2008 NISSAN LATIO display

TROUBLE DIAGNOSIS
EC-113
< SERVICE INFORMATION >
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*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Applicable
INT/A TEMP SE
[°C] or [°F]• The intake air temperature at the moment a malfunction is detected is displayed.
FUEL SYS-B2
• Always a certain value is displayed.
• These items can not efficiently for C11 models. L-FUEL TRM-B2 [%]
S-FUEL TRM-B2 [%]
INT MANI PRES [kPa]
FTFMCH1Freeze frame data
item*Description
Monitored item [Unit]ECM IN-
PUT SIG-
NALSMAIN
SIG-
NALSDescription Remarks
ENG SPEED [rpm]×ו 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 abnor-
mal value may be indicated.
MAS A/F SE-B1 [V]×ו The signal voltage of the mass air flow sensor
is displayed.• When the engine is stopped, a
certain value is indicated.
B/FUEL SCHDL
[msec]ו “Base fuel schedule” indicates the fuel injection
pulse width programmed into ECM, prior to any
learned on board correction.
A/F ALPHA-B1 [%]ו The mean value of the air-fuel ratio feedback
correction 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 con-
trol.
COOLAN TEMP/S
[°C] or [°F]×ו The engine coolant temperature (determined
by the signal voltage of the engine coolant tem-
perature sensor) is displayed.• When the engine coolant temper-
ature sensor is open or short-cir-
cuited, ECM enters fail-safe
mode. The engine coolant tem-
perature determined by the ECM
is displayed.
A/F SEN1 (B1) [V]×ו The A/F signal computed from the input signal
of the A/F sensor 1 is displayed.
HO2S2 (B1) [V]ו The signal voltage of the heated oxygen sensor
2 is displayed.
HO2S2 MNTR (B1)
[RICH/LEAN]ו 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]×ו The vehicle speed computed from the vehicle
speed signal is displayed.
BATTERY VOLT [V]×ו 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]×
THRTL SEN 1 [V]××
• The throttle position sensor signal voltage is
displayed.• THRTL SEN 2 signal is converted
by ECM internally. Thus, it differs
from ECM terminal voltage signal. THRTL SEN 2 [V]×

EC-114
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
FUEL T/TMP SE [°C]
or [°F]ו The fuel temperature (determined by the signal
voltage of the fuel tank temperature sensor) is
displayed.
INT/A TEMP SE
[°C] or [°F]×ו The intake air temperature (determined by the
signal voltage of the intake air temperature
sensor) is indicated.
EVAP SYS PRES [V]ו The signal voltage of EVAP control system
pressure sensor is displayed.
FUEL LEVEL SE [V]ו The signal voltage of the fuel level sensor is
displayed.
START SIGNAL
[ON/OFF]×ו Indicates start signal status [ON/OFF] comput-
ed by the ECM according to the signals of en-
gine speed and battery voltage.• After starting the engine, [OFF] is
displayed regardless of the starter
signal.
CLSD THL POS
[ON/OFF]×ו Indicates idle position [ON/OFF] computed by
the ECM according to the accelerator pedal po-
sition sensor signal.
AIR COND SIG
[ON/OFF]×ו Indicates [ON/OFF] condition of the air condi-
tioner switch as determined by the air condi-
tioner signal.
P/N POSI SW
[ON/OFF]×ו Indicates [ON/OFF] condition from the park/
neutral position (PNP) switch signal.
PW/ST SIGNAL [ON/
OFF]×ו [ON/OFF] condition of the power steering sys-
tem (determined by the signal sent from EPS
control unit) is indicated.
LOAD SIGNAL
[ON/OFF]×ו Indicates [ON/OFF] condition from the electri-
cal 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]ו Indicates [ON/OFF] condition from ignition
switch.
HEATER FAN SW
[ON/OFF]ו Indicates [ON/OFF] condition from the heater
fan switch signal.
BRAKE SW
[ON/OFF]ו Indicates [ON/OFF] condition from the stop
lamp switch signal.
INJ PULSE-B1
[msec]ו Indicates the actual fuel injection pulse width
compensated by ECM according to the input
signals.• When the engine is stopped, a
certain computed value is indicat-
ed.
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 current airflow divided by peak airflow.
MASS AIRFLOW
[g·m/s]• Indicates the mass airflow computed by ECM
according to the signal voltage of the mass air
flow sensor.
PURG VOL C/V [%]• Indicates the EVAP canister purge volume con-
trol solenoid valve control value computed by
the ECM according to the input signals.
• The opening becomes larger as the value in-
creases.
INT/V TIM (B1) [°CA]• Indicates [°CA] of intake camshaft advanced
angle. Monitored item [Unit]ECM IN-
PUT SIG-
NALSMAIN
SIG-
NALSDescription Remarks

