Sec pressure NISSAN TEANA 2014 Repair Manual

EC-514
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
IGNITION SIGNAL
9.CHECK IGNITION COIL WITH POWER TRANSISTOR
Check ignition coil with power transistor. Refer to EC-514, "Component Inspection (Ignition Coil with Power
Transistor)".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-40, "Removal and Installa-
tion".
Component Inspection (Ignition Coil with Power Transistor)INFOID:0000000009462447
1.CHECK IGNITION COIL WITH POWER TRANSISTOR-1
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as per the following.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-40, "Removal and Installa-
tion".
2.CHECK IGNITION COIL WITH POWER TRANSISTOR-2
CAUTION:
Perform the following procedure in a place with no combustible objects and good ventilation.
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-
dure.
4. Start engine.
5. After engine stalls, crank it 2 or 3 times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoi d the electrical discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
12. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded
metal portion.
CAUTION:
• During the operation, always stay 0.5 m (19.7 in) or more
away from the spark plug and the ignition coil. Be careful
not to get an electrical s hock while checking, because the
electrical discharge voltage becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
Ignition coil
Resistance Ω [at 25 °C (77 °F)]
+-
Terminal No. (Polarity)
1 2 Except 0 or
∞
3 Except 0
23
Spark should be generated.
JMBIA0066GB
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COMPONENT PARTSEC-549
< SYSTEM DESCRIPTION > [VQ35DE]
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ENGINE
11. Mass air flow sensor (with intake air temperature sensor)
EC-560, "Mass Air Flow Sensor (With Intake Air Temperature Sen-sor)"
12. Electric throttle control actuator
EC-555, "Electric Throttle Control Actuator"
13. Power valve actuator 2 EC-561, "Power Valve Actuator 1 and 2"
14. EVAP canister purge volume control solenoid valveEC-557, "EVAP Canister Purge Volume Control Solenoid Valve"
15. VIAS control solenoid valve 2EC-562, "VIAS Control Solenoid Valve 1 and 2"
16. VIAS control solenoid valve 1EC-562, "VIAS Control Solenoid Valve 1 and 2"
No. Component Function
A. Engine rear upper-left B. Engine top center C. Engine front lower-right
:Vehicle front
No. Component Function
1. Camshaft position sensor (PHASE)
(bank 1) EC-554, "Camshaft Position Sensor (PHASE)"
2.Ignition coil (with power transistor)
(bank 1) EC-560, "Ignition Coil
(With Power Transistor)"
3. PCV valve EC-563, "Positive Crankcase Ventilation (PCV)"
4. Intake valve timing control solenoid valve (bank 1)EC-560, "Intake Valve Timing Control Solenoid Valve"
5. Engine oil pressure sensorEC-557, "Engine Oil Pressure Sensor"
6. Intake valve timing control solenoid valve (bank 2)EC-560, "Intake Valve Timing Control Solenoid Valve"
7. Crankshaft position sensor (POS)EC-554, "Crankshaft Position Sensor (POS)"
JPBIA5982ZZ
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COMPONENT PARTSEC-557
< SYSTEM DESCRIPTION > [VQ35DE]
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Engine Oil Pressure SensorINFOID:0000000009462492
The engine oil pressure (EOP) sens
or is detects engine oil pressure
and transmits a voltage signal to the ECM.
Engine Oil Temperature SensorINFOID:0000000009462493
The engine oil temperature sensor is used to detect the engine oil
temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil tempera-
ture input. The sensor uses a ther mistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

*: These data are reference values and are measured between ECM terminals.
EVAP CanisterINFOID:0000000009462494
The fuel vapor in the sealed fuel tank is led into t he EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not oper ating or when refueling to the fuel tank.
For details, refer to EC-580, "EVAPORATIVE EMISSION SYSTEM : System Description"
.
