Mitsubishi Lancer Evolution IX. Manual - part 118

TROUBLE SYMPTOM CHART

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-35

Headlamp and tail lamp

The tail lamps do not illuminate normally.

H-1

P.54B-160

The low-beam headlamps do not illuminate 
normally.

H-2

P.54B-162

The high-beam headlamps do not 
illuminate normally.

H-3

P.54B-164

The high-beam and low-beam headlamps 
do not illuminate when the passing switch 
is operated.

H-4

P.54B-165

The headlamp automatic shutdown 
function does not work normally.

H-5

P.54B-166

Any of tail lamps, position lamps or licence 
plate lamps does not illuminate. <LH drive 
vehicles>

H-6

P.54B-168

Any of tail lamps, position lamps or licence 
plate lamps does not illuminate. <RH drive 
vehicles>

P.54B-175

The headlamp(s) do not illuminate. 
<including high-beam indicator>

H-7

P.54B-182

Flasher timer

The turn-signal lamps do not illuminate.

I-1

P.54B-191

The hazard warning lamps do not 
illuminate.

I-2

P.54B-196

Any of the turn-signal lamps does not 
illuminate. <LH drive vehicles>

I-3

P.54B-198

Any of the turn-signal lamps does not 
illuminate. <RH drive vehicles>

P.54B-205

Fog lamp

The rear fog lamp do not illuminate 
normally.

J-1

P.54B-212

The rear fog lamp or the rear fog lamp 
indicator does not illuminate normally.

J-2

P.54B-218

Room lamp

The front, rear room lamp and/or luggage 
compartment lamp do not illuminate or 
extinguish normally. 

K-1

P.54B-225

Interior lamp automatic shutdown function 
does not work normally. 

K-2

P.54B-233

The door-ajar warning lamp does not 
illuminate/extinguish normally.

K-3

P.54B-235

Symptom

Inspection 
procedure 
number

Reference 
page

CHECK TROUBLE BY USING THE INPUT SIGNAL CHECK

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-36

CHECK TROUBLE BY USING THE INPUT SIGNAL CHECK

M1549024200318

<PULSE CHECK>

If a problem is found in the Service Data inspection, observe the table below.

Symptom

Inspection 
procedure 
number

Reference 
page

The ignition switch (ACC) signal is not received.

L-1

P.54B-239

The ignition switch (IG1) signal is not received.

L-2

P.54B-242

The door switch (front: LH) signal is not received. <LH drive vehicles>

L-3

P.54B-244

The door switch (front: RH) signal is not received. <RH drive vehicles>

P.54B-246

Column switch (lighting and 
turn-signal lamp switch)

The tail lamp switch signal is not 
received.

L-4

P.54B-248

The headlamp switch signal is not 
received.
The dimmer switch signal is not 
received.
The passing switch signal is not 
received.
The turn-signal lamp switch (LH) 
signal is not received.
The turn-signal lamp switch (RH) 
signal is not received.

Column switch (windshield 
wiper/washer switch)

The windshield mist wiper switch 
signal is not received.

L-5

P.54B-249

The windshield intermittent wiper 
switch signal is not received.
The windshield low-speed wiper 
switch signal is not received.
The windshield high-speed wiper 
switch signal is not received.
The windshield washer switch signal 
is not received.
The windshield intermittent wiper 
volume signal is not received.

L-6

P.54B-250

Power window main switch

When the power window main switch 
is operated, the switch signals are 
not received.

L-7

P.54B-254

The key reminder switch signal is not received.

L-8

P.54B-257

The hazard warning lamp switch signal is not received.

L-9

P.54B-261

All the door switch signals are not 
received.

LH drive vehicles

L-10

P.54B-265

RH drive vehicles

P.54B-268

OPERATION AND FUNCTION QUICK-REFERENCE TABLE FOR INPUT SIGNAL INSPECTION PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-37

OPERATION AND FUNCTION QUICK-REFERENCE TABLE 

FOR INPUT SIGNAL INSPECTION PROCEDURES

M1549020300313

If troubles have occurred in the functions which use the SWS simultaneously, observe the table below to 
check input signals.
(This table shows only the input signals which will cause troubles in at least two functions simultaneously).

The front door lock actuator (LH) switch signal is not received. <LH drive 
vehicles>

L-11

P.54B-272

The front door lock actuator (RH) switch signal is not received. <RH drive 
vehicles>

P.54B-275

The vehicle speed sensor signal is not received.

L-12

P.54B-278

Each switch signal of the keyless entry transmitter is not received.

L-13

P.54B-282

The rear fog lamp switch signal is not received.

L-14

P.54B-283

The interior lamp loaded signal is not received.

L-15

P.54B-287

The door lock key cylinder switch signal is not received.

L-16

P.54B-292

Symptom

Inspection 
procedure 
number

Reference 
page

Function

L-1

L-2

L-3

L-4

L-8

L-10

L-11

L-15

Lamp reminder function

−

×

×

×

−

−

−

−

Control of central door 
locking

−

−

−

−

−

−

×

−

Key reminder function

−

−

×

−

×

−

×

−

Door locking released due to 
impact detection

−

−

−

−

−

−

−

−

Keyless entry system

−

−

×

−

×

×

×

−

Keyless entry hazard 
warning lamp answerback

−

−

−

−

−

−

−

−

Power window control

−

×

−

−

−

−

−

−

Control of windshield 
wiper/washer

×

−

−

−

−

−

−

−

Ignition key cylinder 
illumination lamp function

−

×

×

−

×

−

−

×

Headlamp control

−

×

−

×

−

−

−

−

Tail lamp control

−

×

−

×

−

−

−

−

Headlamp automatic 
shutdown function

−

×

×

×

−

−

−

−

Fog lamp control

−

−

−

×

−

−

−

−

Turn-signal lamp control

−

×

−

×

−

−

−

−

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-38

SYMPTOM PROCEDURES

INSPECTION PROCEDURE A-1: Communication with the M.U.T.-II/III is not possible.

CAUTION

Whenever the ECU is replaced, ensure that the 
power supply circuit, the earthing circuit and the 
communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM

It is suspected that the power supply circuit to the 
ETACS-ECU is defective, or the wiring harness 
between the diagnosis connector and the 
ETACS-ECU or their connector(s) is damaged.

NOTE: If the wiring harness between the 
ETACS-ECU and body earth is defective, also check 
C-225 ETACS-ECU connector terminal No.3, and 
repair if necessary.

Room lamp control

−

×

×

−

×

×

×

×

Interior lamp automatic 
shutdown function

×

−

−

−

−

−

−

×

Door-ajar indicator lamp

−

−

×

−

−

×

−

−

Function

L-1

L-2

L-3

L-4

L-8

L-10

L-11

L-15

ETACS-
ECU

DIAGNOSIS
CONNECTOR

LHD

RHD

FRONT SIDE

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue
W : White     Y : Yellow     SB : Sky blue     BR : Brown
O : Orange     GR : Gray     R : Red     P : Pink     V : Violet

J/B SIDE

MUT-II/III Communication Circuit and ETACS-ECU Ground Circuit