display NISSAN 350Z 2007 Z33 Engine Control Owner's Guide
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2007, Model line: 350Z, Model: NISSAN 350Z 2007 Z33Pages: 720
Page 119 of 720
TROUBLE DIAGNOSIS
EC-119
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*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to EC-48, "EMISSION-RELATED DIAGNOSTIC INFORMA-
TION ITEMS" .)
Freeze Frame Data and 1st Trip Freeze Frame Data
EVAP SYSTEM CLOSE CLOSE THE EVAP CANISTER VENT CONTROL VALVE IN
ORDER TO MAKE EVAP SYSTEM CLOSE UNDER THE
FOLLOWING CONDITIONS.
IGN SW ON
ENGINE NOT RUNNING
AMBIENT TEMPERATURE IS ABOVE 0°C (32°F).
NO VACUUM AND NO HIGH PRESSURE IN EVAP SYS-
TEM
FUEL TANK TEMP. IS MORE THAN 0°C (32°F).
WITHIN 10 MINUTES AFTER STARTING EVAP SYS-
TEM CLOSE
WHEN TRYING TO EXECUTE EVAP SYSTEM CLOSE
UNDER THE CONDITION EXCEPT ABOVE, CONSULT-
III WILL DISCONTINUE IT AND DISPLAY APPROPRI-
ATE INSTRUCTION.
NOTE:
WHEN STARTING ENGINE, CONSULT-III MAY DIS-
PLAY “BATTERY VOLTAGE IS LOW. CHARGE BAT-
TERY”, EVEN IN USING CHARGED BATTERY.When detecting EVAP vapor leak
point of EVAP system
VIN REGISTRATION
IN THIS MODE, VIN IS REGISTERED IN ECM. When registering VIN in ECM
EXH V/T CONTROL LEARN
IN THIS MODE, OPERATION TO LEARN EXHAUST
VALVE TIMING CONTROL MAGNET RETARDER
CHARACTERISTIC.When learning the exhaust valve
timing control
TARGET IDLE RPM ADJ*
IDLE CONDITION When setting target idle speed
TARGET IGN TIM ADJ*
IDLE CONDITION When adjusting target ignition tim-
ing WORK ITEM CONDITION USAGE
Freeze frame data
item*Description
DIAG TROUBLE
CODE
[PXXXX]
The engine control component part/control system has a trouble code, it is displayed as PXXXX. (Refer to
EC-8, "
INDEX FOR DTC" .)
FUEL SYS-B1
“Fuel injection system status” at the moment a malfunction is detected is displayed.
One mode in the following is displayed.
Mode2: Open loop due to detected system malfunction
Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control
Mode5: Open loop - has not yet satisfied condition to go to closed loop FUEL SYS-B2
CAL/LD VALUE [%]
The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP
[°C] or [°F]
The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%]
“Long-term fuel trim” at the moment a malfunction is detected is displayed.
The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule
than short-term fuel trim. L-FUEL TRM-B2 [%]
S-FUEL TRM-B1 [%]
“Short-term fuel trim” at the moment a malfunction is detected is displayed.
The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule. S-FUEL TRM-B2 [%]
Page 120 of 720
![NISSAN 350Z 2007 Z33 Engine Control Owners Guide EC-120
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
*: This item is the same as that of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Applicable ENGINE SPEED
[rpm]
The engin](/img/5/762/w960_762-119.png "NISSAN 350Z 2007 Z33 Engine Control Owners Guide EC-120
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
*: This item is the same as that of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Applicable ENGINE SPEED
[rpm]
The engin")
EC-120
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
*: This item is the same as that of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Applicable ENGINE SPEED
[rpm]
The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED
[km/h] or [mph]
The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH-P/S [%]
The throttle valve operating angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]
The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE
[°C] or [°F]
The intake air temperature at the moment a malfunction is detected is displayed. Freeze frame data
item*Description
Monitored item [Unit] Description Remarks
ENG SPEED [rpm]
Indicates the engine speed computed from the signals
of the crankshaft position sensor (POS) and camshaft
position sensor (PHASE).Accuracy becomes poor if engine speed drops
below the idle rpm.
If the signal is interrupted while the engine is
running, an abnormal value may be indicated.
MAS A/F SE-B1 [V]
The 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
indicated in “SPEC”. MAS A/F SE-B2 [V]
B/FUEL SCHDL [msec]
“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 correc-
tion factor per cycle is indicated.
When the engine is stopped, a certain value is
indicated.
This data also includes the data for the air-fuel
ratio learning control.