EVAP Canister Purge Volume Control Solenoid ValveINFOID:0000000009462495
The EVAP canister purge volume control solenoid valve is used to
control the flow rate of fuel v apor from the EVAP canister. The EVAP
canister purge volume control solenoid valve is moved by ON/OFF
pulses from the ECM. The longer the ON pulse, the greater the
amount of fuel vapor that will flow through the valve.
JSBIA0292ZZ
SEF594K
Engine oil temperature
[° C ( °F)] Vo l ta g e* (V)
Resistance (k
Ω)
–10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.37 - 2.63
50 (122) 2.2 0.68 - 1.00
90 (194) 0.9 0.236 - 0.260
110 (230) 0.6 0.143 - 0.153
SEF012P
PBIB3489E
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EC-558
< SYSTEM DESCRIPTION >[VQ35DE]
COMPONENT PARTS
EVAP Canister Vent Control Valve
INFOID:0000000009462496
The EVAP canister vent control valve is located on the EVAP canis-
ter and is used to seal the canister vent.
This solenoid valve responds to signals from the ECM. When the
ECM sends an ON signal, the coil in the solenoid valve is energized.
A plunger will then move to seal the canister vent. The ability to seal
the vent is necessary for the on board diagnosis of other evaporative
emission control system components.
This solenoid valve is used only for diagnosis, and usually remains
opened.
When the vent is closed, under normal purge conditions, the evapo-
rative emission control system is depressurized and allows “EVAP
Control System” diagnosis.
EVAP Control System Pressure SensorINFOID:0000000009462497
The EVAP control system pressure s ensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases.
Fuel InjectorINFOID:0000000009462498
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
Fuel Level Sensor Unit and Fuel Pump (With Fuel Tank Temperature Sensor)
INFOID:0000000009462499
FUEL PUMP
The ECM activates the fuel pump for 1 second after the ignition
switch is turned ON to improve engine start ability. If the ECM
receives a engine speed signal from the camshaft position sensor
(PHASE), it knows that the engine is rotating, and causes the pump
to operate. If the engine speed signal is not received when the igni-
tion switch is ON, the engine stalls. The ECM stops pump operation
and prevents battery discharging, thereby improving safety. The
ECM does not directly drive the fuel pump. It sends the control signal
to the fuel pump control module, which in turn controls the fuel
pump.
JSBIA1337GB
PBIB3370E
PBIA9664J
JSBIA1282ZZ
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EC-560
< SYSTEM DESCRIPTION >[VQ35DE]
COMPONENT PARTS
Ignition Coil (With Power Transistor)
INFOID:0000000009462501
The ignition signal from the ECM is sent to and amplified by the
power transistor. The power transistor turns ON and OFF the ignition
coil primary circuit. This ON/OFF operation induces the proper high
voltage in the coil secondary circuit.
Intake Valve Timing Control Solenoid ValveINFOID:0000000009462502
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.
Knock SensorINFOID:0000000009462503
The knock sensor is attached to t he cylinder block. It senses engine
knocking using a piezoelectric element. A knocking vibration from
the cylinder block is sensed as vibrational pressure. This pressure is
converted into a voltage signal and sent to the ECM.
Malfunction Indicator lamp (MIL)INFOID:0000000009462504
Malfunction Indicator lamp (MIL) is located on the combination
meter.
MIL will illuminate when the ignition switch is turned ON without the
engine running. This is a bulb check.
When the engine is started, MIL should turn OFF. If the MIL remains
illuminated, the on board diagnosti c system has detected an engine
system malfunction.
For details, refer to EC-590, "Diagnosis Description"
.
Mass Air Flow Sensor (With In take Air Temperature Sensor)INFOID:0000000009462505
MASS AIR FLOW SENSOR
JPBIA4613ZZ
PBIB1842E
JSBIA0284ZZ
JSBIA1315ZZ
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COMPONENT PARTSEC-561
< SYSTEM DESCRIPTION > [VQ35DE]
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The mass air flow sensor (1) is plac
ed in the stream of intake air. It
measures the intake flow rate by measuring a part of the entire
intake flow. The mass air flow sens or controls the temperature of the
hot wire to a certain amount. The heat generated by the hot wire is
reduced as the intake air flows around it. The more air, the greater
the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.
