Mitsubishi Grandis. Manual - part 40

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-157

Inspection Procedure D-4: Passenger's and/or rear power window(s) do not work by means of the 
power window main switch.

Power Window Circuit <LHD>

FRONT
 (RH)

REAR
 (RH)

REAR
 (LH)

POWER WINDOW 
MAIN SWITCH

LOCK
SWITCH

POWER WINDOW 
SUB SWITCH
(FRONT: RH)

POWER WINDOW 
SUB SWITCH
(REAR: LH)

POWER WINDOW 
SUB SWITCH
(REAR: 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

CPU

CPU

CPU

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-158

COMMENTS ON TROUBLE SYMPTOM

If the passenger's and/or rear power window does 
not work by means of the power window main switch, 
the power window main switch or the respective 
power window sub switch(es) may be defective.

POSSIBLE CAUSES <LH DRIVE 
VEHICLES>

• Malfunction of the power window main switch

• Malfunction of the power window sub switch 

(front: RH), power window sub switch (rear: RH) 
or power window sub switch (rear: LH)

• Damaged harness wires and connectors

Power Window Circuit <RHD>

FRONT
 (LH)

REAR
 (RH)

REAR
 (LH)

POWER WINDOW 
MAIN SWITCH

LOCK
SWITCH

POWER WINDOW 
SUB SWITCH
(FRONT: LH)

POWER WINDOW 
SUB SWITCH
(REAR: LH)

POWER WINDOW 
SUB SWITCH
(REAR: 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

CPU

CPU

CPU

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-159

POSSIBLE CAUSES <RH DRIVE 
VEHICLES>

• Malfunction of the power window main switch

• Malfunction of the power window sub switch 

(front: LH), power window sub switch (rear: RH) 
or power window sub switch (rear: LH)

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the power window main switch.
Check that the driver's power window works 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-2 "Driver's 
power window does not work by means of 
the power window main switch 

P.54B-134

 

<LH drive vehicles> or 

P.54B-136

 <RH 

drive vehicles>."

Step 2. Check the power window sub switch.
Check that each power window works by means of 
the respective power window sub switch when the 
power window lock switch is turned off.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Refer to inspection procedure D-3 "Relevant 
power window(s) do not work by means of 
the front and rear passenger's power 
window sub switches 

P.54B-138

."

Step 3. Determine a trouble spot.

Q: Which power window does not work when the 

power window main switch is operated?

Front passenger's door <LH drive vehicles> : 

Go 

to Step 4.

Front passenger's door <RH drive vehicles> : 

Go 

to Step 7.

Rear right door : 

Go to Step 10.

Rear left door : 

Go to Step 13.

Step 4. Connector check: F-05 power window 
main switch connector and F-15 power window 
sub switch (front: RH) connector

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Repair the connector.

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)

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-160

Step 5. Check the wiring harness between F-05 
power window main switch connector terminal 
No.11 and F-15 power window sub switch (front: 
RH) connector terminal No.6.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connectors C-14, C-27 and repair if 
necessary.

• Check the communication lines for open circuit.

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Repair the wiring harness.

Step 6. Retest the system.

After the power window sub switch (front: RH) is 
replaced, check that the front passenger's door 
power window can be operated by the power window 
sub switch.
(1) Replace the power window sub switch (front: 

RH).

(2) Check that the front passenger'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 main switch.

Step 7. Connector check: F-05 power window 
main switch connector and F-26 power window 
sub switch (front: LH) connector

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the connector.

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)

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

AC310615

AB

Connector: C-14 <LHD>

AC310613

Connector: C-27 <LHD>

AJ

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

AC310211

AB

Connector: F-26

Harness side

<RHD>

F-26(B)