Nissan Primera P12. Instruction — part 523

LAN-4

[CAN]

PRECAUTIONS

[CAN]

PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”

EKS009QJ

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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Instruction.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions For Trouble Diagnosis

EKS009QK

CAN SYSTEM

●

Do not apply voltage of 7.0V or higher to the measurement terminals.

●

Use the tester with its open terminal voltage being 7.0V or less.

●

Be sure to turn ignition switch off and disconnect negative battery cable before checking the circuit.

Precautions For Harness Repair

EKS009QL

CAN SYSTEM

●

Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in)]

●

Do not perform bypass wire connections for the repair
parts.(The spliced wire will become separated and the charac-
teristics of twisted line will be lost.)

PKIA0306E

PKIA0307E

CAN COMMUNICATION

LAN-5

[CAN]

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LAN

CAN COMMUNICATION

PFP:23710

System Description

EKS009QM

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic 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.

CAN Communication Unit

EKS009QN

Go to CAN system, when selecting your car model from the following table.

×

:Applicable

Body type

Sedan/Wagon/Hatch back

Axle

2WD

Engine

YD22DDTi

F9Q

Transmission

M/T

Brake control

ESP

ABS

ESP

ABS

CAN communication unit

ECM

×

×

×

×

×

×

×

×

ESP/TCS/ABS control unit

×

×

×

×

ABS actuator and electric
unit (control unit)

×

×

×

×

Data link connector

×

×

×

×

×

×

×

×

Tyre pressure monitoring
control unit

×

×

×

×

Steering angle sensor

×

×

×

×

Smart entrance control unit

×

×

×

×

×

×

×

×

Combination meter

×

×

×

×

×

×

×

×

Can communication type

LAN-6, "TYPE

21,TYPE22/TYPE29,

TYPE30"

LAN-7, "TYPE

23,TYPE24/TYPE31,

TYPE32"

LAN-8, "TYPE 25/

TYPE26"

LAN-9, "TYPE 27/
TYPE28"

Can system
trouble diagno-
sis

LHD
models

LAN-10,

"CAN

SYSTEM

(TYPE

21)"

LAN-28,

"CAN

SYSTEM

(TYPE

22)"

LAN-41,

"CAN

SYSTEM

(TYPE

23)"

LAN-57,

"CAN

SYSTEM

(TYPE

24)"

LAN-70,

"CAN

SYSTEM

(TYPE

25)"

LAN-88,

"CAN

SYSTEM

(TYPE

26)"

LAN-104,

"CAN

SYSTEM

(TYPE

27)"

LAN-122,

"CAN

SYSTEM

(TYPE

28)"

RHD
models

LAN-138,

"CAN

SYSTEM

(TYPE

29)"

LAN-157,

"CAN

SYSTEM

(TYPE

30)"

LAN-172,

"CAN

SYSTEM

(TYPE

31)"

LAN-188,

"CAN

SYSTEM

(TYPE

32)"

-

-

-

-

LAN-6

[CAN]

CAN COMMUNICATION

TYPE 21,TYPE22/TYPE29, TYPE30
System diagram

●

LHD models (Type21, Type22)

●

RHD models (Type29, Type30)

Input/output signal chart

T: Transmit R: Receive

SKIA1524E

SKIA1538E

Signals

ECM

ESP/ TCS /

ABS control

unit

Steering

angle sensor

Smart

entrance

control unit

Tyre pres-

sure monitor-

ing control

unit

Combination

meter

Engine speed signal

T

R

R

Accelerator pedal position signal

T

R

Steering angle sensor signal

R

T

Air conditioner switch signal

R

T

MI signal

T

R

Glow indicator lamp signal

T

R

Engine coolant temperature signal

T

R

Fuel consumption signal

T

R

Vehicle speed signal

T

R

R

R

T

Seat belt reminder signal

R

T

Lighting switch position signal

T

R

Flashing indicator signal

T

R

Engine cooling fan speed signal

T

R

Child lock indicator signal

T

R

Door switches state signal

T

R

A/C compressor signal

T

R

Tyre pressure signal

T

R

ASCD SET lamp signal

T

R

ASCD CRUISE lamp signal

T

R

CAN COMMUNICATION

LAN-7

[CAN]

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LAN

TYPE 23,TYPE24/TYPE31, TYPE32
System diagram

●

LHD models (Type23, Type24)

●

RHD models (Type31, Type32)

Input/output signal chart

T: Transmit R: Receive

SKIA1525E

SKIA1539E

Signals

ECM

ABS actuator

and electric

unit (control

unit)

Smart entrance

control unit

Tyre pressure

monitoring

control unit

Combination

meter

Engine speed signal

T

R

Air conditioner switch signal

R

T

MI signal

T

R

Glow indicator lamp signal

*1

T

R

Engine coolant temperature signal

T

R

Fuel consumption signal

T

R

Vehicle speed signal

T

R

R

R

T

Seat belt reminder signal

R

T

Lighting switch position signal

T

R

Flashing indicator signal

T

R

Engine cooling fan speed signal

T

R

Child lock indicator signal

T

R

Door switches state signal

T

R

A/C compressor signal

T

R

Tyre pressure signal

T

R

ASCD SET lamp signal

T

R

ASCD CRUISE lamp signal

T

R