INTAKE AIR TEMPERATURE SENSOR
The intake air temperature sensor is built-into mass air flow sensor. The sensor detects intake air temperature
and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the temperature rise.

*: These data are reference values and are measured between ECM terminals.
Oil Pressure Warning LampINFOID:0000000009462506
Oil pressure warning lamp is located on the combination meter.
It indicates the low pressure of the engine oil and the malfunction of
the engine oil pressure system.
Combination meter turns the oil pressure warning lamp ON/OFF
according to the oil pressure warning lamp signal received from
ECM via CAN communication.
For details, refer to EC-583, "ENGINE PROTECTION CONTROL AT
LOW ENGINE OIL PRESSURE : System Description".
Power Valve Actuator 1 and 2INFOID:0000000009462507
The power valves are used to control the suction pa ssage of the variable induction air control system. They
are set in the fully closed or fully opened position by t he power valve actuators operated by the vacuum stored
in the vacuum tank. The vacuum to power valve actuat ors is controlled by the VIAS control solenoid valves.
PBIA9559J
Intake air temperature
[° C ( °F)] Voltag e* (V)
Resistance (k
Ω)
25 (77) 3.3 1.800 - 2.200
80 (176) 1.2 0.283 - 0.359
SEF012P
PBIA8559J
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EC-564
< SYSTEM DESCRIPTION >[VQ35DE]
STRUCTURE AND OPERATION
On Board Refueling V apor Recovery (ORVR)
INFOID:0000000009462512
From the beginning of refueling, the air and vapor insi de the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.
WARNING:
When conducting inspections below, be sure to observe the following:
• Put a “CAUTION: FLAMMABLE” sign in workshop.
• Never smoke while servicing fuel system. Keep open flames and sparks away from work area.
• Always to furnish the workshop with a CO
2 fire extinguisher.
CAUTION:
• Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-pr oof container and put lid on securely.
- Release fuel pressure from fuel line. Refer to EC-687, "Work Procedure"
.
- Disconnect battery ground cable.
• Always replace O-ring when the fu el gauge retainer is removed.
• Never kink or twist hose and tube when they are installed.
• Never tighten hose and clamps excessively to avoid damaging hoses.
• After installation, run engine and check for fuel leakage at connections.
• Never attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.
Continued refueling may cause fuel overflow, r esulting in fuel spray and possibly a fire.
PBIB1068E
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EC-604
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
EVAP SYS PRES VThe signal voltage of EVAP control
system pressure sensor is dis-
played.
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 bat-
tery voltage. After starting the engine, [Off] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS On/Off ××Indicates idle position [On/Off] com-
puted by ECM according to the ac-
celerator 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 voltage of the power steering
pressure sensor) 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 ig-
nition switch signal.
HEATER FAN SW On/Off ×Indicates [On/Off] condition from the
heater fan switch signal.
BRAKE SW On/Off Indicates [On/Off] condition from the
stop lamp switch signal.
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 cer-
tain computed value is indicated.
INJ PULSE-B2
IGN TIMING BTDC ×Indicates the ignition timing comput-
ed by ECM according to the input
signals. When the engine is stopped, a cer-
tain value is indicated.
CAL/LD VALUE % “Calculated load value” indicates the
value of the current air flow divided
by peak air flow.
MASS AIRFLOW g/s Indicates the mass air flow comput-
ed 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 input sig-
nals.
• The opening becomes larger as the value increases.