TROUBLE DIAGNOSIS
EC-115
< SERVICE INFORMATION >
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P OINT/V SOL (B1) [%]• The control value of the intake valve timing
control solenoid valve (determined by ECM ac-
cording to the input signal) is indicated.
• The advance angle becomes larger as the val-
ue increases
AIR COND RLY
[ON/OFF]ו The air conditioner relay control condition (de-
termined by ECM according to the input sig-
nals) is indicated.
FUEL PUMP RLY
[ON/OFF]ו Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
VENT CONT/V [ON/
OFF]• The control condition of the EVAP canister vent
control valve (determined by ECM according to
the input signals) is indicated.
ON: Closed
OFF: Open
THRTL RELAY
[ON/OFF]ו Indicates the throttle control motor relay control
condition determined by the ECM according to
the input signals.
COOLING FAN
[HI/LOW/OFF]ו Indicates the condition of the cooling fan (de-
termined by ECM according to the input sig-
nals).
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.
I/P PULLY SPD
[rpm]• Indicates the engine speed computed from the
turbine revolution sensor signal.
VEHICLE SPEED
[km/h] or [MPH]ו The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
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.
A/F S1 HTR (B1) [%]• Indicates A/F sensor 1 heater control value
computed by ECM according to the input sig-
nals.
• The current flow to the heater becomes larger
as the value increases.
AC PRESS SEN [V]ו The signal voltage from the refrigerant pres-
sure sensor is displayed.
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 signal.
CANCEL SW
[ON/OFF]• Indicates [ON/OFF] condition from CANCEL
switch signal. Monitored item [Unit]ECM IN-
PUT SIG-
NALSMAIN
SIG-
NALSDescription Remarks

EC-116
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (SPEC) MODE
Monitored Item
RESUME/ACC SW
[ON/OFF]• Indicates [ON/OFF] condition from RESUME/
ACCELERATE 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.
BRAKE SW2
[ON/OFF]• Indicates [ON/OFF] condition of stop lamp
switch signal.
VHCL SPD CUT
[NON/CUT]• Indicates the vehicle cruise condition.
NON: Vehicle speed is maintained at the ASCD
set speed.
CUT: Vehicle speed increased to excessively
high compared with the ASCD set speed, and
ASCD operation 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 compared with the ASCD set speed, and
ASCD operation is cut off.
AT O D M O N I T O R
[ON/OFF]• Indicates [ON/OFF] condition of A/T O/D ac-
cording 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 can-
cel signal sent from the TCM.• For M/T models always “OFF” is
displayed
CRUISE LAMP
[ON/OFF]• Indicates [ON/OFF] condition of CRUISE lamp
determined by the ECM according to the input
signals.
SET LAMP
[ON/OFF]• Indicates [ON/OFF] condition of SET lamp de-
termined by the ECM according to the input
signals.
A/F ADJ-B1 • Indicates the correction factor stored in ECM.
The factor is calculated from the difference be-
tween the target air/fuel ratio stored in ECM
and the air/fuel ratio calculated from air fuel ra-
tio (A/F) sensor 1 signal. A/F ADJ-B2
Voltage [V]
• Voltage, frequency, duty cycle or pulse width
measured by the probe.• Only “#” is displayed if item is un-
able 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]ECM IN-
PUT SIG-
NALSMAIN
SIG-
NALSDescription Remarks

