Nissan Juke F15. Manual — part 465

DIAGNOSIS SYSTEM (ECM)

EC-673

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

BOOST S/V DUTY

%

The turbocharger boost control valve control condi-
tion (determined by ECM according to the input sig-
nals) is indicated.

ATOM PRESS SEN

V

The atmospheric pressure sensor signal voltage is
displayed.

ECM TEMP 1

°C or °F

The ECM temperature is indicated.

ECM TEMP 2

A/F-S ATMSPHRC
CRCT B1

—

Displays a determined value of atmospheric correc-
tion factor necessary for correcting an A/F sensor
signal input to ECM. The signal used for the correc-
tion is an A/F sensor signal transmitted while driving
under atmospheric pressure.

A/F-S ATMSPHRC
CRCT UP B1

count

Displays the number of updates of the A/F sensor
atmospheric correction factor.

SL TRG VHCL SPD

km/h or mph

The preset speed limiter vehicle speed is displays.

• A certain constant value is displayed

while mode other than speed limiter
control being activated.

• When the speed limiter is released by

other method than the main switch,
the vehicle speed indicated during the
standby mode is the one that is previ-
ously set before releasing the speed
limiter.

SL SET LAMP

ON/OFF

Indicates [ON/OFF] condition of speed limiter SET
indicator determined by the ECM according to the
input signals.

SL LIMIT LAMP

ON/OFF

Indicates [ON/OFF] condition of speed limiter LIMIT
indicator determined by the ECM according to the
input signals.

SL MAIN SW

ON/OFF

Indicates [ON/OFF] condition from speed limiter
MAIN switch signals.

KICKDOWN POS

ON/OFF

Indicates [ON/OFF] condition of kickdown deter-
mined by the ECM according to the input signals.

EGR TEMP SEN

V

The signal voltage of EGR temperature sensor is
displayed.

EGR VALVE POSI-
TION

deg

ECM-calculated EGR valve position is displayed.

EGR VALVE POSI-
TION SEN

V

The signal voltage of EGR valve position sensor is
displayed.

EGR DIFFEREN-
TIAL PRESS

kPa

Displays ECM-calculated pressure difference be-
tween before and behind the EGR volume control
valve.

W/G ACTUATOR
POSITION B1

m

Indicates real stroke position of turbocharger
wastegate actuator. The value is calculated by ECM
based on the difference voltage between position
sensor output and valve close position.

W/G ACTUATOR
POSI SEN B1

V

Indicates position sensor output voltage of turbo-
charger wastegate actuator.

W/GATE V CLSD
LEARN B1

INCMP/CM-

PLT

Displays “full close position learning” experience of
wastegate actuator.
• INCMP: Learning is incomplete. There is no

memory of the full close position voltage in the
ECM.

• CMPLT: Learning is complete. Full close position

voltage is memory in the ECM.

After replacing ECM, “INCMP” is dis-
played.

Monitored item

Unit

Description

Remarks

EC-674

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

RADIATOR COOL-
ANT TEMP

°C or °F

Description: The radiator coolant temperature (de-
termined by the signal voltage of the radiator cool-
ant temperature sensor) is displayed.

ENGINE COOLANT
B/V POSI

deg

Description: The Multi-way Control Valve position
detected by the position sensor is displayed.

AC EVA TEMP

°C or °F

Indicates A/C evaporator temperature sent from
“unified meter and A/C amp”.

AC EVA TARGET

°C or °F

Indicates target A/C evaporator temperature sent
from “unified meter and A/C amp”.

STRT OPRTN
CNTR

count

Starter motor operation counter is displayed.

Indicated multiplication value of the
starter motor operation of key switch op-
eration and the restart.

CML B/DCHG CRNT

—

Cumulative battery discharge current is displayed.

ECM judges whether stop/start system
is possible according to battery state.

A/F LRN CNTR B1

—

NOTE:
The item is indicated, but not used.

MASS AIR FLOW
SENSOR (HZ)

Hz

The value is air flow meter output frequency.
This output decide fuel injection quantity.

EXHAUST GAS
TEMP SEN 1 B1

V

The signal voltage of exhaust gas temperature sen-
sor is displayed.

SWRL CONT S/V

—

Indicates open/close condition of intake manifold
control valve.

BATTERY STS

OK/NG

Indicated [OK/NG] condition of battery output.

AT STOP START
SW

ON/OFF

Indicates [ON/OFF] condition stop/start OFF switch
signal.

CPP SW

ON/OFF

Indicates [ON/OFF] condition from clutch pedal po-
sition switch signal.

CLUTCH INTLCK
SW

ON/OFF

Indicates [ON/OFF] condition from clutch interlock
switch signal.

THRTL STK CNT B1

—

NOTE:
The item is indicated, but not used.

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.

A/F-S ATMSPHRC
CRCT B1

—

Displays a determined value of atmospheric correc-
tion factor necessary for correcting an A/F sensor
signal input to ECM. The signal used for the correc-
tion is an A/F sensor signal transmitted while driving
under atmospheric pressure.