When engine is running specification range is
indicated in “SPEC”. A/F ALPHA-B2 [%]
COOLAN TEMP/S [°C]
or [°F]
The engine coolant temperature (determined by the
signal voltage of the engine coolant temperature sen-
sor) is displayed.When the engine coolant temperature sensor
is open or short-circuited, ECM enters fail-safe
mode. The engine coolant temperature deter-
mined by the ECM is displayed.
A/F SEN1 (B1) [V]
The A/F signal computed from the input signal of the
A/F sensor 1 is displayed.
A/F SEN1 (B2) [V]
HO2S2 (B1) [V]
The signal voltage of the heated oxygen sensor 2 is
displayed.
HO2S2 (B2) [V]
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.
HO2S2 MNTR(B2)
[RICH/LEAN]
VHCL SPEED SE [km/
h] or [mph]
The vehicle speed computed from the vehicle speed
signal sent from combination meter is displayed.
BATTERY VOLT [V]
The power supply voltage of ECM is displayed.
ACCEL SEN 1 [V]
The accelerator pedal position sensor signal voltage is
displayed.ACCEL SEN 2 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal. ACCEL SEN 2 [V]
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![NISSAN 350Z 2007 Z33 Engine Control Owners Guide TROUBLE DIAGNOSIS
EC-121
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TP SEN 1-B1 [V]The throttle position sensor signal voltage is dis-
played.THRTL SEN 2-B1 signal is converted by EC](/img/5/762/w960_762-120.png "NISSAN 350Z 2007 Z33 Engine Control Owners Guide TROUBLE DIAGNOSIS
EC-121
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TP SEN 1-B1 [V]The throttle position sensor signal voltage is dis-
played.THRTL SEN 2-B1 signal is converted by EC")
TROUBLE DIAGNOSIS
EC-121
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TP SEN 1-B1 [V]The throttle position sensor signal voltage is dis-
played.THRTL SEN 2-B1 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal. TP SEN 2-B1 [V]
FUEL T/TMP SE [°C]
or [°F]
The fuel temperature (determined by the signal volt-
age of the fuel tank temperature sensor) is displayed.
INT/A TEMP SE [°C] or
[°F]
The intake air temperature (determined by the signal
voltage of the intake air temperature sensor) is indi-
cated.
EVAP SYS PRES [V]
The signal voltage of EVAP control system pressure
sensor is displayed.
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
battery voltage.After starting the engine, [OFF] is displayed
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 sig-
nal.
AIR COND SIG [ON/
OFF]
Indicates [ON/OFF] condition of the air conditioner
switch as determined by the air conditioner signal.
P/N POSI SW
[ON/OFF]
Indicates [ON/OFF] condition from the park/neutral
position (PNP) switch signal.
PW/ST SIGNAL [ON/
OFF]
[ON/OFF] condition of the power steering system
(determined by the signal voltage of the power steer-
ing 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 light-
ing 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 ignition switch sig-
nal.
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 compen-
sated by ECM according to the input signals.When the engine is stopped, a certain com-
puted value is indicated.
INJ PULSE-B2 [msec]
IGN TIMING [BTDC]
Indicates the ignition timing computed by ECM
according to the input signals.When the engine is stopped, a certain value is
indicated.
CAL/LD VALUE [%]
“Calculated load value” indicates the value of the cur-
rent air flow divided by peak air flow.
MASS AIRFLOW [g·m/
s]
Indicates the mass air flow computed by ECM accord-
ing 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 signals.
The opening becomes larger as the value increases.
INT/V TIM(B1) [°CA]
Indicates [°CA] of intake camshaft advanced angle.
INT/V TIM(B2) [°CA]
EXH/V TIM B1 [°CA]
Indicates [°CA] of exhaust camshaft retarded angle.
EXH/V TIM B2 [°CA] Monitored item [Unit] Description Remarks
Page 122 of 720
![NISSAN 350Z 2007 Z33 Engine Control Owners Guide EC-122
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
INT/V SOL(B1) [%]The control value of the intake valve timing control
solenoid valve (determined by ECM according to the
input signals) is](/img/5/762/w960_762-121.png "NISSAN 350Z 2007 Z33 Engine Control Owners Guide EC-122
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
INT/V SOL(B1) [%]The control value of the intake valve timing control
solenoid valve (determined by ECM according to the
input signals) is")
EC-122
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
INT/V SOL(B1) [%]The control value of the intake valve timing control
solenoid valve (determined by ECM according to the
input signals) is indicated.
The advance angle becomes larger as the value
increases. INT/V SOL(B2) [%]
EX VTC DTY B1 [%]
The control value of the exhaust valve timing control
magnet retarder (determined by ECM according to the
input signals) is indicated.
