Mitsubishi Grandis. Manual - part 186

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-206

Step 6. Connector check: A-40 earth connector.

Q: Is the check result normal?

YES : 

Go to Step 7.

NO : 

Repair the connector.

Step 7. Check the wiring harness between A-01 
windshield wiper motor connector terminal No.2 
and A-40 earth connector terminal No.5.

• 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.

AC310401

Connector: A-40 <LHD>

Harness side

AE

A-40 (GR)

AC310396

Connector: A-40 <RHD>

Harness side

AE

A-40 (GR)

AC310402

AC

Connectors: A-01, A-40

A-01 (GR)

A-01

Harness side

A-40 (GR)

A-40

Harness side

<LHD>

AC310397

AC

Connectors: A-01, A-40

A-01 (GR)

A-01

Harness side

A-40 (GR)

A-40

Harness side

<RHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-207

Step 8. Connector check: A-15X front-ECU 
connector.

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Repair the connector.

Step 9. Voltage measurement at the A-15X 
front-ECU connector.

(1) Remove the front-ECU, and measure at the relay 

box side.

(2) Ignition switch: ACC

(3) Check the voltage between the A-15X front-ECU 

connector terminal No.24 and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Go to Step 10.

AC311521AC

Connector: A-15X

Relay box side

21

22

23

24

25

26

27

28

29

30

31

AC311521AC

Connector: A-15X

Relay box side

21

22

23

24

25

26

27

28

29

30

31

AC301541IA

Connector A-15X
(Relay box side)

21

22

23

24

25

26

27

28

29

30

31

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-208

Step 10. Check the wiring harness between 
A-15X front-ECU connector terminal No.24 and 
the ignition switch (ACC).

NOTE: 

AC311521AC

Connector: A-15X

Relay box side

21

22

23

24

25

26

27

28

29

30

31

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-209

Prior to the wiring harness inspection, check the 
junction block connectors C-202, C-203 and 
intermediate connector C-125 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 11.

NO : 

Repair the wiring harness.

Step 11. Retest the system.

The windshield wiper should now work normally at 
all.

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.

AC310613

AD

Connector: C-125 <LHD>

AC310628AB

Connector: C-125 <RHD>

AC310624

Connectors: C-202, C-203

AS

Junction block (Front view)

C-202

Harness side

C-202

C-203

Harness side

C-203

10

1

6

14

5

12

13

4

11

7

2

3

8

9

<LHD>

AC310619

Connectors: C-202, C-203

AS

Junction block (Front view)

C-203

C-202

Harness side

C-202

Harness side

C-203

10

1

6

14

5

12

13

4

11

7

2

3

8

9

<RHD>