2014 NISSAN TEANA fuel pressure

SYSTEMEC-585
< SYSTEM DESCRIPTION > [VQ35DE]
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FUEL FILLER CAP WARNING SY
STEM : System DescriptionINFOID:0000000009462525
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Input
*: This signal is sent to the ECM via the CAN communication line.
Output
*: This signal is sent to the combination meter via the CAN communication line.
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and
malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination
meter.
ECM judges a refueled state, based on a fuel leve l signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled
state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter
via CAN communication.
When receiving the signal, the combination meter tu rns ON the fuel filler cap warning display.
CAUTION:
Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
The fuel filler cap warning lamp tunes OFF, according to any condition listed below:
• Reset operation is performed by operating the me ter control switch on the combination meter.
- When the reset operation is performed, the combination me ter transmits a fuel filler cap warning reset signal
to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display
OFF) to the combination meter via CAN communication. When receiving the signal, the combination meter
turns OFF the fuel filler cap warning display.
• EVAP leak diagnosis result is normal.
• Fuel refilled.
• DTC erased by using CONSULT.
NOTE:
Unit/Sensor Input signal to ECM ECM function
EVAP control system pressure sensor Pressure in purge line
Fuel filler cap warning control
Combination meter Fuel level sensor signal
*
Fuel filler cap warning reset signal*
JSBIA1456GB
Unit Output signal Actuator
ECM Fuel filler cap warning display signal
*Combination meter
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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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DIAGNOSIS SYSTEM (ECM)EC-607
< SYSTEM DESCRIPTION > [VQ35DE]
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BRAKE SW1 On/Off
Indicates [On/Off] condition from
brake pedal position switch signal or
ASCD clutch switch.
BRAKE SW2 On/Off Indicates [On/Off] condition of stop
lamp switch signal.
VHCL SPD CUT Non/
Cut • Indicates the vehicle cruise condi-
tion.
NON: Vehicle speed is maintained
at the ASCD set speed.
CUT: Vehicle speed decreased to
excessively low compared with
the ASCD set speed, and ASCD
operation is cut off.
LO SPEED CUT Non/
Cut • Indicates the vehicle cruise condi-
tion.
NON: Vehicle speed is maintained
at the ASCD set speed.
CUT: Vehicle speed decreased to
excessively low, and ASCD oper-
ation is cut off.
AT OD MONITOR On/Off • Indicates [On/Off] condition of
CVT O/D according to the input
signal from the TCM.
AT OD CANCEL On/Off • Indicates [On/Off] condition of
CVT O/D cancel request signal.
CRUISE LAMP On/Off Indicates [On/Off] condition of
CRUISE lamp dete rmined by the
ECM according to the input signals.
SET LAMP On/Off • Indicates [On/Off] condition of
SET lamp determined by the ECM
according to the input signals.
ALT DUTY % Indicates the duty ratio of the power
generation command value. The ra-
tio is calculated by ECM based on
the battery current sensor signal.
BAT CUR SEN mV The signal voltage of battery current
sensor is displayed.
A/F ADJ-B1
— Indicates the correction of a factor
stored in ECM. The factor is calcu-
lated from the difference between
the target air-fuel ratio stored in ECM
and the air-fuel ratio calculated from
A/F sensor 1 signal.
A/F ADJ-B2
P/N POSI SW On/Off ××Indicates [On/Off] condition from the
park/neutral position (PNP) signal.
INT/A TEMP SE °C or °F ×× The intake air temperature (deter-
mined by the signal voltage of the in-
take air temperature sensor) is
indicated.
AC PRESS SEN V The signal voltage from the refriger-
ant pressure sensor is displayed.
VTC DTY EX B2
*——
Monitored item Unit
Monitor Item Selec-
tion
Description Remarks
ECU IN-
PUT SIG- NALS MAIN-
SIG-
NALS
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-610
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
WORK ITEM CONDITION 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 starting “EVAP SYSTEM CLOSE”
• When trying to execute “EVAP SYSTEM CLOSE” under
the condition except above, CONSULT will discontinue it
and display appropriate instruction.
NOTE:
When starting engine, CONSULT may display “BAT-
TERY VOLTAGE IS LOW. CHARGE BATTERY”, even in
using charged battery. When detecting EVAP vapor leak-
age in the EVAP system
FUEL PRESSURE RELEASE Fuel pu mp will stop by touching “START” during idling.
crank a few times after engine stalls. When releasing fuel pressure from
fuel line
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 tim- ing
TARGET IDLE RPM ADJ* Idle condition When setting target idle speed
VIN REGISTRATION In this mode, VIN is registered in ECM When registering VIN in ECM
CLSD THL POS LEARN Ignition on and engine stopped. When learning the throttle valve
closed position
SAVING DATA FOR REPLC CPU In this mode, save data that is in ECM. When ECM replaced.
WRITING DATA FOR REPLC CPU In this mode, write data stored by “SAVING DATA FOR RE-
PLC CPU” in work support mode to ECM. When ECM replaced.
TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION • Engine: Return to the original
non-standard condition
• Change the amount of fuel injec- tion using CONSULT. If malfunctioning symptom disap-
pears, see CHECK ITEM. • Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
ENG COOLANT
TEMP • Engine: Return to the original
non-standard condition
• Change the engine coolant tem- perature using CONSULT. If malfunctioning symptom disap-
pears, see CHECK ITEM. • Harness and connectors
• Engine coolant temperature sen-
sor
• Fuel injector
PURG VOL
CONT/V • Engine: After warming up, run en-
gine at 1,500 rpm.
