION >[HR16DE]
ECM
P0171 0171 FUEL SYS-LEAN-B1
— 2×BEC-248
P0172 0172 FUEL SYS-RICH-B1 — 2×BEC-252
P0181 0181 FTT SENSOR — 2×A and B EC-256
P0182 0182 FTT SEN/CIRCUIT — 2×BEC-260
P0183 0183 ECT SEN/CIRCUIT — 2×BEC-260
P0196 0196 EOP SENSOR — 2×A and B EC-262
P0197 0197 EOP SEN/CIRC — 2×BEC-265
P0198 0198 EOP SEN/CIRC — 2×BEC-265
P0222 0222 TP SEN 1/CIRC-B1 — 1×BEC-267
P0223 0223 TP SEN 1/CIRC-B1 — 1×BEC-267
P0300 0300 MULTI CYL MISFIRE — 1 or 2× or — B EC-270
P0301 0301 CYL 1 MISFIRE — 1 or 2× or — B EC-270
P0302 0302 CYL 2 MISFIRE — 1 or 2× or — B EC-270
P0303 0303 CYL 3 MISFIRE — 1 or 2× or — B EC-270
P0304 0304 CYL 4 MISFIRE — 1 or 2× or — B EC-270
P0327 0327 KNOCK SEN/CIRC-B1 — 2 — —EC-276
P0328 0328 KNOCK SEN/CIRC-B1 — 2 — —EC-276
P0335 0335 CKP SEN/CIRCUIT — 2×BEC-278
P0340 0340 CMP SEN/CIRC-B1 — 2×BEC-282
P0420 0420 TW CATALYST SYS-B1 ×2 × AEC-285
P0441 0441 EVAP PURG FLOW/MON ×2 × AEC-290
P0443 0443 PURG VOLUME CONT/V — 2×AEC-295
P0444 0444 PURG VOLUME CONT/V — 2×BEC-300
P0445 0445 PURG VOLUME CONT/V — 2×BEC-300
P0447 0447 VENT CONTROL VALVE — 2×BEC-303
P0448 0448 VENT CONTROL VALVE — 2×BEC-307
P0451 0451 EVAP SYS PRES SEN — 2×AEC-311
P0452 0452 EVAP SYS PRES SEN — 2×BEC-315
P0453 0453 EVAP SYS PRES SEN — 2×AEC-318
P0456 0456 EVAP VERY SML LEAK
×*82 × AEC-322
P0460 0460 FUEL LEV SEN SLOSH — 2×AEC-328
P0461 0461 FUEL LEVEL SENSOR — 2×BEC-329
P0462 0462 FUEL LEVEL SEN/CIRC — 2×BEC-331
P0463 0463 FUEL LEVEL SEN/CIRC — 2×BEC-331
P0500 0500
VEH SPEED SEN/CIRC*6—2 ×BEC-332
P0506 0506 ISC SYSTEM — 2×BEC-334
P0507 0507 ISC SYSTEM — 2×BEC-335
P050A 050A COLD START CONTROL — 2×AEC-337
P050B 050B COLD START CONTROL — 2×AEC-337
P050E 050E COLD START CONTROL — 2×AEC-337
P0520 0520 EOP SENSOR/SWITCH — 2 — —EC-339
P0524 0524 ENGINE OIL PRESSURE — 1 — —EC-341
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Reference page
CONSULT
GST*
2ECM*3
Revision: August 2015 2016 Versa Note

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EC-154
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
NOTE:
Check “A/F ALPHA-B1” for approximately 1 minute because
it may fluctuate. It is NG if the indication is
out of the SP value even a little.
Is the measurement value within the SP value?
YES >> GO TO 17.
NO-1 >> Less than the SP value: GO TO 2.
NO-2 >> More than the SP value: GO TO 3.
2.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES >> GO TO 4.
NO >> More than the SP value: GO TO 19.
3.CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES >> GO TO 6.
NO-1 >> More than the SP value: GO TO 6.
NO-2 >> Less than the SP value: GO TO 25.
4.CHECK “A/F ALPHA-B1”
1. Stop the engine.
2. Disconnect PCV hose, and then plug it.
3. Start engine.
4. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITO R” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> GO TO 5.
NO >> GO TO 6.
5.CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
dition.
>>INSPECTION END
6.CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-137, "
Work Procedure".)
Is the inspection result normal?
YES >> GO TO 9.
NO-1 >> Fuel pressure is too high: Replace f uel filter and fuel pump assembly (Refer to FL-6, "
Exploded
View"), and then GO TO 8.
NO-2 >> Fuel pressure is too low: GO TO 7.
7.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging
Is the inspection result normal?
YES >> Replace fuel filter and fuel pump assembly (Refer to FL-6, "Exploded View"), and then GO TO 8.
NO >> Repair or replace and then GO TO 8.
Revision: August 2015 2016 Versa Note

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TROUBLE DIAGNOSIS - SPECIFICATION VALUEEC-155
< DTC/CIRCUIT DIAGNOSIS > [HR16DE]
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8.CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 9.
9.PERFORM POWER BALANCE TEST
1. Perform “POWER BALANCE ” in “ACTIVE TEST” mode.
2. Make sure that the each cylinder produces a momentary engine speed drop.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
1. Ignition coil and its circuit (Refer to EC-454, "
Component Inspection (Ignition Coil with Power Transistor)".)
2. Fuel injector and its circuit (Refer to EC-447, "
Component Inspection".)
3. Intake air leakage
4. Low compression pressure (Refer to EM-13, "
Inspection".)
Is the inspection result normal?
YES >> Replace fuel injector (Refer to EM-40, "Removal and Installation"), and then GO TO 11.
NO >> Repair or replace malfunctioning part and then GO TO 11.
11 .CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 12.
12.CHECK A/F SENSOR 1 FUNCTION
Perform all DTC CONFIRMATION PROC EDURE related with A/F sensor 1.
• For DTC P0130, refer to EC-213, "
DTC Logic".
• For DTC P0131, refer to EC-217, "
DTC Logic".
• For DTC P0132, refer to EC-220, "
DTC Logic".
• For DTC P2096, P2097, refer to EC-398, "
DTC Logic".
Is any DTC detected?
YES >> GO TO 15.
NO >> GO TO 13.
13.CHECK A/F SENSOR 1 CIRCUIT
Perform DIAGNOSTIC PROCEDURE according to corresponding DTC.
>> GO TO 14.
14.CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES >> INSPECTION END
NO >> GO TO 15.
15.DISCONNECT AND RECONNECT ECM HARNESS CONNECTOR
Revision: August 2015 2016 Versa Note

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