Nissan Juke (2014 year). Service Repair Manual

LAN-20

< HOW TO USE THIS MANUAL >

[CAN]

HOW TO USE THIS SECTION

HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Caution

INFOID:0000000009749865

• This section describes information peculiar to a vehicle and inspection procedures.
• For trouble diagnosis procedure, refer to

LAN-15, "Trouble Diagnosis Procedure"

Abbreviation List

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Unit name abbreviations in CONSULT CAN diagnosis and in this section are as per the following list.

Abbreviation

Unit name

4WD

AWD control module

A-BAG

Air bag diagnosis sensor unit

ABS

ABS actuator and electric unit (control unit)

BCM

DLC

Data link connector

ECM

EPS

EPS control unit

HVAC

A/C auto amp.

IPDM-E

IPDM E/R

M&A

Combination meter

MDU

Multi display unit

STRG

Steering angle sensor

TCM

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2014 JUKE

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PRECAUTIONS

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[CAN]

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

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The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precautions for Removing of Battery Terminal

INFOID:0000000010199438

• When removing the 12V battery terminal, turn OFF the ignition

switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.

• For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.

• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

Precautions for Trouble Diagnosis

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CAUTION:

• Never apply 7.0 V or more to the measurement terminal.
• Use a tester with open terminal voltage of 7.0 V or less.

SEF289H

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2014 JUKE

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COMPONENT PARTS

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< SYSTEM DESCRIPTION >

[CAN]

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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Multi display unit

ABS actuator and electric unit (con-
trol unit)

A/C auto amp.

ECM

IPDM E/R

TCM

EPS control unit

Combination meter

BCM

10. Data link connector

11.

Steering angle sensor

12. AWD control module

13. Air bag diagnosis sensor unit

JSMIA0447ZZ

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2014 JUKE

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< SYSTEM DESCRIPTION >

[CAN]

SYSTEM

SYSTEM

CAN COMMUNICATION SYSTEM

CAN COMMUNICATION SYSTEM : System Diagram

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CAN COMMUNICATION SYSTEM : System Description

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Description

• CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle

multiplex communication line with high data communication speed and excellent error detection ability. Many
electronic control units are equipped onto a vehicle, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with
less wiring. Each control unit transmits/receives data but selectively reads required data only.

• Termination circuits (resistors) are connected across the CAN communication system. When transmitting a

CAN communication signal, each control unit passes a current to the CAN-H line and the current returns to
the CAN-L line. The current flows separately into the termination circuits connected across the CAN commu-
nication system and the termination circuits drop voltage to generate a potential difference between the
CAN-H line and the CAN-L line. The system produces digital signals for signal communications, by using the
potential difference.

CAN Communication Line

JSMIA0583GB

JSMIA0450GB

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SYSTEM

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< SYSTEM DESCRIPTION >

[CAN]

The CAN communication line is a twisted pair wire consisting of
strands of CAN-H (1) and CAN-L (2) and has noise immunity.

NOTE:
The CAN communication system has the characteristics of noise-resistant because this system produces dig-
ital signals by using the potential difference between the CAN-H line and the CAN-L line and has the twisted
pair wire structure.
Since the CAN-H line and the CAN-L line are always adjacent to
each other, the same degree of noise occurs, respectively, when a
noise (1) occurs. Although the noise changes the voltage, the poten-
tial difference (2) between the CAN-H line and the CAN-L line is
insensitive to noise. Therefore, noise-resistant signals can be
obtained.

CAN Signal Communications

Each control unit of the CAN communication system transmits signals through the CAN communication con-
trol circuit included in the control unit and receives only necessary signals from each control unit to perform
various kinds of control.
• Example: Transmitted signals

JSMIA0382ZZ

JSMIA0383ZZ

JSMIA0584GB

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SYSTEM

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< SYSTEM DESCRIPTION >

[CAN]

*: These are the only control units wired with both ends of CAN communication system.

CAN COMMUNICATION SYSTEM : CAN System Specification Chart

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Determine CAN system type from the following specification chart.
NOTE:
Refer to

LAN-15, "Trouble Diagnosis Procedure"

for how to use CAN system specification chart.

: Applicable

VEHICLE EQUIPMENT IDENTIFICATION INFORMATION

NOTE:
Check CAN system type from the vehicle shape and equipment.

Noise filter

It eliminates noise of CAN communication signal.

Termination circuit

(Resistance of approx. 120

Ω

)

Generates a potential difference between CAN-H and CAN-L.

