Nissan Juke (2016 year). Service Repair Manual — part 159

DIAGNOSIS SYSTEM (ECM)

EC-87

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

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ACCEL SEN 1

V

The accelerator pedal position sensor
signal voltage is displayed.

ACCEL SEN 2 signal is con-
verted by ECM internally.
Thus, it differs from ECM ter-
minal voltage signal.

ACCEL SEN 2

TP SEN 1-B1

V

×

×

The throttle position sensor signal volt-
age is displayed.

TP SEN 2-B1 signal is con-
verted by ECM internally.
Thus, it differs from ECM ter-
minal voltage signal.

TP SEN 2-B1

×

×

FUEL T/TMP SE

°

C or

°

F

The fuel temperature (determined by
the signal voltage of the fuel tank tem-
perature sensor) is displayed.

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 sen-
sor 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] com-
puted by ECM according to the accel-
erator 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 steer-
ing system (determined by the signal
sent from EPS control unit) is indicat-
ed.

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.

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.

COMBUSTION

—

These items are displayed but are not
applicable to this model.

CAL/LD VALUE

%

“Calculated load value” indicates the
value of the current airflow divided by
peak airflow.

MASS AIRFLOW

g/s

Indicates the mass airflow computed
by ECM according to the signal voltage
of the mass airflow sensor.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

Revision: November 2015

2016 JUKE

EC-88

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

PURG VOL C/V

%

• Indicates the EVAP canister purge

volume control solenoid valve con-
trol value computed by the ECM ac-
cording to the input signals.

• The opening becomes larger as the

value increases.

INT/V TIM(B1)

°

CA

Indicates [

°

CA] of intake camshaft ad-

vance angle.

EXHV TIM B1

°

CA

Indicates [

°

CA] of exhaust camshaft

advance angle.

INT/V SOL(B1)

%

• The control value of the intake valve

timing control solenoid valve (deter-
mined by ECM according to the in-
put signals) is indicated.

• The advance angle becomes larger

as the value increases.

AIR COND RLY

ON/OFF

The air conditioner relay control condi-
tion (determined by ECM according to
the input signals) is indicated.

FUEL PUMP RLY

ON/OFF

Indicates the fuel pump relay control
condition determined by ECM accord-
ing to the input signals.

VENT CONT/V

ON/OFF

• The control condition of the EVAP

canister vent control valve (deter-
mined by ECM according to the in-
put signals) is displayed.

- ON: Closed
- OFF: Open

THRTL RELAY

ON/OFF

Indicates the throttle control motor re-
lay control condition determined by the
ECM according to the input signals.

HO2S2 HTR (B1)

ON/OFF

Indicates [ON/OFF] condition of heat-
ed oxygen sensor 2 heater determined
by ECM according to the input signals.

ALT DUTY SIG

ON/OFF

• The control condition of the power

generation voltage variable control
(determined by ECM according to
the input signals) is indicated.

- ON: Power generation voltage vari-

able control is active.

- OFF: Power generation

I/P PULLY SPD

rpm

Indicates the engine speed computed
from the input 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

• Display the condition of Idle Air Vol-

ume Learning

- YET: Idle air volume learning has not

been performed yet.

- CMPLT: Idle air volume learning has

already been performed successful-
ly.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

Revision: November 2015

2016 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-89

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

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TRVL AFTER MIL

km/h or mph

Distance traveled while MIL is activat-
ed.

ENG OIL TEMP

°

C or

°

F

The engine oil temperature (deter-
mined by the signal voltage of the en-
gine oil temperature sensor) is
displayed.

A/F S1 HTR(B1)

%

• Air fuel ratio (A/F) sensor 1 heater

control value computed by ECM ac-
cording to the input signals.

• The current flow to the heater be-

comes larger as the value increases.

VHCL SPEED SE

km/h or mph

The vehicle speed computed from the
vehicle speed signal sent from combi-
nation meter is displayed.

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 AC-
CEL/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
brake pedal position switch signal.

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 opera-
tion 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 opera-
tion is cut off.

AT OD MONITOR

ON/OFF

Indicates [ON/OFF] condition of CVT
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 CVT
O/D cancel request signal.

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

NOTE:

The item is indicated, but not used.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

Revision: November 2015

2016 JUKE

EC-90

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

FAN DUTY

%

Indicates a command value for cooling
fan. The value is calculated by ECM
based on input signals.

ALT DUTY

%

Indicates the duty ratio of the power
generation command value. The ratio
is calculated by ECM based on the bat-
tery 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 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 (deter-
mined by the signal voltage of the in-
take air temperature sensor1) is
indicated.

AC PRESS SEN

V

The signal voltage from the refrigerant
pressure sensor is displayed.

FUEL PRES SEN

MPa

Indicates the fuel rail pressure comput-
ed by ECM according to the input sig-
nals.

TURBO BST SEN

V

The turbocharger boost sensor signal
voltage is displayed.

ATOM PRES SEN

V

The atmospheric pressure sensor sig-
nal voltage is displayed.

FUEL INJ TIM

deg

Indicates the fuel injection timing com-
puted by ECM according to the input
signals.

FUEL INJ B1

msec

ECM-calculated injection pulse width
of the fuel injector on the Bank 1 side.

EVAP LEAK DIAG

YET/ CMPLT

• Indicates the condition of EVAP leak

diagnosis.

- YET: EVAP leak diagnosis has not

been performed yet.

- CMPLT: EVAP leak diagnosis has

been performed successfully.

EVAP DIAG READY

ON/OFF

• Indicates the ready condition of

EVAP leak diagnosis.

- ON: Diagnosis has been ready con-

dition.

- OFF: Diagnosis has not been ready

condition.

