Mitsubishi Lancer Evolution IX. Manual — part 165

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-223

Step 6. Check the wiring harness from F-14 <LH
drive vehicles>, F-08 <RH drive vehicles> rear
fog lamp connector terminal No.4, C-01 <rear fog
lamp indicator lamp> combination meter
connector terminal No.21 to C-219 rear fog lamp
relay connector terminal No.1.

AC310467

Harness side

AC

<LHD>

Connector: F-14

AC310469

Connector: F-08

Harness side

AC

<RHD>

AC310446

Connector: C-02
<LHD>

AK

Harness side

31

35

36

37

38

39

40

41

45

46

47

48

49

50

51

34

44

33

43

32

42

C-02 (L)

AC310456

Connector: C-02
<RHD>

AK

Harness side

31

35

36

37

38

39

40

41

45

46

47

48

49

50

51

34

44

33

43

32

42

C-02 (L)

AC310448

Junction block (front view)

Connector: C-219

AN

<LHD>

Junction block side

3

1

2
4

AC310458

Junction block (front view)

Connector: C-219

AK

<RHD>

Junction block side

3

1

2
4

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-224

NOTE:

Prior to the wiring harness inspection, check interme-
diate connector C-127 <LH drive vehicles - rear fog
lamp>, C-112 <RH drive vehicles - rear fog lamp>
and junction block connector C-209, and repair if
necessary.

• Check the output lines for open circuit.

Q: Is the check result normal?

YES :

Go to Step 7.

NO :

Repair the wiring harness.

Step 7. Retest the system.
Check that the rear fog lamp and the rear fog lamp
indicator lamp illuminate normally.

Q: Is the check result normal?

The lamps illuminate normally at both high and low
beams. :

The trouble can be an intermittent

malfunction (Refer to GROUP 00

− How to

Cope with Intermittent Malfunction

P.00-5

).

The rear fog lamps do not illuminate. :

Replace the

rear fog lamp(s).

The rear fog lamp indicator lamp does not
illuminate. :

Replace the combination meter.

AC310446

Connector: C-127
<LHD>

AN

C-112(GR)

AC310456

Connector: C-112
<RHD>

AM

C-112(GR)

AC310448

Harness side

Junction block (front view)

Connector: C-209

AO

<LHD>

AC310458

Harness side

Junction block (front view)

Connector: C-209

AL

<RHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-225

INTERIOR LAMP

INSPECTION PROCEDURE K-1: The front, rear room lamp and/or luggage compartment lamp do not

illuminate or extinguish normally.

CAUTION

Whenever the ECU is replaced, ensure that the
input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

The ETACS-ECU operates this function in accord-
ance with the input signals below.

• Ignition switch (IG1)

• Key reminder switch

• All of the door switches

• Driver's door lock actuator

• Interior lamp loaded signal

If this function does not work normally, these input
signal circuit(s), the interior lamp automatic shut-
down function or the ETACS-ECU may be defective.
The delay-off setting of this function can be changed
by the adjustment function (default setting; 15 sec-
onds).

POSSIBLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of the door switches

• Malfunction of the driver's door lock actuator

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

J/B SIDE

ETACS-ECU

REAR
ROOM
LAMP

FRONT
ROOM
LAMP

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

LUGGAGE
COMPARTMENT
LAMP SWITCH

LUGGAGE
COMPARTMENT
LAMP

Room Lamp Circuit

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-226

DIAGNOSTIC PROCEDURE

Step 1. Check the adjustment function.
Check that the room lamp delay-off time has been
set to other than "0 second" by the adjustment func-
tion.

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Use the adjustment function to set the room
lamp delay-off time to other than "0 second."
Refer to

P.54B-302

.

Step 2. Check the power supply circuit.
When the ignition switch is turned to the LOCK
(OFF) position, check if the hazard warning lamps
illuminate.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Refer to inspection procedure A-2 "Check
the battery power supply circuit to the
ETACS-ECU

P.54B-42

."

Step 3. Pulse check
Check the input signals below, which are related to
the front and rear room lamps.

OK: The M.U.T.-II/III sounds or the voltmeter
needle fluctuates.

Q: Is the check result normal?

All the signals are received normally. :

Go to Step

4.

The ignition switch (IG1) signal is not received. :

Refer to inspection procedure L-2 "The
ignition switch (IG1) signal is not received

P.54B-242

."

All the door switch signals are not received. :

Refer to inspection procedure L-10 "All the
door switch signals are not received <LH
drive vehicles>

P.54B-265

." Refer to

inspection procedure L-10 "All the door
switch signals are not received <RH drive
vehicles>

P.54B-268

."

The driver's door lock actuator switch signal is not
received. :

Refer to inspection procedure L-11

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

P.54B-272

." Refer to inspection

procedure L-11 "The front door lock actuator
(RH) switch signal is not received <RH drive
vehicles>

P.54B-275

."

Interior lamp loaded signal is not detected. :

Refer

to inspection procedure L-15 "Interior lamp
loaded signal is not detected

P.54B-287

."

Step 4. Determine a trouble spot.

Q: Which lamp does not illuminate?

No lamp illuminates. :

Replace the ETACS-ECU.

The front room lamp or the rear room lamp does
not illuminate. :

Go to Step 5.

The luggage compartment lamp does not
illuminate. :

Go to Step 10.

System switch

Check condition

Ignition switch (IG1)

When turned from ACC
to ON

All of the door switches

A door is opened when
all the doors are closed

Driver's door lock
actuator switch

When the driver's door is
unlocked or locked

Interior lamp loaded
signal

When a load is applied
through multi-purpose
fuse No.18