Mitsubishi Lancer Evolution IX. Manual - part 148

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-155

Step 8. Check the wiring harness between F-18 
windshield washer motor connector terminal 
No.2 and A-11X front-ECU connector terminal 
No.21.

NOTE: 

Prior to the wiring harness inspection, check the 
intermediate connector C-129, C-113 and repair if 
necessary.

• Check the power supply line to the ignition switch 

(ACC) for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the wiring harness.

AC310572AC

Connector: A-11X

Relay box side

Battery

29

31 30

28 27

25

26

24

21

22

23

AC310467AF

Harness side

Connector: F-18 <LHD>

AC310469

AF

Harness side

Connector: F-18 <RHD>

AC310452

Connector: C-113 <LHD>

AO

AC310456

Connector: C-113 <RHD>

AN

AC310446

Connector: C-129 <LHD>

AS

AC310454

Connector: C-129 <RHD>

AV

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-156

Step 9. Retest the system.
The windshield washer should now work 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.

IGNITION KEY CYLINDER ILLUMINATION LAMP

INSPECTION PROCEDURE G-1: The ignition key cylinder illumination lamp does not 
illuminate/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

• Driver's door switch

• Interior lamp loaded signal

If this function does not work normally, these input 
signal circuit(s), the ignition key cylinder illumination 
lamp or the ETACS-ECU may be defective.

POSSIBLE CAUSES

• Malfunction of the key reminder switch

• Malfunction of the driver's door switch

• Malfunction of the ignition key cylinder illumina-

tion lamp

• Malfunction of the ETACS-ECU

• Damaged harness wires and connectors

ETACS-ECU

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

IGNITION KEY
CYLINDER ILLUMINATION
LAMP

KEY
REMINDER SWITCH

Ignition Key Cylinder Illumination Lamp Circuit

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-157

DIAGNOSTIC PROCEDURE

Step 1. Check the operation of the room lamp.
Check that the room lamps illuminate and extinguish 
normally.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to inspection procedure K-1 "The 
front, rear room lamp and/or luggage 
compartment lamp do not illuminate or 
extinguish normally 

P.54B-225

."

Step 2. Pulse check
Check the input signals below, which are related to 
the ignition key cylinder illumination lamp.

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 

3.

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 key reminder switch signal is not received. : 

Refer to inspection procedure L-8 "The key 
reminder switch signal is not received 

P.54B-257

."

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

 ." Or refer to 

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

P.54B-246

 ."

Step 3. Connector check: C-207 key reminder 
switch connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the defective connector.

Step 4. Check the bulb of the ignition key 
cylinder illumination lamp.
Check the bulb of the ignition key cylinder illumina-
tion lamp.

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Replace the bulb of the ignition key cylinder 
illumination lamp.

System switch

Check condition

Ignition switch (IG1)

When turned from ACC 
to ON

Key reminder switch

When the inserted 
ignition key is pulled out

Driver's door switch

When the driver's door is 
opened

AC310479

2
7 6

1
3

5 4

Connector: C-207 <LHD>

AE

Harness side

AC310481

2
7 6

1
3

5 4

Connector: C-207 <RHD>

AE

Harness side

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-158

Step 5. Connector check: C-228 ETACS-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the defective connector.

Step 6. Check the wiring harness from C-228 
ETACS-ECU connector terminal Nos.69 and 71 to 
C-207 ignition key cylinder illumination lamp 
connector terminal Nos.1 and 2.

AC310450

Connector: C-228 <LHD>

AC

Junction block (rear view)

C-228 (GR)

Harness side

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

AC310461

Junction block (rear view)

Connector: C-228 <RHD>

AC

Harness side

C-228 (GR)

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

AC310479

2
7 6

1
3

5 4

Connector: C-207 <LHD>

AE

Harness side

AC310481

2
7 6

1
3

5 4

Connector: C-207 <RHD>

AE

Harness side

AC310450

Connector: C-228 <LHD>

AC

Junction block (rear view)

C-228 (GR)

Harness side

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

AC310461

Junction block (rear view)

Connector: C-228 <RHD>

AC

Harness side

C-228 (GR)

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74