BAT TEMP SEN

V

The signal voltage from the battery
temperature sensor is displayed.

THRTL STK CNT B1

—

NOTE:

The item is indicated, but not used.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

Revision: November 2015

2016 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-91

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

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HO2 S2 DIAG1(B1)

INCMP/CM-

PLT

• Indicates DTC P0139 self-diagnosis

(delayed response) condition.

- INCMP: Self-diagnosis is incom-

plete.

- CMPLT: Self-diagnosis is complete.

HO2 S2 DIAG2(B1)

INCMP/CM-

PLT

• Indicates DTC P0139 self-diagnosis

(slow response) condition.

- INCMP: Self-diagnosis is incom-

plete.

- CMPLT: Self-diagnosis is complete.

H/P FUEL PUMP
DEG

deg

Displays ECM-calculated fuel dis-
charge position of the high pressure
fuel pump.

FUEL PRES SEN V

mV

The signal voltage of FRP sensor is
displayed.

EOP SENSOR

mV

The signal voltage of EOP sensor is
displayed.

ECM TEMP 1

°

C or

°

F

The ECM temperature is indicated.

ECM TEMP 2

BOOST S/V DUTY

%

The turbocharger boost control sole-
noid valve control condition (detem-
ined by ECM according to the input
signal) is indicated.

G SENSOR

mV

The signal voltage of G sensor is dis-
played.

A/F SEN1 DIAG1
(B1)

INCMP/CM-

PLT

• Indicates DTC P015A or P015B self-

diagnosis condition.
INCMP: Self-diagnosis is incom-
plete.
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 incom-
plete.
CMPLT: Self-diagnosis is complete.

A/F SEN1 DIAG3
(B1)

ABSNT/

PRSNT

• Indicates DTC P014C, P014D,

P015A or P015B self-diagnosis con-
dition.
ABSNT: The vehicle condition is not
within the diagnosis range.
PRSNT: The vehicle condition is
within the diagnosis range.

A/F-S ATMSPHRC
CRCT B1

—

Displays a determined value of atmo-
spheric correction 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 pres-
sure.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

Revision: November 2015

2016 JUKE

EC-92

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

NOTE:

Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

WORK SUPPORT MODE

Work Item

A/F-S ATMSPHRC
CRCT B2

—

Displays a determined value of atmo-
spheric correction 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 pres-
sure.

A/F-S ATMSPHRC
CRCT UP B1

count

Displays the number of updates of the
A/F sensor atmospheric correction fac-
tor.

A/F-S ATMSPHRC
CRCT UP B2

count

Displays the number of updates of the
A/F sensor atmospheric correction fac-
tor.

SYSTEM 1 DIAG-
NOSIS A B1

INCMP/CM-

PLT

• Indicates DTC P219A self-daiagno-

sis condition.

- INCMP: Self-diagnosis is incom-

plete.

- CMPLT: Self-diagnosis is complete.

SYSTEM 1 DIAG-
NOSIS B B1

ABSENT/

PRSENT

• Indicates DTC P219A self-daiagno-

sis condition.

- ABSENT: Self-diagnosis standby.
- PRSENT: Under self-diagnosis.

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

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

When detecting EVAP vapor leak
point of EVAP system

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

VIN REGISTRATION

In this mode, VIN is registered in ECM.

When registering VIN in ECM

Revision: November 2015

2016 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-93

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

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

ACTIVE TEST MODE

Test Item

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.

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 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)

VENT CONTROL/V

• Ignition switch ON (Engine

stopped)

• Turn solenoid valve ON and OFF

with the CONSULT and listen to
operating sound.

Solenoid valve makes an operating
sound.

• Harness and connectors
• EVAP canister vent control sole-

noid valve

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

FUEL/T TEMP SEN

Change the fuel tank temperature using CONSULT.

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

Revision: November 2015

2016 JUKE

EC-94

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS SYSTEM (ECM)

*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.

DTC WORK SUPPORT MODE

Test Item

SRT & P-DTC MODE

SRT STATUS Mode

• For items whose SRT codes are set, “CMPLT” is displayed on the CONSULT screen; for items whose SRT

codes are not set, “INCMP” is displayed.

• “SRT STATUS” provides the presence or absence of permanent DTCs stored in ECM memory.

PERMANENT DTC STATUS Mode

How to display permanent DTC status

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select “PERMANENT DTC STATUS” in “DTC & SRT CONFIRMATION” mode with CONSULT.

NOTE:

Permanent DTCs stored in ECM memory are displayed on the CONSULT screen to show if a driving pat-

tern required for erasing permanent DTCs is complete (CMPLT) or incomplete (INCMP).

CAUTION:

ALTERNATOR DUTY

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

SULT.

Battery voltage changes.

• Harness and connectors
• Alternator
• IPDM E/R

POWER BALANCE

• Engine: After warming up, idle

the engine.

• A/C switch OFF
• Shift lever: P or N (CVT), Neutral

(M/T)

• Cut off each fuel injector signal

one at a time using CONSULT.

Engine runs rough or dies.

• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil

Test item

Condition

Judgement

Check item (Remedy)

Test mode

Test item

Corresponding DTC No.

Reference page

EVAPORATIVE SYS-
TEM

PURG VOL CN/V P1444

P0443

EC-360

PURG FLOW P0441

P0441

EC-355

HO2S2

HO2S2 (B1) P1146

P0138

EC-279

HO2S2 (B1) P1147

P0137

EC-273

HO2S2 (B1) P0139

P0139

EC-286

A/F SEN1

A/F SEN1 (B1) P1278/P1279

—

A/F SEN1 (B1) P1276

P0130

EC-263

Revision: November 2015

2016 JUKE