The retard angle becomes larger as the value
increases. EX VTC DTY B2 [%]
TP SEN 1-B2 [V]
The throttle position sensor signal voltage is dis-
played.THRTL SEN 2-B2 signal is converted by ECM
internally. Thus, it differs from ECM terminal
voltage signal. TP SEN 2-B2 [V]
AIR COND RLY [ON/
OFF]
The air conditioner relay control condition (determined
by ECM according to the input signals) is indicated.
FUEL PUMP RLY [ON/
OFF]
Indicates the fuel pump relay control condition deter-
mined by ECM according to the input signals.
VENT CONT/V [ON/
OFF]
The control condition of the EVAP canister vent control
valve (determined by ECM according to the input sig-
nals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY [ON/
OFF]
Indicates the throttle control motor relay control condi-
tion determined by the ECM according to the input sig-
nals.
COOLING FAN
[HI/LOW/OFF]
The control condition of the cooling fan (determined by
ECM according to the input signals) is indicated.
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S2 HTR (B1) [ON/
OFF]
Indicates [ON/OFF] condition of heated oxygen sensor
2 heater determined by ECM according to the input
signals. HO2S2 HTR (B2) [ON/
OFF]
I/P PULLY SPD
[rpm]
Indicates the engine speed computed from the turbine
revolution sensor signal.
VEHICLE SPEED
[km/h] or [mph]
Indicates the vehicle speed computed from the revolu-
tion sensor signal.
IDL A/V LEARN [YET/
CMPLT]
Display the condition of Idle Air Volume Learning
YET: Idle Air Volume Learning has not been performed
yet.
CMPLT: Idle Air Volume Learning has already been
performed successfully.
TRVL AFTER MIL [km]
or [mile]
Distance traveled while MIL is activated.
ENG OIL TEMP [°C] or
[°F]
The engine oil temperature (determined by the signal
voltage of the engine oil temperature sensor) is dis-
played.
A/F S1 HTR(B1) [%]
Indicates A/F sensor 1 heater control value computed
by ECM according to the input signals.
The current flow to the heater becomes larger as the
value increases. A/F S1 HTR(B2) [%]
AC PRESS SEN [V]
The signal voltage from the refrigerant pressure sen-
sor is displayed. Monitored item [Unit] Description Remarks
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TROUBLE DIAGNOSIS
EC-123
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.VHCL SPEED SE [km/
h] or [mph]
The vehicle speed computed from the vehicle speed
signal sent from TCM is displayed.
SET VHCL SPD
[km/h] or [mph]
The preset vehicle speed is displayed.
MAIN SW
[ON/OFF]
Indicates [ON/OFF] condition from MAIN switch sig-
nal.
CANCEL SW
[ON/OFF]
Indicates [ON/OFF] condition from CANCEL switch
signal.
RESUME/ACC SW
[ON/OFF]
Indicates [ON/OFF] condition from RESUME/ACCEL-
ERATE switch signal.
SET SW
[ON/OFF]
Indicates [ON/OFF] condition from SET/COAST
switch signal.
BRAKE SW1
[ON/OFF]
Indicates [ON/OFF] condition from ASCD brake switch
signal and ASCD clutch switch signal (M/T)
BRAKE SW2
[ON/OFF]
Indicates [ON/OFF] condition of stop lamp switch sig-
nal.
VHCL SPD CUT
[NON/CUT]
Indicates the vehicle cruise condition.
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 oper-
ation is cut off.
LO SPEED CUT
[NON/CUT]
Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the ASCD set
speed.
CUT: Vehicle speed decreased to excessively low, and
ASCD operation is cut off.
AT OD MONITOR
[ON/OFF]
Indicates [ON/OFF] condition of A/T O/D according to
the input signal from the TCM.For M/T models always “OFF” is displayed.
AT OD CANCEL
[ON/OFF]
Indicates [ON/OFF] condition of A/T O/D cancel
request signal.For M/T models always “OFF” is displayed.
CRUISE LAMP
[ON/OFF]
Indicates [ON/OFF] condition of CRUISE lamp deter-
mined 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.
EXH V/T LEARN [YET/
CMPLT]
Display the condition of Exhaust Valve Timing Control
Learning
YET: Exhaust Valve Timing Control Learning has not
been performed yet.
CMPLT: Exhaust Valve Timing Control Learning has
already been performed successfully.
A/F ADJ-B1
Indicates the correction of factor stored in ECM. The
factor is calculated 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
Voltage [V]
Voltage, frequency, duty cycle or pulse width mea-
sured by the probe.
