Mitsubishi Lancer Evolution IX. Manual - part 159

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-199

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.

AC310447

Connectors: C-01, C-02

AE

<LHD>

C-01
Harness side

C-02 
Harness side

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

C-01

C-02(L)

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

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-200

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

31

35

36

37

38

39

40

41

45

46

47

48

49

50

51

34

44

33

43

32

42

C-02 (L)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-201

(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)

31

35

36

37

38

39

40

41

45

46

47

48

49

50

51

34

44

33

43

32

42

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-202

Step 4. Check the wiring harness from A-39 

<front RH> or A-31 <front LH> headlamp 

assembly connector terminal No.7, A-01 <side 

RH> or A-02 <side LH> side turn-signal lamp 

connector terminal No.1, F-08 <rear RH> or F-14 

<rear LH> rear combination lamp connector 

terminal No.5, or C-02 <turn-signal indicator 

lamp> combination meter connector terminal 

No.48 to body earth.

• Check the earth wires for open circuit.

Q: Is the check result normal?

YES : 

The trouble can be an intermittent 

malfunction (Refer to GROUP 00 

− How to 

Cope with Intermittent Malfunction 

P.00-5

).

NO : 

Repair the wiring harness.

Step 5. Connector check: C-226 ETACS-ECU 

connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

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

31

35

36

37

38

39

40

41

45

46

47

48

49

50

51

34

44

33

43

32

42

C-02 (L)

AC310450

Connector: C-226

AB

Junction block side

Junction block (rear view)

<LHD>