Mitsubishi Lancer Evolution IX. Manual - part 144

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-139

INSPECTION PROCEDURE F-3: The windshield wipers do not stop at the specified park position

CAUTION

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

COMMENTS ON TROUBLE SYMPTOM

The windshield wiper motor or the front-ECU may be 
defective.

POSSIBLE CAUSES

• Malfunction of the windshield wiper motor

• Malfunction of the front-ECU

• Damaged harness wires and connectors

IGNITION
SWITCH (ACC)

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   

FRONT-ECU

WINDSHIELD 
WIPER MOTOR

WIPER 
AUTOMATIC 
STOP RELAY

Windshield Wiper Automatic Stop Relay Circuit

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-140

DIAGNOSTIC PROCEDURE

Step 1. Connector check: B-01 windshield wiper 
motor connector

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Repair the connector.

Step 2. Check the windshield wiper motor 
assembly.
Refer to GROUP 51 

− Windshield wiper 

P.51-21

.

Q: Is the check result normal?

YES : 

Go to Step 3

NO : 

Replace the windshield wiper motor 
assembly.

Step 3. Voltage measurement at the B-01 
windshield wiper motor connector

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Ignition switch: ACC

(3) Check the voltage between the B-01 windshield 

wiper motor connector terminal No.4 and body 
earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 4.

AC310437

Connector: B-01 <LHD>

AB

Harness side

B-01 (GR)

AC310477

Connector: B-01 <RHD>

AD

Harness side

B-01 (GR)

AC310437

Connector: B-01 <LHD>

AB

Harness side

B-01 (GR)

AC310477

Connector: B-01 <RHD>

AD

Harness side

B-01 (GR)

4

1

2

5

3

AC304770

Connector B-01
(Harness side)

AB

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-141

Step 4. Check the wiring harness between B-01 
windshield wiper motor connector terminal No.4 
and ignition switch (ACC).

NOTE: 

Prior to the wiring harness inspection, check the 
junction connectors C-210, C-211 and the intermedi-
ate connector C-123 and repair if necessary.

• Check the power supply line to ignition switch 

(ACC) 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.

AC310437

Connector: B-01 <LHD>

AB

Harness side

B-01 (GR)

AC310477

Connector: B-01 <RHD>

AD

Harness side

B-01 (GR)

AC310446

Connector: C-123 <LHD>

AT

C-123 (GR)

AC310454

Connector: C-123 <RHD>

AX

C-123 (GR)

AC310449

Connectors: C-210, C-211 <LHD>

AF

C-210

C-211

Junction block (front view)

C-210

Harness side

10

1

6

14

5

12

13

4

11

7

2

3

8

9

C-211

Harness side

4

6 5

3

2

1

AC310459

Connectors: C-210, C-211 <RHD>

AF

C-210

C-211

Junction block (front view)

C-210

Harness side

10

1

6

14

5

12

13

4

11

7

2

3

8

9

C-211

Harness side

4

6 5

3

2

1

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-142

Step 5. Connector check: A-11X front-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the connector.

Step 6. Check the wiring harness between B-01 
windshield wiper motor connector terminal No.3 
and A-11X front-ECU connector terminal No.23.

AC310572AC

Connector: A-11X

Relay box side

Battery

29

31 30

28 27

25

26

24

21

22

23

AC310437

Connector: B-01 <LHD>

AB

Harness side

B-01 (GR)

AC310477

Connector: B-01 <RHD>

AD

Harness side

B-01 (GR)

AC310572AC

Connector: A-11X

Relay box side

Battery

29

31 30

28 27

25

26

24

21

22

23