Only “#” is displayed if item is unable to be
measured.
Figures with “#”s are temporary ones. They
are the same figures as an actual piece of data
which was just previously measured. Frequency [msec], [Hz]
or [%]
DUTY-HI
DUTY-LOW
PLS WIDTH-HI
PLS WIDTH-LOWMonitored item [Unit] Description Remarks
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EC-130
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
IDL A/V LEARNEngine: RunningIdle air volume learning has not been
performed yet.YET
Idle air volume learning has already
been performed successfully.CMPLT
ENG OIL TEMP
Engine: After warming up More than 70°C (158°F)
TRVL AFTER MIL
Ignition switch: ONVehicle has traveled after MIL has
turned ON.0 - 65,535 km
(0 - 40,723 mile)
A/F S1 HTR(B1)
A/F S1 HTR(B2)
Engine: After warming up, idle the engine
(More than 140 seconds after starting engine)4 - 100%
AC PRESS SEN
Engine: Idle
Both A/C switch and blower switch are ON.
(Compressor operates.)1.0 - 4.0V
VHCL SPEED SE
Turn drive wheels and compare CONSULT-III value with the speedometer
indication.Almost the same speed as the
speedometer indication
SET VHCL SPD
Engine: Running ASCD: OperatingThe preset vehicle speed is
displayed.
MAIN SW
Ignition switch: ONMAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW
Ignition switch: ONCANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW
Ignition switch: ONRESUME/ACCELERATE switch:
PressedON
RESUME/ACCELERATE switch:
ReleasedOFF
SET SW
Ignition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1
(ASCD brake switch)
Ignition switch: ON
Brake pedal: Fully released (A/T)
Brake pedal and clutch pedal: Fully
released (M/T)ON
Brake pedal: Slightly depressed (A/T)
Brake pedal and/or clutch pedal:
Slightly depressed (M/T)OFF
BRAKE SW2
(Stop lamp switch)
Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
VHCL SPD CUT
Ignition switch: ON NON
LO SPEED CUT
Ignition switch: ON NON
AT OD MONITOR
Ignition switch: ON OFF
AT OD CANSEL
Ignition switch: ON OFF
CRUISE LAMP
Ignition switch: ONMAIN switch: Pressed at the 1st time →
at the 2nd timeON → OFF
SET LAMP
MAIN switch: ON
When vehicle speed is between
40 km/h (25 MPH) and 144 km/h
(89MPH)ASCD: Operating ON
ASCD: Not operating OFF
EXH V/T LEARN
Engine: RunningExhaust Valve Timing Control Learning
has not been performed yet.YET
Exhaust Valve Timing Control Learning
has not been performed yet.CMPLT
A/F ADJ B1
Engine: Running –0.330 - 0.330
A/F ADJ B2
Engine: Running –0.330 - 0.330 MONITOR ITEM CONDITION SPECIFICATION
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EC-132
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionNBS0003R
The specification (SP) value indicates the tolerance of the value that is displayed in “SPEC” in “DATA MONI-
TOR” mode of CONSULT-III during normal operation of the Engine Control System. When the value in “SPEC”
in “DATA MONITOR” mode is within the SP value, the Engine Control System is confirmed OK. When the
value in “SPEC” in “DATA MONITOR” mode is NOT within the SP value, the Engine Control System may have
one or more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)
A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)
MAS A/F SE-B1/B2 (The signal voltage of the mass air flow sensor)
Testing ConditionNBS0003S
Vehicle driven distance: More than 5,000 km (3,107 miles)
Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)
Atmospheric temperature: 20 - 30°C (68 - 86°F)
Engine coolant temperature: 75 - 95°C (167 - 203°F)
Transmission: Warmed-up
–For A/T models: After the engine is warmed up to normal operating temperature, drive vehicle until “ATF
TEMP 1” (A/T fluid temperature sensor signal) indicates more than 60°C (140°F).
–For M/T models: After the engine is warmed up to normal operating temperature, drive vehicle for 5 min-
utes.
Electrical load: Not applied
–Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
Engine speed: Idle
Inspection ProcedureNBS0003T
NOTE:
Perform “SPEC” in “DATA MONITOR” mode in maximum scale display.
1. Perform EC-71, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1”, “A/F ALPHA-B2”, “MAS A/F SE-B1” and “MAS A/F SE-B2” in
“SPEC” of ”DATA MONITOR” mode with CONSULT-III.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-133, "
Diagnostic Procedure" .
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DTC U1010 CAN COMMUNICATION
EC-155
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Diagnostic ProcedureNBS002VO
1. INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4.Perform DTC Confirmation Procedure.
See EC-154, "
DTC Confirmation Procedure" .
