Mitsubishi Outlander GS45X. Manual - part 1159

GENERAL INFORMATION

TSB Revision

WIRELESS CONTROL MODULE (WCM)

42C-3

CONSTRUCTION DIAGRAM

.

AC901470

LOW
  TIRE PRESSURE

AB

Wireless control module (WCM)

Engine control module (ECM)

Indicator light

ABS or ASC-ECU

Multi-information display 
(built in combination meter)

TPMS 
warning light

TPMS transmitter 
(Tire pressure sensor)

Lock button

Unlock 
button

Ignition key

ETACS-ECU

TPMS transmitter 
(Tire pressure sensor)

Panic 
button

<Vehicles without color liquid crystal display>

<Vehicles with color liquid crystal display>

TPMS 
warning light

Multi-information display 
(built in combination meter)

LOW  TIRE PRESSURE

GENERAL INFORMATION

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WIRELESS CONTROL MODULE (WCM)

42C-4

Main components and functions

NOTE: 

.

•

*

: Illuminates for tire pressure warning.

•

*

: Flashes for about 1 minute and then continuously illuminated for TPMS malfunction warning.

.

Parts name

Functional description

Wireless control module 
(WCM)

Controls the keyless entry functions, TPMS functions and starting of the engine 
by using the following communications.

• Communications with ETACS-ECU, ECM, ABS or ASC-ECU and 

combination meter via CAN

• Wire communication with the steering lock unit

• Wireless communication with the ignition key

• Wireless communication with the TPMS transmitter

Ignition key

The ignition key receives signals sent from WCM, certifies the key ID, 
calculates the key ID, and sends the reply data signal to WCM. The ignition key 
also sends signals to WCM when the lock/unlock button and panic button on it 
are operated.

Combination meter (Multi 
information display, TPMS 
warning light)

Communicates with WCM via CAN. Send ignition switch status. Receives the 
warning request or warning information from WCM, activates

*

 the TPMS 

warning light. Warning symbol and message is additionally displayed on the 
Multi information display.

ETACS-ECU

Communicates with WCM via CAN. Receives the door lock/unlock request from 
WCM, outputs the lock/unlock signal and flashes the turn signal light to inform 
the driver that the doors are locked/unlocked.

ABS or ASC-ECU

Communicates with WCM via CAN. Sends the vehicle speed data.

Engine control module 
(ECM)

Communication with WCM via CAN. Send atmospheric pressure data.

TPMS transmitter

Measure tire pressure directly, then send radio frequency signal to WCM.

GENERAL INFORMATION

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WIRELESS CONTROL MODULE (WCM)

42C-5

System configuration

NOTE: In case of replacement of WCM, all keyless 
ID, key ID and tire pressure sensor ID should be 
re-registered using scan tool MB991958 (M.U.T.-III 
sub-assembly).

AC702299

Wireless control module
(WCM)

ECM

Indicator light

CAN-C comm-
unication

Rear tire (LH)

Rear tire (RH)

CPU

Antenna

ABS or ASC-ECU

Ignition key

Panic button

Lock button

Unlock button

Radio 
frequency 
signal

TPMS transmitter

Transmission circuit

Radio 
frequency 
signal

Horn

Door lock actuator

Liftgate lock actuator

Front tire (LH)

Front tire (RH)

Dome light, 
Ignition key cylinder 
illumination light

Turn-signal light

Combination meter 
(TPMS warning light and 
Multi information display)

CAN-B 
communi-
cation

ETACS-ECU

Pressure 

sensor

Acc. 

sensor

Battery

Head light,
Tail light

AH

SPECIAL TOOLS

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WIRELESS CONTROL MODULE (WCM)

42C-6

SPECIAL TOOLS

M1427501300024

Tool

Tool number and 
name

Supersession

Application

MB991958

a. MB991824
b. MB991827
c. MB991910
d. MB991911
e. MB991914
f. MB991825
g. MB991826

M.U.T.-III sub 
assembly

a. Vehicle 

communication 
interface (V.C.I.)

b. M.U.T.-III USB 

cable

c. M.U.T.-III main 

harness A 
(Vehicles with 
CAN 
communication 
system)

d. M.U.T.-III main 

harness B 
(Vehicles without 
CAN 
communication 
system)

e. M.U.T.-III main 

harness C (for 
Chrysler models 
only)

f. M.U.T.-III 

measurement 
adapter

g. M.U.T.-III trigger 

harness

MB991824-KIT
NOTE: G: MB991826 
M.U.T.-III Trigger 
Harness is not 
necessary when 
pushing V.C.I. ENTER 
key.

CAUTION

M.U.T.-III main harness A 
(MB991910) should be used. 
M.U.T.-III main harness B and C 
should not be used for this 
vehicle.
ETACS-ECU check (Diagnostic 
trouble code, service data)

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

DO NOT USE

a

b

c

d

e

f

g

DO NOT USE