Mitsubishi Outlander XL. Manual - part 1337

Rear floor console

Audio and video adopter

ZC3049500000

SYSTEM BLOCK DIAGRAM

ZC3064110000

AC507976

Rear display unit

Radio and CD player or CD changer 
or audio visual navigation unit

Wireless headphone

Wireless remote 
controller

Speaker

Audio and 
video adopter

Play sound

External input picture

External input sound

Sound 

Picture

54B-10

AUDIO AND NAVIGATION SYSTEM

REAR ENTERTAINMENT SYSTEM

GROUP 54C

LOCAL INTERCONNECT NETWORK

(LIN)

CONTENTS

GENERAL INFORMATION............

54C-2

STRUCTURE......................

54C-2

SYSTEM OPERATION...............

54C-3

54C-1

GENERAL INFORMATION

M25403000001USA0000010000

LIN refers to "Local Interconnect Network," which is a
serial

 multiplex

 communication

protocol*administrated  by  LIN  consortium.  A
communication  circuit  employing  the  LIN  protocol
connects each ECU, and switch and sensor data can

be  shared  among  ECUs,  which  enables  more
reduction in wiring.

NOTE: 

 *: The regulations that have been decided

in detail, from software matters such as the
necessary transmission rate for communication,
the system, data format, and communication timing
control method to hardware matters such as the
harness type and length and the resistance values.

STRUCTURE

M25403000002USA0000010000

ZC6007390000

ETACS-ECU

Column switch
(Column-ECU)

Power window  
main switch

Sunroof motor  
assembly

LIN bus line

Master ECU

Slave ECU

Slave ECU

Slave ECU

Master and slave ECUs are connected to the LIN bus
lines. The master ECU is the ETACS*-ECU, and the
slave ECUs are the column switch (column-ECU), the
power  window  main  switch  and  the  sunroof  motor
assembly.  The  master  ECU  requests  these  slave

ECUs to communicate each other via communication
lines.

NOTE: 

 *: ETACS (Electronic Time and Alarm

Control System)

54C-2

LOCAL INTERCONNECT NETWORK (LIN)

GENERAL INFORMATION

SYSTEM OPERATION

M25403000003USA0000010000

ZC5008020000

Master ECU

Slave ECU

Slave ECU

Slave task A

Slave task B

Master task

Slave task D

Slave task C

LIN bus line

Byte area

Theory 
value:

1

0

Start bit

Stop bit

Data bit

1 byte

State of message on LIN bus line

<Master task>

Transmits the header   
at regular intervals.

Response

Slave task D

Header

Slave task A

Response

Header

Slave task C

Slave task B

Response

Header

Response

Header

Time

<

Slave task

>

Transmits the   
response to suit 
the header

LIN communication system is described below:

｠

The  master  ECU  performs  the  master  tasks  and
slave tasks, and the slave ECUs perform the slave
tasks.

｠

When the master ECU performs a master task, the
header  frame  which  stores  information  to  call
certain slave tasks (ECU) is transmitted at regular
intervals.

｠

When the master ECU and slave ECU perform a
slave  task,  the  ECU  called  by  the  header  frame

transmits  the  response  frame  which  stores  data
used for control.

｠

A header and response collectively are called as a
message  frame,  and  the  communication  method
that uses the message frame is called as the frame
communication.

｠

Basically,  the  communication  data  is  used  with
some  blocks  of  10-bit  data  group  which  includes
one start bit and one stop bit (byte region) arranged
in order.

LOCAL INTERCONNECT NETWORK (LIN)

54C-3

SYSTEM OPERATION