Mitsubishi Outlander XL. Manual — part 1338

VOLTAGE VARIATION OF LIN BUS LINE

ZC5008030000

Voltage variation of
LIN bus line:

State:

Theoretical value:

Battery voltage

GND

(Ground level)

Recessive

Dominant

Recessive

When each ECU sends or receives signals, LIN bus
line voltage varies as follows:

｠

The voltage variation of LIN bus line (0 and 1
combination as a theoretical value) ranging

between battery voltage (recessive) and 0 V
(dominant) is output (transmitted) as a control
signal.

｠

When no communication is established, the LIN bus
line remains recessive (battery voltage).

MESSAGE FRAME

ZC5008040000

Message frame

Header

Response

a: Synchronization start region

b: Synchronization region

c: Identifier region

d: Data region

e: Checksum region

Theoretical value:

1 (Recessive)

0 (Dominant)

A message frame consists of regions that include a
synchronization start region, identifier region, data

region, and checksum region. A few bits of recessive
data is used to separate the frame from each region.

Frame

Region name

Description

Header

Synchronization
start region

A region that informs each ECU of the starting of header transmission
by sending dominant signals for a given period of time.

Synchronization
region

A region that synchronizes the transmission cycle of each ECU
connected to the LIN bus line (the slave ECU matches its communication
speed to that of the master ECU).

Identifier region

A region that stores an ID to call the slave ECU defined by the LIN
protocol. The number of bytes for the data region is also defined in this
region.

Response

Data region

A region to store the control data used by ECU that is called by the header

54C-4

LOCAL INTERCONNECT NETWORK (LIN)

SYSTEM OPERATION

Frame

Region name

Description

Checksum region

A region for checking errors in data content The sending-end ECU
calculates data region value according to the specified computing
equation, and the result is stored in this filed. The receiving-end ECU
detects the transmission error based on the checksum filed value.

LOCAL INTERCONNECT NETWORK (LIN)

54C-5

SYSTEM OPERATION

MEMO

54C-6

LOCAL INTERCONNECT NETWORK (LIN)

16-1

GROUP 16

ENGINE

ELECTRICAL

CONTENTS

CHARGING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .