Nissan Juke (2014 year). Service Repair Manual

EC-70

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

NOTE:
Wait until the same DTC (or 1st trip DTC) appears to completely confirm all DTCs.

How to Read Self-diagnostic Results

The DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test
mode I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MIL
illuminates in “malfunction warning” mode, it is a DTC; if two or more codes are displayed, they may be either
DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified codes can be identified by
using the CONSULT or GST. A DTC will be used as an example for how to read a code.

A particular trouble code can be identified by the number of four-digit numeral flashes per the following.

The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds consisting of an ON (0.6-sec-
onds) - OFF (0.6-seconds) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-seconds ON and 0.3-seconds OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-seconds OFF.

PBIB0092E

PBIB3005E

Number

Flashes

Revision: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-71

< SYSTEM DESCRIPTION >

[MR16DDT ]

In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. Refer to

EC-101, "DTC Index"

How to Erase Self-diagnostic Results

By performing this procedure, ECM memory is erased and the following diagnostic information is erased as
well.
• Diagnostic trouble codes
• 1st trip diagnostic trouble codes
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values
NOTE:
Also, if a battery terminal is disconnected, ECM memory is erased and the diagnostic information as listed
above is erased. (The amount of time required for erasing may vary from a few seconds to several hours.)

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Set ECM in “self-diagnostic results” mode.

The diagnostic information has been erased from the backup memory in the ECM.
Fully depress the accelerator pedal and keep it depressed for more than 10 seconds.

Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.

CONSULT Function

INFOID:0000000009753117

FUNCTION

*: The following emission-related diagnostic information is cleared when the ECM memory is erased.

• Diagnostic trouble codes

• 1st trip diagnostic trouble codes

• Freeze frame data

• 1st trip freeze frame data

• System readiness test (SRT) codes

• Test values

SELF DIAGNOSTIC RESULTS MODE

Self Diagnostic Item

Regarding items of DTC and 1st trip DTC, refer to

EC-101, "DTC Index"

How to Read DTC and 1st Trip DTC

DTCs and 1st trip DTCs related to the malfunction are displayed in “self-diag results”.
• When ECM detects a 1st trip DTC, “1t” is displayed for “TIME”.
• When ECM has detected a current DTC, “0” is displayed for “TIME”.
• If “TIME” is neither “0” nor “1t”, the DTC occurred in the past and ECM shows the number of times the vehi-

cle has been driven since the last detection of the DTC.

Diagnostic test mode

Function

Self Diagnostic Results

Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*

Data Monitor

Input/Output data in the ECM can be read.

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on the CONSULT unit.

Active Test

Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also shifts
some parameters in a specified range.

ECU Identification

ECM part number can be read.

DTC Work Support

The status of system monitoring tests and the self-diagnosis status/results can be confirmed.

Revision: 2013 October

2014 JUKE

EC-72

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

How to Erase DTC and 1st Trip DTC

NOTE:
• If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10

seconds and then turn it ON (engine stopped) again.

• If the DTC is not for CVT related items (see

EC-101, "DTC Index"

), skip step 1.

Erase DTC in TCM. Refer to

TM-185, "CONSULT Function"

Select “ENGINE” with CONSULT.

Select “SELF-DIAG RESULTS”.

Touch “ERASE”. (DTC in ECM will be erased.)

Freeze Frame Data and 1st Trip Freeze Frame Data

*: The items are the same as those of 1st trip freeze frame data.

DATA MONITOR MODE

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

Monitored Item

For reference values of the following items, refer to

EC-82, "Reference Value"

Freeze frame data

item*

Description

DIAG TROUBLE
CODE
[PXXXX]

• The engine control component part/control system has a trouble code the is displayed as PXXXX. (Refer to

EC-101, "DTC Index"

FUEL SYS-B1

• “Fuel injection system status” at the moment a malfunction is detected is displayed.
• One of the following mode 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 [

or [

• 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 sched-

ule.

S-FUEL TRM-B2 [%]

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 opening 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 [

or [

• The intake air temperature at the moment a malfunction is detected is displayed.

INT MANI PRES [kPa]

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

COMBUST CONDI-
TION

Revision: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-73

< SYSTEM DESCRIPTION >

[MR16DDT ]

: Applicable

Monitored item

Unit

Monitor Item Selec-

tion

Description

Remarks

ECU IN-

PUT
SIG-

NALS

MAIN

SIG-

NALS

ENG SPEED

rpm

Indicates the engine speed computed
from the signal of the crankshaft posi-
tion sensor (POS) and camshaft posi-
tion 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

The signal voltage of the mass air flow
sensor is displayed.