TROUBLE DIAGNOSIS
EC-117
< SERVICE INFORMATION >
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NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
Monitored item [Unit]ECM
input
signalsMain
signalsDescription Remarks
ENG SPEED [rpm]×ו Indicates the engine speed computed
from the signal of the crankshaft position
sensor (POS) and camshaft position
sensor (PHASE).
MAS A/F SE-B1 [V]×ו The signal voltage of the mass air flow
sensor specification is displayed.• When engine is running specification
range is indicated.
B/FUEL SCHDL
[msec]ו “Base fuel schedule” indicates the fuel in-
jection pulse width programmed into
ECM, prior to any learned on board cor-
rection.• When engine is running specification
range is indicated.
A/F ALPHA-B1 [%]ו The mean value of the air-fuel ratio feed-
back correction factor per cycle is indi-
cated.• When engine is running specification
range is indicated.
• This data also includes the data for the
air-fuel ratio learning control.
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION• Engine: Return to the original
trouble condition
• Change the amount of fuel injec-
tion using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
IGNITION TIM-
ING• Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.• Perform Idle Air Volume Learning.
POWER BAL-
ANCE• Engine: After warming up, idle the
engine.
• A/C switch OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• Cut off each fuel injector signal
one at a time using CONSULT-II.Engine runs rough or dies.• Harness and connectors
• Compression
• Fuel injector
• Power transistor
•Spark plug
• Ignition coil
COOLING FAN*• Ignition switch: ON
• Turn the cooling fan “LOW”, “HI”
and “OFF” with CONSULT-II.Cooling fan moves and stops.• Harness and connectors
• Cooling fan relay
• Cooling fan motor
ENG COOLANT
TEMP• Engine: Return to the original
trouble condition
• Change the engine coolant tem-
perature using CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.• Harness and connectors
• Engine coolant temperature sen-
sor
• Fuel injector
FUEL PUMP RE-
LAY• Ignition switch: ON
(Engine stopped)
• Turn the fuel pump relay ON and
OFF using CONSULT-II and lis-
ten to operating sound.Fuel pump relay makes the operat-
ing sound.• Harness and connectors
• Fuel pump relay
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-II.Engine speed changes according to
the opening percent.• Harness and connectors
• EVAP canister purge volume con-
trol solenoid valve

EC-118
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
*: Leaving cooling fan OFF with CONSULT-II while engine is running may cause the engine to overheat.
DTC & SRT CONFIRMATION MODE
SRT STATUS Mode
For details, refer to EC-47, "Emission-related Diagnostic Information".
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
DTC WORK SUPPORT Mode
*: DTC P1442 and P1456 does not apply to C11 models but appears in DTC Work Support Mode screens.
REAL TIME DIAGNOSIS IN DATA MONITOR MODE (RECORDING VEHICLE DATA)
Description
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONITOR”
mode.
1. “AUTO TRIG” (Automatic trigger):
• The malfunction will be identified on the CONSULT-II screen in
real time.
In other words, DTC/1st trip DTC and malfunction item will be
displayed if the malfunction is detected by ECM.
At the moment a malfunction is detected by ECM, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown at right, and the data after the malfunction
detection is recorded. Then when the percentage reached
100%, “REAL-TIME DIAG” screen is displayed. If “STOP” is
touched on the screen during “Recording Data ... xx%”,
“REAL-TIME DIAG” screen is also displayed.
FUEL/T TEMP
SEN• Change the fuel tank temperature using CONSULT-II.
VENT CON-
TROL/V•Ignition switch: ON
(Engine stopped)
• Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.Solenoid valve makes an operating
sound.• Harness and connectors
• EVAP canister vent control valve
V/T ASSIGN AN-
GLE• Engine: Return to the original
trouble condition
• Change intake valve timing using
CONSULT-II.If trouble symptom disappears, see
CHECK ITEM.• Harness and connectors
• Intake valve timing control sole-
noid valve TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
Test mode Test item Corresponding DTC No. Reference page
EVAPORATIVE SYS-
TEMPURG FLOW P0441 P0441EC-313
EVP SML LEAK P0442/P1442*P0442EC-318P0455EC-370
EVP V/S LEAK P0456/P1456* P0456EC-377
PURG VOL CN/V P1444 P0443EC-325
A/F SEN1A/F SEN1 (B1) P1276 P0130EC-206A/F SEN1 (B1) P1278/P1279 P0133EC-225
HO2S2HO2S2 (B1) P0139 P0139EC-250HO2S2 (B1) P1146 P0138EC-240
HO2S2 (B1) P1147 P0137EC-233
PBIB1593E

