Mitsubishi Grandis. Manual - part 34

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-133

Step 15. Check the wiring harness between C-221 
ETACS-ECU connector terminal No.59 and F-05 
power window main switch connector terminal 
No.4.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connectors C-27 <LH drive vehicles>, 
C-14 <RH drive vehicles> and joint connector C-01, 
and repair if necessary.

• Check the communication lines for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 16.

NO : 

Repair the wiring harness.

AC310626

Connector: C-221

Junction block (Rear view)

<LHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC310620

Connector: C-221

Junction block 
(Rear view)

<RHD>

AC

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

Harness side

C-221(GR)

AC311150

AB

Connector: F-05

Harness side

<LHD>

10

1

6

14

5

12

13

4

11

7

2

3

8

9

F-05(B)

AC310213

Connector: F-05

Harness side

<RHD>

10

1

6

14

5

12

13

4

11

7

2

3

8

9

F-05(B)

AB

AC310614

Connector: C-01, C-27 <LHD>

C-27

AM

C-27

C-01

C-01

AC310632

Connector: C-01, C-14 <RHD>

C-14

AH

C-14

C-01

C-01

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-134

Step 16. Retest the system.

After the power window main switch is replaced, 
check that all the power windows work.
(1) Replace the power window main switch.
(2) Check that the all the power windows work.

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 ETACS-ECU.

Inspection Procedure D-2: Driver's power window does not work by means of the power window main 
switch. <LH drive vehicles>

Power Window (front: LH) Circuit <LHD>

FUSIBLE 
LINK

5

POWER 
WINDOW 
RELAY

ETACS-ECU

POWER 
WINDOW
MAIN SWITCH

POWER WINDOW
MOTOR 
(FRONT: LH)

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   

CPU

FRONT
 (LH)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-135

COMMENTS ON TROUBLE SYMPTOM

If the driver's power window does not work by means 
of the power window main switch, the power window 
main switch or the driver's door power window motor 
may be defective.

POSSIBLE CAUSES

• Malfunction of the power window main switch

• Malfunction of the power window motor (front: 

LH)

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the power window main switch.
Check that all of the front passenger's and rear door 
power windows can operate by means of the power 
window main switch.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Refer to Inspection Procedure D-1 "Power 
windows do not work at all 

P.54B-124

."

Step 2. Connector check: F-05 power window 
main switch connector and F-10 power window 
motor (front: LH) connector

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the connector.

Step 3. Check the wiring harness from F-10 
power window motor (front: LH) connector 
terminal Nos.1 and 3 to F-05 power window main 
switch connector terminal Nos. 7 and 1.

• Check the input and output lines for open or short 

circuit.

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the wiring harness.

Step 4. Retest the system.
After the power window main switch is replaced, 
check that the driver's door power window can be 
operated by the power window main switch.
(1) Replace the power window main switch.
(2) Check that the driver's power window works by 

means of the power window main switch.

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 power window motor (front: 
LH).

AC311151

AC311151

AB

Connectors: F-05, F-10

Harness side

<LHD>

10

1

6

14

5

12

13

4

11

7

2

3

8

9

F-05

F-10

Harness side

F-05(B)

F-10(B)

AC311151

AC311151

AB

Connectors: F-05, F-10

Harness side

<LHD>

10

1

6

14

5

12

13

4

11

7

2

3

8

9

F-05

F-10

Harness side

F-05(B)

F-10(B)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-136

Inspection Procedure D-2: Driver's power window does not work by means of the power window main 
switch. <RH drive vehicles>

COMMENTS ON TROUBLE SYMPTOM

If the driver's power window does not work by means 
of the power window main switch, the power window 
main switch or the driver's door power window motor 
may be defective.

POSSIBLE CAUSES

• Malfunction of the power window main switch

• Malfunction of the front power window motor 

(front: RH)

• Damaged harness wires and connectors

Power Window (front: RH) Circuit <RHD>

FUSIBLE 
LINK

5

POWER 
WINDOW 
RELAY

ETACS-ECU

POWER 
WINDOW
MAIN SWITCH

POWER WINDOW
MOTOR 
(FRONT: 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   

CPU

FRONT
 (RH)