Mitsubishi Lancer Evolution IX. Manual — part 151

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-167

Step 3. Pulse check
Check the input signals below, which are related to
the headlamp automatic shutdown function.

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

."

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

Refer to inspection procedure L-3 "The door
switch (front: LH) signal is not received <LH
drive vehicles>

P.54B-244

." Refer to

inspection procedure L-3 "The door switch
(front: RH) signal is not received <RH drive
vehicles>

P.54B-246

."

The tail lamp switch signal is not received. :

Refer

to inspection procedure L-4 "The column
switch (lighting and turn-signal lamp switch)
signal is not received

P.54B-248

."

Step 4. Retest the system.
Replace the ETACS-ECU, and then check that the
headlamp automatic shutdown function works nor-
mally.
(1) Replace the ETACS-ECU.
(2) Check that the headlamp automatic shutdown

function works normally.

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 :

Replace the front-ECU.

System switch

Check condition

Ignition switch (IG1)

When turned from ACC
to ON

Driver's door switch

When the driver's door is
opened

Tail lamp switch

When the lighting switch
is turned to the TAIL
position

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-168

INSPECTION PROCEDURE H-6: Any of tail lamps, position lamps or licence plate lamps does not

illuminate. <LH drive vehicles>

CAUTION

Whenever the ECU is replaced, ensure that the input

and output signal circuits are normal.

FRONT-ECU

COMBINATION METER

LICENCE
PLATE
LAMP

(LH)

(RH)

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

TAIL LAMP
RELAY

REAR
COMBINATION
LAMP
(TAIL: LH)

HEADLAMP
ASSEMBLY
(POSITION)

(LH)

(RH)

REAR
COMBINATION
LAMP
(TAIL: RH)

Taillamps, Position Lamps and License Plate Lamps Circuit <LHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-169

COMMENTS ON TROUBLE SYMPTOM

If the tail lamps, the position lamps or the licence
plate lamps do not illuminate, the wiring harness con-
nector(s), the bulb or the fuse may be defective or
burned out.

POSSIBLE CAUSES

• Burned-out bulb

• Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE

Step 1. Connector check: F-14 <tail lamp LH> or
F-08 <tail lamp RH> rear combination lamp
connector, A-31 <position lamp LH> or A-39
<position lamp RH> headlamp assembly
connector, F-11 <licence plate lamp LH> or F-10
<licence plate lamp RH> licence plate lamp
connector, C-02 <tail lamp indicator>
combination meter connector

Q: Is the check result normal?

YES :

Go to Step 2.

NO :

Repair the defective connector.

Step 2. Check the bulbs of the tail lamps, the
position lamp, the licence plate lamp or tail lamp
indicator.
Check the bulb of the lamp which does not illumi-
nate.

Q: Is the check result normal?

YES :

Go to Step 3.

NO :

Replace the bulb of the lamp which does not
illuminate.

AC310468

Connectors: F-08, F-10, F-11, F-14

<LHD>

AD

F-08(B)

F-10(GR)

F-11(GR)

F-14(B)

Harness side

F-08

Harness side

F-11

Harness side

F-10

Harness side

F-14

AC310542

Connectors: A-31

AD

A-31(B)

Harness side

A-31

<LHD>

AC310431

Connectors: A-39

AE

A-39(B)

Harness side

A-39

<LHD>

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-170

Step 3. Resistance measurement at the F-14 <tail
lamp LH> or F-08 <tail lamp RH> rear
combination lamp connector, the A-31 <position
lamp LH> or A-39 <position lamp RH> headlamp
assembly connector, the F-11 <licence plate lamp
LH> or F-10 <licence plate lamp RH> licence
plate lamp connector or C-02 <tail lamp
indicator> combination meter connector

(1) Disconnect the connector, and measure at the

wiring harness side.

(2) Check the resistance between the lamp

connector and body earth.

•

Resistance between A-31 <position lamp LH>

headlamp assembly connector terminal No.7
and body earth

• Resistance between A-39 <position lamp

RH> headlamp assembly connector terminal
No.7 and body earth

•

Resistance between F-14 <tail lamp LH> rear

combination lamp connector terminal No.5
and body earth

• Resistance between F-08 <tail lamp RH> rear

combination lamp connector terminal No.5
and body earth

AC310468

Connectors: F-08, F-10, F-11, F-14

<LHD>

AD

F-08(B)

F-10(GR)

F-11(GR)

F-14(B)

Harness side

F-08

Harness side

F-11

Harness side

F-10

Harness side

F-14

AC310542

Connectors: A-31

AD

A-31(B)

Harness side

A-31

<LHD>

AC310431

Connectors: A-39

AE

A-39(B)

Harness side

A-39

<LHD>

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)

AC301541HP

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

AC301541HN

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