5. Is the DTC U1010 displayed again?
With GST
1. Turn ignition switch ON.
2. Select Service $04 with GST.
3.Perform DTC Confirmation Procedure.
See EC-154, "
DTC Confirmation Procedure" .
4. Is the DTC U1010 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
2. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs. Refer to
BL-152, "
ECM Re-communicating Function" .
3. Perform EC-76, "
VIN Registration" .
4. Perform EC-76, "
Exhaust Valve Timing Control Learning"
5. Perform EC-77, "Accelerator Pedal Released Position Learning" .
6. Perform EC-77, "
Throttle Valve Closed Position Learning" .
7. Perform EC-77, "
Idle Air Volume Learning" .
>>INSPECTION END
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DTC P0011, P0021 IVT CONTROL
EC-157
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On Board Diagnosis LogicNBS00047
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation ProcedureNBS00048
CAUTION:
Always drive at a safe speed.
NOTE:
If DTC P0011 or P0021 is displayed with DTC P0075 or P0081, first perform trouble diagnosis for
DTC P0075 or P0081. Refer to EC-183, "
DTC P0075, P0081 IVT CONTROL SOLENOID VALVE" .
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 consecutive seconds.
Hold the accelerator pedal as steady as possible.
4. Let engine idle for 10 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-158, "
Diagnostic Procedure" .
If 1st trip DTC is not detected, go to next step.
7. Maintain the following conditions for at least 20 consecutive seconds.
8. Check 1st trip DTC.
9. If 1st trip DTC is detected, go to EC-158, "
Diagnostic Procedure" .
DTC No.Trouble diagnosis
nameDetecting condition Possible cause
P0011
0011
(Bank 1)
Intake valve timing
control performanceThere is a gap between angle of target and
phase-control angle degree.
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Intake valve timing control solenoid valve
Accumulation of debris to the signal pick-up
portion of the camshaft
Timing chain installation
Foreign matter caught in the oil groove for
intake valve timing control P0021
0021
(Bank 2)
Detected items Engine operating condition in fail-safe mode
Intake valve timing control The signal is not energized to the solenoid valve and the valve control does not function.
ENG SPEED 500 - 2,000 rpm (A constant rotation is maintained.)
COOLANT TEMP/S More than 60°C (140°F)
B/FUEL SCHDL More than 3.5 msec
Shift lever P or N (A/T), neutral (M/T) position
ENG SPEED 1,700 - 3,175 rpm (A constant rotation is maintained.)
COOLANT TEMP/S More than 70°C (158°F)
Shift lever 1st or 2nd position
Driving location uphillDriving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
Page 161 of 720
DTC P0014 P0024 EVT CONTROL
EC-161
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
On Board Diagnosis LogicNBS0004E
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode.
DTC Confirmation ProcedureNBS0004F
CAUTION:
Always drive at a safe speed.
NOTE:
If DTC P0014 or P0024 is displayed with DTC P0078, P0084, P1078 or P1084, first perform trouble
diagnosis for DTC P0078, P0084 or P1078, P1084. Refer to EC-190, "
DTC P0078 P0084 EVT CON-
TROL MAGNET RETARDER" or EC-528, "DTC P1078 P1084 EVT CONTROL POSITION SENSOR" .
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10V and 16V at
idle.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 consecutive seconds.
Hold the accelerator pedal as steady as possible.
4. Let engine idle for 10 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-162, "
Diagnostic Procedure" .
If 1st trip DTC is not detected, go to next step.
7. Maintain the following conditions for at least 20 consecutive seconds.
DTC No.Trouble diagnosis
nameDetecting condition Possible cause
P0014
0014
(Bank 1)
Exhaust valve timing
control performanceThere is a gap between angle of target and
phase-control angle degree.
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Exhaust valve timing control position sensor
Exhaust valve timing control magnet retarder
Accumulation of debris to the signal pick-up
portion of the camshaft
Timing chain installation
Exhaust valve timing control pulley assembly P0024
0024
(Bank 2)
Detected items Engine operating condition in fail-safe mode
Exhaust valve timing controlThe signal is not energized to the Exhaust valve timing control magnet retarder and the mag-
net retarder control does not function.
ENG SPEED 500 - 2,000 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 60°C (140°F)
B/FUEL SCHDL More than 3.5 msec
Shift lever P or N (A/T), neutral (M/T) position
ENG SPEED 1,700 - 2,950 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 70°C (158°F)
Shift lever 1st or 2nd position
Driving location uphillDriving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)