Nissan Versa Note. Manual — part 270
EC-62
< SYSTEM DESCRIPTION >
[HR16DE]
DIAGNOSIS SYSTEM (ECM)
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”.
B/FUEL SCHDL
ms
“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 cor-
rection factor per cycle is indicated.
• When the engine is stopped, a certain
value is indicated.
• When engine is running, specification
range is indicated in “SPEC”.
• This data also includes the data for
the air-fuel ratio learning control.
COOLAN TEMP/S
°C or °F
The engine coolant temperature (determined by the
signal voltage of the engine coolant temperature
sensor) is displayed.
When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.
A/F SEN1 (B1)
V
The A/F signal computed from the input signal of
the air fuel ratio (A/F) sensor 1 is displayed.
HO2S2 (B1)
V
The signal voltage of the heated oxygen sensor 2 is
displayed.
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.
VHCL SPEED SE
km/h or mph
The vehicle speed computed from the vehicle
speed signal sent from combination meter is dis-
played.
BATTERY VOLT
V
The power supply voltage of ECM is displayed.
ACCEL SEN 1
V
The accelerator pedal position sensor signal volt-
age is displayed.
ACCEL SEN 2 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
ACCEL SEN 2
TP SEN 1-B1
V
The throttle position sensor signal voltage is dis-
played.
TP SEN 2-B1 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
TP SEN 2-B1
FUEL T/TMP SE
°C or °F
The fuel temperature (determined by the signal volt-
age of the fuel tank temperature sensor) is dis-
played.
EVAP SYS PRES
V
The signal voltage of EVAP control system pres-
sure sensor is displayed.
FUEL LEVEL SE
V
The signal voltage of the fuel level sensor is dis-
played.
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 dis-
played 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
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 sent from EPS control
unit) is indicated.
Monitored item
Unit
Description
Remarks
DIAGNOSIS SYSTEM (ECM)
EC-63
< SYSTEM DESCRIPTION >
[HR16DE]
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LOAD SIGNAL
ON/OFF
• Indicates [ON/OFF] condition of the electrical
lode signal.
- ON: Rear window defogger switch is ON and/or
lighting switch is 2nd position.
- OFF: Both rear window defogger switch and light-
ing switch are OFF.
IGNITION SW
ON/OFF
Indicates [ON/OFF] condition from ignition 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 com-
pensated by ECM according to the input signals.
When the engine is stopped, a certain
computed value is indicated.
IGN TIMING
BTDC
Indicates the ignition timing computed by ECM ac-
cording 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 air flow divided by peak air flow.
MASS AIRFLOW
g/s
Indicates the mass air flow computed by ECM ac-
cording 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 advance angle.
EXH/V TIM B1
°CA
Indicates [
°CA] of exhaust camshaft retard angle.
INT/V SOL(B1)
%
• The control value of the intake valve timing con-
trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.
• The advance angle becomes larger as the value
increases.
AIR COND RLY
ON/OFF
The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is in-
dicated.
FUEL PUMP RLY
ON/OFF
Indicates the fuel pump relay control condition de-
termined 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 signals) is displayed.
- ON: Closed
- OFF: Open
THRTL RELAY
ON/OFF
Indicates the throttle control motor relay control
condition determined by the ECM according to the
input signals.
COOLING FAN
HI/LOW/OFF
• Indicates the condition of the cooling fan (deter-
mined by ECM according to the input signals).
- 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.
Monitored item
Unit
Description
Remarks
EC-64
< SYSTEM DESCRIPTION >
[HR16DE]
DIAGNOSIS SYSTEM (ECM)
ALT DUTY SIG
ON/OFF
• The control condition of the power generation
voltage variable control (determined by ECM ac-
cording to the input signals) is indicated.
- ON: Power generation voltage variable control is
active.
- OFF: Power generation voltage variable control
is inactive.
I/P PULLY SPD
rpm
Indicates the engine speed computed from the in-
put speed sensor signal.
