Mitsubishi Lancer Evolution IX. Manual — part 239

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-215

INSPECTION PROCEDURE I-3: Any of the turn-signal lamps does not illuminate. <LH drive vehicles>

CAUTION

Whenever the ECU is replaced, ensure that the

input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

If any of the turn-signal lamps does not illuminate
normally, wiring harness connector(s) or the bulb
may be defective.

POSSIBLE CAUSES

• Defective turn-signal lamp bulb

• Damaged harness wires and connectors

SIDE
TURN
SIGNAL
LAMP
(LH)

TURN-SIGNAL
LAMP RELAY: LH

HEADLAMP
ASSEMBLY
(LH)

HEADLAMP
ASSEMBLY
(RH)

REAR
COMBINATION
LAMP (RH)

REAR
COMBINATION
LAMP (LH)

SIDE TURN
SIGNAL LAMP
(RH)

COMBINATION
METER

J/B SIDE

ETACS-ECU

TURN-SIGNAL
LAMP RELAY: RH

Turn-Signal Lamps Circuit <LHD>

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

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-216

DIAGNOSTIC PROCEDURE

Step 1. Connector check: A-39 <front RH> or

A-31 <front LH> headlamp assembly connector,

A-01 <side RH> or A-02 <side LH> side

turn-signal lamp connector, F-08 <rear RH> or

F-14 <rear LH> rear combination lamp connector,

C-02 <turn-signal indicator lamp> and C-01

<turn-signal indicator lamp (LH)> combination

meter connector

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the defective connector.

Step 2. Check the bulb(s) of the turn-signal lamps
or the turn-signal indicator lamps.
Check the bulb(s) of the defective lamp.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Replace the bulb(s) of the defective lamp.

AC310432

Connectors: A-01, A-39
<LHD>

A-39

A-01 (GR)

Harness side

A-01

Harness side

A-39

AB

AC310543

Connectors: A-02, A-31
<LHD>

A-31

A-02 (GR)

Harness side

A-02

Harness side

A-31

AB

AC310468

Connectors: F-08, F-14
<LHD>

F-14

F-08

Harness side

F-08

Harness side

F-14

AC

AC310447

Connectors: C-01, C-02

AE

<LHD>

C-01
Harness side

C-02
Harness side

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C-01

C-02(L)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-217

Step 3. Resistance measurement at the A-39
<front RH> or A-31 <front LH> headlamp
assembly connector, the A-01 <side RH> or A-02
<side LH> side turn-signal lamp connector, the
F-08 <rear RH> or F-14 <rear LH> rear
combination lamp connector, the C-02
<turn-signal indicator lamp> combination meter
connector

(1) Disconnect the connector, and measure at the

wiring harness side.

AC310432

Connectors: A-01, A-39
<LHD>

A-39

A-01 (GR)

Harness side

A-01

Harness side

A-39

AB

AC310543

Connectors: A-02, A-31
<LHD>

A-31

A-02 (GR)

Harness side

A-02

Harness side

A-31

AB

AC310468

Connectors: F-08, F-14
<LHD>

F-14

F-08

Harness side

F-08

Harness side

F-14

AC

AC310446

Connector: C-02
<LHD>

AK

Harness side

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C-02 (L)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-218

(2) Measure the resistance between the defective

lamp connector terminal and body earth.

•

Resistance between A-39 <front RH> headlamp

assembly connector terminal No.7 and body
earth

• Resistance between A-31 <front LH> head-

lamp assembly connector terminal No.7 and
body earth

•

Resistance between A-01 <side RH> side

turn-signal lamp connector terminal No.1 and
body earth

• Resistance between A-02 <side LH> side

turn-signal lamp connector terminal No.1 and
body earth

•

Resistance between F-08 <rear RH> rear combi-

nation lamp connector terminal No.5 and
body earth

• Resistance between F-14 <rear LH> rear

combination lamp connector terminal No.5
and body earth

•

Resistance between C-02 <turn-signal indicator

lamp> combination meter terminal No.48 and
body earth

OK: 2

Ω or less

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 4.

AC301541HG

Connector A-31, A-39
(Harness side)

AC301541HH

Connector A-01, A-02
(Harness side)

AC301541HI

Connector F-08, F-14
(Harness side)

AC301541HE

Connector C-02
(Harness side)

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