• When the engine is

stopped, a certain value is
indicated.

• When engine is running

specification range is indi-
cated in “SPEC”.

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 speci-
fication range is indicated in
“SPEC”.

A/F ALPHA-B1

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.

• When engine is running

specification range is indi-
cated in “SPEC”.

• This data also includes the

data for the air-fuel ratio
learning control.

COOLANT TEMP/S

C or

The engine coolant temperature (de-
termined by the signal voltage of the
engine coolant temperature sensor) is
displayed.

When the engine coolant tem-
perature sensor is open or
short-circuited, ECM enters
fail-safe mode. The engine
coolant temperature deter-
mined by the ECM is dis-
played.

A/F SEN1 (B1)

The A/F signal computed from the in-
put signal of the air fuel ratio (A/F) sen-
sor 1 is displayed.

HO2S2 (B1)

The signal voltage of the heated oxy-
gen 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 combi-
nation meter is displayed.

BATTERY VOLT

The power supply voltage of ECM is
displayed.

Revision: 2013 October

2014 JUKE

EC-74

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

ACCEL SEN 1

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

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

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

EVAP SYS PRES

The signal voltage of EVAP control
system pressure sensor is displayed.

FUEL LEVEL SE

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: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-75

< SYSTEM DESCRIPTION >

[MR16DDT ]

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)

Indicates [

CA] of intake camshaft ad-

vance angle.

EXHV TIM B1

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: 2013 October

2014 JUKE

EC-76

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

TRVL AFTER MIL

km/h or mph

Distance traveled while MIL is activat-
ed.

ENG OIL TEMP

C or

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: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-77

< SYSTEM DESCRIPTION >

[MR16DDT ]

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

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

The intake air temperature (deter-
mined by the signal voltage of the in-
take air temperature sensor1) is
indicated.

AC PRESS SEN

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

The turbocharger boost sensor signal
voltage is displayed.

ATOM PRES SEN

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

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: 2013 October

2014 JUKE

EC-78

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

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

The signal voltage of FRP sensor is
displayed.

EOP SENSOR

The signal voltage of EOP sensor is
displayed.

ECM TEMP 1

C or

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

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: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-79

< SYSTEM DESCRIPTION >

[MR16DDT ]

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

—

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.

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

• No vacuum and no high pressure in EVAP system
• Fuel tank temperature is more than 0

C (32

• 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

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.

Revision: 2013 October

2014 JUKE

EC-80

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

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

ACTIVE TEST MODE

Test Item

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

DTC WORK SUPPORT MODE

Test Item

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

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 mode

Test item

Corresponding DTC No.

Reference page

EVAPORATIVE SYS-
TEM

PURG VOL CN/V P1444

P0443

EC-347

PURG FLOW P0441

P0441

EC-342

Revision: 2013 October

2014 JUKE

DIAGNOSIS SYSTEM (ECM)

EC-81

< SYSTEM DESCRIPTION >

[MR16DDT ]

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

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

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:

Since the “PERMANENT DTC STATUS” screen displays the previous trip information, repeat the
following twice to update the information: “Ignition switch OFF”, “Wait for more than 10 seconds”
and “Ignition switch ON”.

NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.

SRT WORK SUPPORT Mode

This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.

PERMANENT DTC WORK SUPPORT Mode

This mode enables a technician to drive a vehicle to complete the driving pattern that is required for erasing
permanent DTC.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.

HO2S2

HO2S2 (B1) P1146

P0138

EC-265

HO2S2 (B1) P1147

P0137

EC-259

HO2S2 (B1) P0139

P0139

EC-272

A/F SEN1

A/F SEN1 (B1) P1278/P1279

—

A/F SEN1 (B1) P1276

P0130

EC-249

Test mode

Test item

Corresponding DTC No.

Reference page

JSBIA0062GB

Revision: 2013 October

2014 JUKE

EC-82

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

ECU DIAGNOSIS INFORMATION

ECM

Reference Value

INFOID:0000000009753118

VALUES ON THE DIAGNOSIS TOOL

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

Numerical values in the following table are reference values.

These values are input/output values that ECM receives/transmits and may differ from actual operations.