• Change the EVAP canister purge volume control solenoid valve
opening percent using CON-
SULT. Engine speed changes according to
the opening percent. • Harness and connectors
• Solenoid valve
FUEL/T TEMP
SEN • Change the fuel tank temperature using CONSULT.
ALTERNATOR
DUTY •Engine: Idle
• Change duty ratio using CON-
SULT. Battery voltage changes.
• Harness and connectors
• IPDM E/R
•Alternator
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ECM
EC-623
< ECU DIAGNOSIS INFORMATION > [VQ35DE]
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(BR) 128
(GR) Intake valve timing control so-
lenoid valve (bank 2) Output[Engine is running]
• Warm-up condition
• Idle speed BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 7 - 12 V
57
(L) 128
(GR) Heated oxygen sensor 2
(bank 1) Input[Engine is running]
Revving engine from idle to
3,000 rpm quickly after the fol-
lowing 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
58
(L) 128
(GR) Heated oxygen sensor 2
(bank 2) Input[Engine is running]
Revving engine from idle to
3,000 rpm quickly after the fol-
lowing 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
59
(L) —Sensor ground
(Heated oxygen sensor 2) —— —
63
(W) 64
(P) Refrigerant pressure sensor Input [Engine is running]
• Warm-up condition
• Both A/C switch and blower
fan motor switch: ON (Com-
pressor operates) 1.0 - 4.0 V
64
(P) —Sensor ground
(Refrigerant pressure sensor) —— —
66
(G) 68
(R) Battery current sensor Input [Engine is running]
• Battery: Fully charged*
2
• Idle speed 2.6 - 3.5 V
67
(W) 68
(R) Battery temperature sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with battery temperature.
68
(R) —Sensor ground
(Battery curre nt sensor) —— —
69
(W) 128
(GR) A/F sensor 1 (bank 1) Input [Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm 2.2 V
Output voltage varies with air fuel ratio.
70
(BR) 76
(B) Engine coolant temperature
sensor Input [Engine is running] 0 - 4.8 V
Output voltage varies with engine
coolant temperature.
73
(B) 128
(GR) A/F sensor 1 (bank 1) Input [Ignition switch: ON] 1.8 V
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
JMBIA0038GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-628
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
DTC RELATED ITEM
Engine operating condi-
tion in fail-safe mode Detected items Remarks
Reference
page
Engine speed will not
rise more than 2,500 rpm
due to the fuel cut Malfunction indicator
lamp circuit When there is an open circuit on MIL circuit, the ECM cannot warn the
driver by illuminating MIL when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MIL circuit is open
by means of operating the fail-safe function.
The fail-safe function also operates when above diagnoses except MIL
circuit are detected and demands the driver to repair the malfunction. EC-973
DTC No. Detected items Engine operating condition in fail-safe mode
P0011
P0021 Intake valve timing control The signal is not energized to the intake 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 tempera-
ture sensor circuit Engine coolant temperature will be determined by ECM based on the following condition.
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 en-
gine 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 cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor 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.
Therefore, the acceleration will be poor.
P0196
P0197
P0198 Engine oil temperature
sensor Intake valve timing control does not function.
P0500 Vehicle speed sensor The cooling fan operates (Highest) while engine is running.
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.
P0605 ECM (When ECM calculation function is malfunctioning:) ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
ECM deactivates ASCD operation.
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.
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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

EC-630
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
DTC Index
INFOID:0000000009462545
× :Applicable —: Not applicable
2 P0031, P0032, P0051, P0052 Air fuel ratio (A/F) sensor 1 heater
P0037, P0038, P0057, P0058 Heated oxygen sensor 2 heater
P0075, P0081 Intake valve timing control solenoid valve
P0130, P0131, P0132, P014 C, P014D, P014E, P014F,
P0150, P0151, P0152, P209 6, P2097, P2098, P2099 Air fuel ratio (A/F) sensor 1
P0137, P0138, P0139, P0157, P0158, P0159 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
P0603 ECM power supply
P1217 Engine over temperature (OVERHEAT)
P1800, P1801 VIAS cont rol solenoid valve
P1805 Brake switch
P2100, P2103 Throttle control motor relay
P2101 Electric throttle control function
P2118 Throttle control motor
3 P0011, P0021 Intake valve timing control P0171, P0172, P0174, P0175 Fuel injection system function
P0300 - P0306 Misfire
P0420, P0430 Three way catalyst function
P0456 EVAP control syst em (VERY SMALL LEAK)
P0506, P0507 Idle speed control system
P050A, P050E Cold start control
P0524 Engine oil pressure
P1148, P1168 Closed loop control
P1212 TCS communication line
P1564 ASCD steering switch
P1572 Brake pedal position switch
P1574 ASCD vehicle speed sensor
P2119 Electric throttle control actuator
Priority Detected items (DTC) Detected items (DTC)
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Refer-
ence page
CONSULT
GST
*2ECM*3
U0101 0101*5LOST COMM (ECM) — 1 ×BEC-713
U1001
1001*5CAN COMM CIRCUIT — 2 — — EC-714
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ——
Blinking*6——
P0011 0011 INT/V TIM CONT-B1 ×2 ×BEC-715
P0021 0021 INT/V TIM CONT-B2 ×2 ×BEC-715
P0031 0031 A/F SEN1 HTR (B1) — 2 ×BEC-719
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM