Mitsubishi Grandis. Manual - part 169

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-138

Power Window (front: LH) Circuit <RHD>

FUSIBLE 
LINK

5

POWER 
WINDOW 
RELAY

CPU

POWER 
WINDOW
SUB SWITCH

POWER WINDOW
MOTOR

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   

ETACS-
ECU

(FRONT: LH)

(FRONT: LH)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-139

COMMENTS ON TROUBLE SYMPTOM

If the front passenger's or rear power window does 
not work by means of the respective power window 
sub switch, the power window sub switch or the 
power window motor may be defective.

POSSIBLE CAUSES <LH DRIVE 
VEHICLES>

• Malfunction of the power window sub switch 

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

• Malfunction of the power window motor (front: 

RH), the power window motor (rear: RH) or the 
power window motor (rear: LH)

• Damaged harness wires and connectors

POSSIBLE CAUSES <RH DRIVE 
VEHICLES>

• Malfunction of the power window sub switch 

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

FUSIBLE 
LINK

5

POWER
WINDOW
RELAY

ETACS-ECU

POWER 
WINDOW
SUB SWITCH
(REAR: LH)

POWER 
WINDOW
MOTOR
(REAR: LH)

POWER 
WINDOW
SUB SWITCH
(REAR: RH)

POWER 
WINDOW
MOTOR
(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

Power Window (rear) Circuit

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-140

• Malfunction of the power window motor (front: 

LH), the power window motor (rear: RH) or the 
power window motor (rear: LH)

• Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the power window main switch.

Check that the power window lock switch is turned 
off.

Q: Is the check result normal?

YES : 

Go to Step 2.

NO : 

Turn off the power window lock switch.

Step 2. Determine a trouble spot.

Q: Which power window does not work?

Passenger's door <LH drive vehicles> : 

Go to Step 

3.

Passenger's door <RH drive vehicles> : 

Go to Step 

12.

Rear right door : 

Go to Step 21.

Rear left door : 

Go to Step 30.

Step 3. Connector check: F-15 power window sub 
switch (front: RH) connector

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair the connector.

Step 4. Resistance measurement at F-15 power 
window sub switch (front: RH) connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance between terminal No.1 and body 

earth.

OK: 2 

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Go to Step 5.

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

1

4

5

3 2

7 6

8

AC301474

Connector F-15
(Harness side)

AE

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) USING SWS MONITOR

54C-141

Step 5. Check the wiring harness from F-15 
power window sub switch (front: RH) connector 
terminal No.1 to body earth.

NOTE: 

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

• 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.

Step 6. Voltage measurement at F-15 power 
window sub switch (front: RH) connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Turn the ignition switch to the ON position.

(3) Voltage between terminal No.4 and body earth

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Go to Step 7.

Step 7. Connector check: C-217 power window 
relay connector

Q: Is the check result normal?

YES : 

Go to Step 8.

NO : 

Repair the connector.

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

AC310615

AB

Connector: C-14 <LHD>

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

1

4

5

3 2

7 6

8

AC301470

Connector F-15
(Harness Side)

AE

AC310623

Connector: C-217

AB

3

4

5

1

2

Junction block side

<LHD>

Junction block (Front view)