Example:
The ignition timing shown by the timing light may differ from the ignition timing displayed on the data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from the
cam shaft position sensor and other sensors related to ignition timing.
For outlines of following items, refer to

EC-71, "CONSULT Function"

Monitor Item

Condition

Values/Status

ENG SPEED

Run engine and compare CONSULT value with the tachometer indication.

Almost the same speed as

the tachometer indication.

MAS A/F SE-B1

See

EC-164, "Diagnosis Procedure"

B/FUEL SCHDL

See

EC-164, "Diagnosis Procedure"

A/F ALPHA-B1

See

EC-164, "Diagnosis Procedure"

COOLANT TEMP/S

Engine: After warming up

More than 70

C (158

A/F SEN1 (B1)

Engine: After warming up

Maintaining engine speed at 2,000 rpm

Fluctuates around 2.2 V

HO2S2 (B1)

• Revving engine from idle up to 3,000 rpm quickly after the following conditions

are met.

- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at

idle for 1 minute under no load

0 - 0.3 V

←→

Approx. 0.6 -

1.0 V

HO2S2 MNTR(B1)

• Revving engine from idle up to 3,000 rpm quickly after the following conditions

are met.

- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at

idle for 1 minute under no load

LEAN

←→

RICH

VHCL SPEED SE

Turn drive wheels and compare CONSULT value with the speedometer indica-
tion.

Almost the same speed as

speedometer indication.

BATTERY VOLT

Ignition switch: ON (Engine stopped)

11 - 14 V

ACCEL SEN 1

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.6 - 0.9 V

Accelerator pedal: Fully depressed

4.0 - 4.8 V

ACCEL SEN 2

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.3 - 4.7 V

Accelerator pedal: Fully depressed

1.95 - 2.4 V

TP SEN 1-B1

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (CVT), 1st (M/T)

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

TP SEN 2-B1*

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (CVT), 1st (M/T)

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

FUEL T/TMP SE

Ignition switch: ON

Indicates fuel tank tempera-

ture.

EVAP SYS PRES

Ignition switch: ON

Approx 0.5 - 4.6 V

FUEL LEVEL SE

Ignition switch: ON

Depending on fuel level of

fuel tank.

START SIGNAL

Ignition switch: ON

→

START

→

OFF

→

OFF

Revision: 2013 October

2014 JUKE

ECM

EC-83

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

CLSD THL POS

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

Accelerator pedal: Slightly depressed

OFF

AIR COND SIG

Engine: After warming up, idle the
engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates.)

PW/ST SIGNAL

Engine: After warming up, idle the
engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

LOAD SIGNAL

Ignition switch: ON

Rear window defogger switch: ON
and/or Lighting switch: 2nd position

Rear window defogger switch and lighting
switch: OFF

OFF

IGNITION SW

Ignition switch: ON

→

OFF

→

OFF

→

HEATER FAN SW

Engine: After warming up, idle the
engine

Heater fan switch: ON

Heater fan switch: OFF

OFF

BRAKE SW

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

IGN TIMING

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

- 15

BTDC

2,000 rpm

- 50

BTDC

COMBUSTION

—

These items are displayed

but are not applicable to this

model.

CAL/LD VALUE

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5 - 35 %

2,500 rpm

5 - 35 %

MASS AIRFLOW

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

1.0 - 5.0 g/s

2,500 rpm

2.0 - 10.0 g/s

PURG VOL C/V

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.)

0 - 10 %

2,000 rpm

0 - 20 %

INT/V TIM(B1)

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

−

- 5

2,000 rpm

Approx. 0

- 20

EXH/V TIM B1

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

−

- 5

Around 2,500 rpm while the engine speed
is rising

Approx. 0

- 30

INT/V SOL(B1)

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

0 %

2,000 rpm

Approx. 0% - 60 %

Monitor Item

Condition

Values/Status

Revision: 2013 October

2014 JUKE

EC-84

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

AIR COND RLY

Engine: After warming up, idle the
engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates)

VENT CONT/V

Ignition switch: ON

OFF

FUEL PUMP RLY

• For 1 seconds after turning ignition switch: ON
• Engine running or cranking

Except above

OFF

THRTL RELAY

Ignition switch: ON

HO2S2 HTR (B1)

• Engine speed: 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 load

Engine speed: Above 3,600 rpm

OFF

ALT DUTY SIG

Power generation voltage variable control: Operating

Power generation voltage variable control: Not operating

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 value with the speedometer indica-
tion.