VEHICLE SPEED
km/h or mph
The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
IDL A/V LEARN
YET/CMPLT
• Displays the condition of Idle Air Volume Learn-
ing.
- YET: Idle air volume learning has not been per-
formed yet.
- CMPLT: Idle air volume learning has already
been performed successfully.
TRVL AFTER MIL
km or mile
Distance traveled while MI is activated.
ENG OIL TEMP
°C or °F
The engine oil temperature (determined by the sig-
nal voltage of the engine oil temperature sensor) is
indicated.
A/F S1 HTR(B1)
%
• Air fuel ratio (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.
VHCL SPEED SE
km/h or mph
The vehicle speed computed from the vehicle
speed signal sent from combination meter is dis-
played.
SET VHCL SPD
km/h or mph
The preset vehicle speed is displayed.
MAIN SW
ON/OFF
Indicates [ON/OFF] condition from ASCD MAIN
switch signal.
CANCEL SW
ON/OFF
Indicates [ON/OFF] condition from CANCEL switch
signal.
RESUME/ACC SW
ON/OFF
Indicates [ON/OFF] condition from ACCEL/RES
switch signal.
SET SW
ON/OFF
Indicates [ON/OFF] condition from COAST/SET
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 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 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 CVT O/D accord-
ing to the input signal from the TCM.
AT OD CANCEL
ON/OFF
Indicates [ON/OFF] condition of CVT O/D cancel
request signal.
Monitored item
Unit
Description
Remarks
DIAGNOSIS SYSTEM (ECM)
EC-65
< SYSTEM DESCRIPTION >
[HR16DE]
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CRUISE LAMP
ON/OFF
Indicates [ON/OFF] condition of CRUISE lamp de-
termined by the ECM according to the input signals.
SET LAMP*
ON/OFF
Indicates [ON/OFF] condition of SET lamp deter-
mined by the ECM according to the input signals.
ALT DUTY
%
Indicates the duty ratio of the power generation
command value. The ratio is calculated by ECM
based on the battery current sensor signal.
BAT CUR SEN
mV
The signal voltage of battery current sensor is dis-
played.
A/F ADJ-B1
—
Indicates the correction of a 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.
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 (determined by the sig-
nal voltage of the intake air temperature sensor) is
indicated.
AC PRESS SEN
V
The signal voltage from the refrigerant pressure
sensor is displayed.
CLUTCH P/P SW
ON/OFF
Indicates [ON/OFF] condition clutch pedal position
switch signals.
Models other than M/T models always
display OFF.
VTC DTY EX B1
%
• The control value of the exhaust valve timing con-
trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.
• The advance angle becomes larger as the value
increases.
THRTL STK CNT
B1*
—
—
EVAP LEAK DIAG
YET/CMPLT
• Indicates the condition of EVAP leak diagnosis.
YET: EVAP leak diagnosis has not been per-
formed yet.
CMPLT: EVAP leak diagnosis has been per-
formed successfully.
EVAP DIAG READY
ON/OFF
• Indicates the ready condition of EVAP leak diag-
nosis.
ON: Diagnosis has been ready condition.
OFF: Diagnosis has not been ready condition.
A/F SEN1
DIAG1(B1)
INCMP/CM-
PLT
• Indicates DTC P015A or P015B self-diagnosis
condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
A/F SEN1
DIAG2(B1)
INCMP/CM-
PLT
• Indicates DTC P014C or P014D self-diagnosis
condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
A/F SEN1
DIAG3(B1)
ABSNT/
PRSNT
• Indicates DTC P014C, P014D, P015A or P015B
self-diagnosis condition.
- ABSNT: The vehicle condition is not within the di-
agnosis range.
- PRSNT: The vehicle condition is within the diag-
nosis range.
HO2 S2 DIAG2(B1)
INCMP/CM-
PLT
• Indicates DTC P0139 self-diagnosis (slow re-
sponse) condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
EOP SENSOR
mV
The signal voltage of EOP sensor is displayed.
Monitored item
Unit
Description
Remarks
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