Monitored item Unit
Monitor Item Selec-
tion
Description Remarks
ECU IN-
PUT SIG- NALS MAIN-
SIG-
NALS
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ECM
EC-619
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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(SB) 128
(GR) A/F sensor 1 heater (bank 2) Output [Engine is running]
• Warm-up condition
• Idle speed (More than 140 seconds after
starting engine) 2.9 - 8.8 V
4
(LG) 107
(P) Engine oil pressure sensor Input [Engine is running]
• Warm-up condition
• Idle speed 1.3 V
[Engine is running]
• Warm-up condition
• Engine speed is 2,000 rpm 2.7 V
5
(P) 128
(GR) Throttle control motor (Open) Output [Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully de-
pressed 0 - 14 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D position
• Accelerator pedal: Fully re- leased 0 - 14 V
6
(BR) 128
(GR) A/F sensor 1 heater
(bank 1) Output[Engine is running]
• Warm-up condition
• Idle speed
(More than 140 seconds after
starting engine) 2.9 - 8.8 V
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0030GB
JPBIA3359ZZ
JPBIA3360ZZ
JMBIA0031GB
JMBIA0032GB
JMBIA0902GB
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ECM
EC-633
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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OP0463 0463 FUEL LEVL SEN/CIRC — 2
×BEC-866
P0500 0500
VEH SPEED SEN/CIRC*8—2×BEC-867
P0506 0506 ISC SYSTEM — 2 ×BEC-869
P0507 0507 ISC SYSTEM — 2 ×BEC-871
P050A 050A COLD START CONTROL — 2 ×AEC-873
P050E 050E COLD START CONTROL — 2 ×AEC-873
P0520 0520 EOP SENSOR/SWITCH — 2 — — EC-875
P0524 0524 ENGINE OIL PRESSURE — 1 — —EC-878
P0603 0603 ECM BACK UP/CIRCUIT — 2×BEC-881
P0605 0605 ECM — 1 or 2 × or — B EC-883
P0607 0607 ECM — 1 ×BEC-884
P0643 0643 SENSOR POWER/CIRC — 1 ×BEC-885
P0850 0850 P-N POS SW/CIRCUIT — 2 ×BEC-887
P1148 1148 CLOSED LOOP-B1 — 1 ×AEC-890
P1168 1168 CLOSED LOOP-B2 — 1 ×AEC-890
P1212 1212 TCS/CIRC — 2 — — EC-891
P1217 1217 ENG OVER TEMP — 1×BEC-892
P1225 1225 CTP LEARNING-B1 — 2 — — EC-895
P1226 1226 CTP LEARNING-B1 — 2 — —EC-896
P1550 1550 BAT CURRENT SENSOR — 2 — —EC-897
P1551 1551 BAT CURRENT SENSOR — 2 — —EC-899
P1552 1552 BAT CURRENT SENSOR — 2 — —EC-899
P1553 1553 BAT CURRENT SENSOR — 2 — —EC-901
P1554 1554 BAT CURRENT SENSOR — 2 — —EC-903
P1556 1556 BAT TMP SEN/CIRC — 2 — —EC-906
P1557 1557 BAT TMP SEN/CIRC — 2 — —EC-906
P1564 1564 ASCD SW — 1 — —EC-908
P1572 1572 ASCD BRAKE SW — 1 — — EC-911
P1574 1574 ASCD VHL SPD SEN — 1 — —EC-918
P1610 1610 LOCK MODE — 2 — —SEC-68
P1611 1611 ID DISCORD, IMM-ECM — 2 — —SEC-69
P1612 1612 CHAIN OF ECM-IMMU — 2 — — SEC-70
P1614 1614 CHAIN OF IMMU-KEY — 2 — —SEC-71
P1800 1800 VIAS S/V-1 — 2 — — EC-920
P1801 1801 VIAS S/V-2 — 2 — —EC-922
P1805 1805 BRAKE SW/CIRCUIT — 2 — —EC-924
P2096 2096 A/F SENSOR1 (B1) — 2×AEC-927
P2097 2097 A/F SENSOR1 (B1) — 2 ×AEC-927
P2098 2098 A/F SENSOR1 (B2) — 2 ×AEC-927
P2099 2099 A/F SENSOR1 (B2) — 2 ×AEC-927
P2100 2100 ETC MOT PWR-B1 — 1 ×BEC-931
P2101 2101 ETC FNCTN/CIRC-B1 — 1 ×BEC-933
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Refer-
ence page
CONSULT
GST
*2ECM*3
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