Almost the same speed as

the speedometer indication

IDL A/V LEARN

Engine: running

Idle air volume learning has not been per-
formed yet.

YET

Idle air volume learning has already been
performed successfully.

CMPLT

TRVL AFTER MIL

Ignition switch: ON

Vehicle has traveled after MIL has illumi-
nated.

0 - 65,535 km (0 - 40,723

miles)

ENG OIL TEMP

Engine: After warming up

More than 70

C (158

A/F S1 HTR(B1)

Engine: After warming up, idle the engine
(More than 140 seconds after starting engine)

4 - 100 %

SET VHCL SPD

Engine: Running

ASCD: Operating

The preset vehicle speed is

displayed

MAIN SW

Ignition switch: ON

MAIN switch: Pressed

MAIN switch: Released

OFF

CANCEL SW

Ignition switch: ON

CANCEL switch: Pressed

CANCEL switch: Released

OFF

RESUME/ACC SW

Ignition switch: ON

ACCEL/RES switch: Pressed

ACCEL/RES switch: Released

OFF

SET SW

Ignition switch: ON

COAST/SET switch: Pressed

COAST/SET switch: Released

OFF

BRAKE SW1
(Brake pedal posi-
tion switch)

Ignition switch: ON

Brake pedal: Fully released

Brake pedal: Slightly depressed

OFF

BRAKE SW2
(Stop lamp switch)

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

VHCL SPD CUT

Ignition switch: ON

NON

LO SPEED CUT

Ignition switch: ON

NON

AT OD MONITOR

Ignition switch: ON

OFF

AT OD CANCEL

Ignition switch: ON

OFF

CRUISE LAMP

Ignition switch: ON

MAIN switch: Pressed at the 1st time

→

at the 2nd time

→

OFF

Monitor Item

Condition

Values/Status

Revision: 2013 October

2014 JUKE

ECM

EC-85

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

SET LAMP

NOTE:
The item is indicated, but not used.

FAN DUTY

Engine: Running

0 - 100 %

ALT DUTY

Engine: Idle

0 - 80 %

BAT CUR SEN

• Engine speed: Idle

• Battery: Fully charged

• Selector lever: P or N (CVT), Neutral (M/T)
• Air conditioner switch: OFF
• No load

Approx. 2,600 - 3,500 mV

A/F ADJ-B1

Engine: Running

−

0.450 - 0.330

P/N POSI SW

Ignition switch: ON

Selector lever: P or N (CVT), Neutral (M/
T)

Selector lever: Except above

OFF

INT/A TEMP SE

Ignition switch: ON

Indicates intake air tempera-

ture

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0 V

FUEL PRES SEN

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 2.74 MPa

2,000 rpm

Approx. 3.0 MPa

TURBO BST SEN

• Engine speed: Idle
• Selector lever: D (CVT), Neutral

(M/T)

• Fuel: Premium gasoline

• The accelerator pedal is depressed to

a half stroke position or more.

• The readings of boost in the multi-func-

tion meter are the same as the ambient
pressure or more.

• Engine speed: More than 3,000 rpm

3.07 - 3.15 V

• Engine speed: Idle
• Selector lever: D (CVT), Neutral

(M/T)

• Fuel: Regular gasoline

• The accelerator pedal is depressed to

a half stroke position or more.

• The readings of boost in the multi-func-

tion meter are the same as the ambient
pressure or more.

• Engine speed: More than 3,000 rpm

2.91 - 2.99 V

ATOM PRES SEN

Ignition switch: ON

1.80 - 4.80 V

FUEL INJ TIM

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 30 deg

2,000 rpm

Approx. 30 deg

FUEL INJ B1

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 0.8 msec

2,000 rpm

Approx. 1.1 msec

EVAP LEAK DIAG

Ignition switch: ON

Indicates the condition of

EVAP leak diagnosis.

EVAP DIAG READY

Ignition switch: ON

Indicates the ready condition

of EVAP leak diagnosis.

BAT TEMP SEN

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Indicates the temperature

around the battery.

THRTL STK CNT B1

NOTE:
The item is indicated, but not used.

—

Monitor Item

Condition

Values/Status

Revision: 2013 October

2014 JUKE

Nissan Juke (2014 year). Service Repair Manual - part 83