Mitsubishi Grandis. Manual - part 2

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-5

GENERAL INFORMATION

M1549000100522

The exclusive signal lines for transmitting the 
multi-distribution data are connected as follows 
between the ETACS-ECU, column switch 
(incorporated inside the column-ECU), front-ECU, 
power window main switch (incorporated inside the 
power window-ECU), power window sub switches 
(incorporated inside the power window-ECU), and 
sunroof motor assembly for internal communication.

AC311854

ETACS-ECU

A/C-ECU

SRS-ECU

Combination meter

ABS-ECU <without ASC>

ASC-ECU <with ASC>

Centre display

Steering wheel sensor

Engine-A/T-ECU <A/T>

Engine-ECU <M/T>

Sunroof motor assembly

Power window main switch

Power window sub switch 
(Front)

Power window sub switch
(Rear LH)

Power window sub switch
(Rear RH)

Column switch

Front-ECU

AB

: Bidirectional communication

: Unidirectional communication

CAN communication

SWS communication

Communication 

between doors

or

or

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-6

BUZZER
LAMP REMINDER BUZZER FUNCTION

When the ignition key is removed and then the 
driver's door is opened with turning ON the tail lamp 
or the headlamp, the buzzer sounds continuously to 
alert the driver that the lamp is still ON.
However, if the tail lamp or the headlamp is turned off 
by the headlamp automatic-shutdown off function, 
the buzzer does not sound.

AC208400

ON

OFF

ON (Open)

OFF (Closed)

ON (Buzzer 
sounds)

OFF (Buzzer 
does not sound)

Tail lamp or 
headlamp

Driver's
door
switch

Buzzer 
output

AC

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-7

SEAT BELT WARNING BUZZER 
FUNCTION

AC309952

ON

OFF

ON (Unfastened)

OFF (Fastened)

Ignition switch (IG1)

Seatbelt switch
(Driver's side)

ON (Unfastened)

OFF (Fastened)

Seatbelt switch
(Passenger's side)

8 km/h

0 km/h

Vehicle speed

3 km/h

ON

OFF

b: approximately 0.5 second

b: approximately 0.5 second

d: 1 second

AB

b

b

b

b

b

b

c

c

a

b

b

d

d

d

d

d

d

e

12 cycles

1 cycle

ON (Buzzer 

sounds)

OFF (Buzzer  

does not 

sound )

Seatbelt buzzer 
output

Seatbelt buzzer 
output

Seatbelt buzzer 
output

ON

OFF

t1

t2: approximately 0.5 second

t1: approximately 0.2 second

t1

t1

t2

Seat occupancy 
sensor

ON (Seat
 occupied)

OFF (Seat not 
occupied)

60 seconds  or more

e: approximately 3 seconds

a: 6 seconds

c: 10 seconds

12 cycles

12 cycles

12 cycles

12 cycles

12 cycles

GENERAL INFORMATION

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-8

When the ignition switch is turned ON with the 
driver’s seat belt unbuckled, the ETACS-ECU 
triggers a warning buzzer (repetition of a short beep 
sound) for 6 seconds to notify the driver that the seat 
belt is not fastened.
When the ETACS-ECU detects that the vehicle 
speed signal sent from the combination meter 
through CAN communication exceeds 8 km/h and 
the driver’s seat belt buckle is not engaged, it will 
trigger a warning buzzer (repetition of 5-second ON 
and 2.8-second OFF for 12 cycles). The 
ETACS-ECU stops the buzzer when the driver’s seat 
belt buckle is engaged while the warning cycle is ON.

DOOR AJAR WARNING BUZZER 
FUNCTION <THE INITIAL CONDITION: 
WITH FUNCTION>

If the vehicle speed exceeds 8 km/h with the 
door-ajar, the buzzer sounds (pings eight times) to 
alert the driver that the door is not properly closed.
NOTE: Availability of the door-ajar alarm function 
can be selected by the customize function.

Turn-signal lamp buzzer function <the 
initial condition: Without function>

ETACS-ECU buzzer sounds simultaneously with the 
blinks of the turn signal lamp and the hazard lamp.

AC309677

ON

(Any one open) ON

OFF

(All closed) OFF

8 km/h 

0km/h 

Ignition switch

Door switch

Speed vehicle

Buzzer output

(Buzzer sounds)ON

(Buzzer does not sound) OFF

AB

AC309772

Turn signal 
  lamp switch

 

             (RH) OFF

ON

Turn signal 
  lamp

 (RH) OFF

ON

OFF

ON

Turn signal

lamp (LH)

Turn signal   

   lamp switch

(LH)

OFF

ON

Hazard lamp 

switch         

OFF

ON

Hazard lamp

OFF

ON

AB

ON (Buzzer 

sounds)

OFF (Buzzer 

does not sound)

Buzzer 
output