Component

System description

Body type

Hatch back

Axle

2WD

AWD

Engine

MR16DDT

Transmission

M/T

CVT

Brake control

VDC

Integrated Control system

CAN system type

CAN communication unit

ECM

AWD control module

ABS actuator and electric unit (control unit)

IPDM E/R

TCM

Data link connector

EPS control unit

Combination meter

Steering angle sensor

Air bag diagnosis sensor unit

A/C auto amp.

Multi display unit

BCM

Multi display unit

With Integrated Control system

JSMIA0454ZZ

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< SYSTEM DESCRIPTION >

[CAN]

SYSTEM

CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart

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Refer to

LAN-14, "How to Use CAN Communication Signal Chart"

for how to use CAN communication signal

chart.
NOTE:
Refer to

LAN-20, "Abbreviation List"

for the abbreviations of the connecting units.

T: Transmit

R: Receive

Signal name/Connecting unit

ECM

4WD

ABS

IPDM

-E

TCM

EPS

M&A

STRG

MDU

BCM

A/C compressor request signal

Accelerator pedal position signal

ASCD status signal

Boost pressure signal

Closed throttle position signal

Cooling fan speed request signal

Engine and CVT integrated control signal

Engine coolant temperature signal

Engine speed signal

Engine status signal

Engine torque signal

Fuel consumption monitor signal

Malfunctioning indicator signal

Oil pressure warning lamp signal

Power generation command value signal

Speed limiter operation signal

Starter motor relay cut off signal

AWD mode indicator signal

AWD warning lamp signal

Current AWD mode signal

Target engine torque signal

Torque vectoring indicator signal

ABS malfunction signal

ABS operation signal

ABS warning lamp signal

Brake warning lamp signal

Decel G sensor signal

Request drive torque signal

Side G sensor signal

Stop lamp switch signal

Target throttle position signal

TCS malfunction signal

TCS operation signal

VDC malfunction signal

VDC OFF indicator lamp signal

Revision: 2013 October

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SYSTEM

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< SYSTEM DESCRIPTION >

[CAN]

VDC operation signal

VDC warning lamp signal

Vehicle speed signal (ABS)

Yaw rate signal

Back-up lamp switch signal

Detention switch signal

Front wiper stop position signal

High beam status signal

Ignition switch ON signal

Ignition switch signal

Interlock/PNP switch signal

Low beam status signal

Push-button ignition switch status signal

Sleep-ready signal

Starter control relay signal

Starter relay status signal

Starter motor relay/Starter motor control relay con-
trol signal

ATF temperature signal

Current gear position signal

CVT indicator signal

CVT ratio signal

Input shaft revolution signal

Manual mode shift refusal signal

N range signal

Next gear position signal

Output shaft revolution signal

P range signal

R range signal

Shift position signal

Vehicle speed signal (TCM)

Drive mode select signal

EPS operation signal

EPS warning lamp signal

Brake fluid level switch signal

Manual mode shift down signal

Manual mode shift up signal

Manual mode signal

Signal name/Connecting unit

ECM

4WD

ABS

IPDM

-E

TCM

EPS

M&A

STRG

MDU

BCM

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< SYSTEM DESCRIPTION >

[CAN]

SYSTEM

Non-manual mode signal

Paddle shift up signal

Paddle shift down signal

Odometer signal

Parking brake switch signal

Seat belt buckle switch signal (driver side) signal

Vehicle speed signal (Meter)

Wake up signal

Steering angle sensor malfunction signal

Steering angle sensor signal

Steering calibration signal

ECO mode signal

NORMAL mode signal

SPORT mode signal

A/C display signal

A/C ECO setting signal

A/C operation signal

Rear window defogger switch signal

Idle up request signal

A/C ON signal

Blower fan ON signal

Buzzer output signal

Daytime running light request signal

Door switch signal

Engine start operation indicator lamp signal

Front fog light request signal

Front wiper request signal

Front wiper service position signal

High beam request signal

Horn reminder signal

Key warning lamp signal

LOCK warning lamp signal

Low beam request signal

Low tire pressure warning lamp signal

Position light request signal

Rear window defogger control signal

Shift P warning lamp signal

Sleep wake up signal

Theft warning horn request signal

TPMS malfunction warning lamp signal

Turn indicator signal

Signal name/Connecting unit

ECM

4WD

ABS

IPDM

-E

TCM

EPS

M&A

STRG

MDU

BCM

Revision: 2013 October

2014 JUKE

Nissan Juke (2014 year). Service Repair Manual - part 166