A/F-S ATMSPHRC
CRCT UP B1

count

Displays the number of updates of the A/F sensor
atmospheric correction factor.

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.

Monitored item

Unit

Description

Remarks

DIAGNOSIS SYSTEM (ECM)

EC-675

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

*: The item is indicated, but not used.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

WORK SUPPORT MODE

Work Item

FUEL LEVEL SE

V

The signal voltage of the fuel level sensor is dis-
played.

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.

G SENSOR

V

The signal voltage of G sensor is displayed

TUMBLE POS SEN

V

The intake manifold runner control valve position
sensor signal voltage is displayed.

EVAP SYS PRES

V

The signal voltage of EVAP control system pres-
sure sensor is displayed.

SYSTEM 1 DIAG-
NOSIS A B1

INCMP/CM-

PLT

• Indicates DTC P219A self-daiagnosis condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.

SYSTEM 1 DIAG-
NOSIS B B1

ABSENT/

PRSENT

• Indicates DTC P219A self-daiagnosis condition.
- ABSENT: Self-diagnosis standby.
- PRSENT: Under self-diagnosis.

Monitored item

Unit

Description

Remarks

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.

FUEL PRESSURE RELEASE

Crank a few times after engine stalls.

When releasing fuel pressure from
fuel line.

TARGET IGN TIM ADJ*

Idle condition

When adjusting target ignition tim-
ing.

TARGET IDLE RPM ADJ*

Idle condition

When setting target idle speed.

SELF-LEARNING CONT

The coefficient of self-learning control mixture ratio returns to
the original coefficient.

When clearing mixture ratio self-
learning value.

G SENSOR CALIBRATION

• Park the vehicle on a flat road.
• Adjust pressure in all tires to the specified value.

Calibrates G sensor.

WASTEGATE ACTUATOR POSI
LEARN VALUE CLEAR

Ignition switch is ON and Engine running

When learning full close position
of wastegate actuator after ECM
or turbocharger assembly is re-
placed.

ENGINE COOLANT BYPASS
VALVE

Condition: The valve is in the full opening position

When filing with coolant.

A/F INITIAL LEARNING

Air fuel ratio learning frequency is low while idling, learning
the air fuel ratio of the idling domain in ECM.

When learning the air fuel ratio.

VALVE TIMING OFFSET DATA
WRITING

Ignition switch: ON (Engine stopped)

When adjusting valve timing offset
angle after ECM or engine assem-
bly is replaced.

VALVE TIMING OFFSET DATA
CLEAR

Ignition switch: ON (Engine stopped)

When clear the valve timing offset
angle data after replacing the
camshaft or timing chain.

EC-676

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

*: This function is not necessary in the usual service procedure.

ACTIVE TEST MODE

Test Item

CLSD THL POS LEARN

Ignition on and engine stopped.

When learning the throttle valve
closed position

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 “Battery
voltage is low. Charge battery”, even in using charged bat-
tery.

When detecting EVAP vapor leak
point of EVAP system

VIN REGISTRATION

In this mode, VIN is registered in ECM.

When registering VIN in ECM

SAVING DATA FOR REPLC CPU

In this mode, save data that is in ECM.

When ECM is replaced.

WRITING DATA FOR REPLC CPU

In this mode, write data stored by “SAVE DATA FOR CPU
REPLC” in work support mode to ECM.

When ECM is replaced.

Work item

Condition

Usage

Test item

Condition

Judgement

Check item (Remedy)

ENG COOLANT
TEMP

• Engine: Return to the original

trouble condition

• Change the engine coolant tem-

perature using CONSULT.

If trouble symptom disappears, see
Check item.

• Harness and connectors
• Engine coolant temperature sen-

sor

• Fuel injector

FUEL INJECTION

• Engine: Return to the original

trouble condition

• Change the amount of fuel injec-

tion using CONSULT.

If trouble symptom disappears, see
Check item.

• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1

PURG VOL CONT/V

• Engine: After warming up, run

engine at 1,500 rpm.

• Change the EVAP canister

purge volume control solenoid
valve opening percent using
CONSULT.

Engine speed changes according
to the opening percent.

• Harness and connectors
• Solenoid valve

FUEL PUMP RELAY

• Ignition switch: ON
• Engine stopped
• Turn the fuel pump relay “ON”

and “OFF” using CONSULT and
listen to operating sound.

Fuel pump relay makes the operat-
ing sound.

• Harness and connectors
• Fuel pump relay

IGNITION TIMING

• Engine: Return to the original

trouble condition

• Timing light: Set
• Retard the ignition timing using

CONSULT.

If trouble symptom disappears, see
Check item.

Perform Idle Air Volume Learning.

FAN DUTY CON-
TROL

*

• Ignition switch: ON
• Change duty ratio using CON-

SULT.

Cooling fan speed changes.

• Harness and connectors
• Cooling fan motor
• Cooling fan relay
• Cooling fan control module
• IPDM E/R