TROUBLE DIAGNOSIS
EC-119
< SERVICE INFORMATION >
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The recording time after the malfunction detection and the
recording speed can be changed by “TRIGGER POINT” and
“Recording Speed”. Refer to CONSULT-II Operation Manual.
2. “MANU TRIG” (Manual trigger):
• DTC/1st trip DTC and malfunction item will not be displayed
automatically on CONSULT-II screen even though a malfunc-
tion is detected by ECM.
DATA MONITOR can be performed continuously even though
a malfunction is detected.
Operation
1. “AUTO TRIG”
• While trying to detect the DTC/1st trip DTC by performing the DTC Confirmation Procedure, be sure to
select to “DATA MONITOR (AUTO TRIG)” mode. You can confirm the malfunction at the moment it is
detected.
• While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, compo-
nents and harness in the DTC Confirmation Procedure, the moment a malfunction is found the DTC/1st
trip DTC will be displayed. (Refer to “INCIDENT SIMULATION TESTS” in GI-25, "
How to Perform Effi-
cient Diagnosis for an Electrical Incident".)
2. “MANU TRIG”
• If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-II to “MANU
TRIG”. By selecting “MANU TRIG” you can monitor and store the data. The data can be utilized for fur-
ther diagnosis, such as a comparison with the value for the normal operating condition.
Generic Scan Tool (GST) FunctionINFOID:0000000001702596
DESCRIPTION
SEF707X
PBIB0197E

TROUBLE DIAGNOSIS
EC-123
< SERVICE INFORMATION >
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INT/V SOL (B1)• Engine: After warming up
• Air conditioner switch: OFF
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
•No loadIdle 0% - 2%
When revving engine up to 2,000 rpm
quicklyApprox. 0% - 90%
AIR COND RLY• Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)ON
FUEL PUMP RLY• For 1 second after turning ignition switch ON
• Engine running or crankingON
• Except above conditions OFF
VENT CONT/V • Ignition switch: ON OFF
THRTL RELAY • Ignition switch: ON ON
COOLING FAN• Engine: After warming up, idle the
engine
• Air conditioner switch: OFFEngine coolant temperature: 97°C
(207°F) or lessOFF
Engine coolant temperature: Between
98°C (208°F) and 99°C (210°F)LOW
Engine coolant temperature: 100°C
(212°F) or moreHIGH
HO2S2 HTR (B1)• Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and
at idle for 1 minute under no loadON
• Engine speed: Above 3,600 rpm OFF
I/P PULLY SPD • Vehicle speed: More than 20 km/h (12 MPH)Almost the same speed as the
tachometer indication
VEHICLE SPEED• Turn drive wheels and compare CONSULT-II value with the speedometer
indication.Almost the same speed as the
speedometer indication
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)• Engine: After warming up, idle the engine
(More than 140 seconds after starting engine.)4 - 100%
AC PRESS SEN• Engine: Idle
• Air conditioner switch: ON (Compressor operates)1.0 - 4.0V
VHCL SPEED SE• Turn drive wheels and compare speedometer indication with the CONSULT-
II value.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: Re-
leased
OFF
SET SW • Ignition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF MONITOR ITEM CONDITION SPECIFICATION