Mitsubishi Grandis. Manual - part 36

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-141

• Malfunction of the power window motor (front: 

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

Front passenger's door <LH drive vehicles> : 

Go 

to Step 3.

Front 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 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) NOT USING SWS MONITOR

54B-142

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 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)

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-143

Step 8. Check the wiring harness from F-15 
power window sub switch (front: RH) connector 
terminal No.4 to C-217 power window connector 
terminal No.4.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connectors C-14 and junction block 
connector C-202, and repair if necessary.

• Check the power supply line 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 9. Connector check: F-16 power window 
motor (front: RH) connector

Q: Is the check result normal?

YES : 

Go to Step 10.

NO : 

Repair the connector.

Step 10. Check the wiring harness from F-16 
power window motor (front: RH) connector 
terminal Nos.1 and 3 to F-15 power window sub 
switch (front: RH) connector terminal Nos.5 and 
7.

• Check the input and output lines for open or short 

circuit.

Q: Is the check result normal?

YES : 

Go to Step 11.

NO : 

Repair the wiring harness.

Step 11. 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 (front: RH).
(1) Replace the power window sub switch (front: 

RH).

(2) Check that the front passenger's door power 

window can be operated by the power window 

AC310624

Connector: C-202, C-217

AB

3

4

5

1

2

Junction block side

<LHD>

Junction block (Front view)

C-217

C-202

C-217

C-202

Harness side

AC311147

AB

Connector: F-15

<LHD>

Harness side

F-15(B)

AC310615

AB

Connector: C-14 <LHD>

AC311147

AC

Connector: F-16

Harness side

<LHD>

F-16(B)

AC311147

AD

Connectors: F-15, F-16

Harness side

F-15(B)

Harness side

F-16(B)

F-15

F-16

<LHD>

SYMPTOM PROCEDURES

SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR

54B-144

sub switch (front: RH).

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 assembly 
(front: RH).

Step 12. Connector check: F-26 power window 
sub switch (front: LH) connector

Q: Is the check result normal?

YES : 

Go to Step 13.

NO : 

Repair the connector.

Step 13. Resistance measurement at F-26 power 
window sub switch (front: LH) connector.

(1) Disconnect the connector, and measure at the 

wiring harness side.

(2) Resistance between terminal 1 and body earth

OK: 2 

Ω or less

Q: Is the check result normal?

YES : 

Go to Step 15.

NO : 

Go to Step 14.

Step 14. Check the wiring harness from F-26 
power window sub switch (front: LH) terminal 
No.1 to body earth.

NOTE: 

Prior to the wiring harness inspection, check 
intermediate connector C-27 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.

AC310211

AB

Connector: F-26

Harness side

<RHD>

F-26(B)

AC310211

AB

Connector: F-26

Harness side

<RHD>

F-26(B)

1

4

5

3 2

7 6

8

AC301474

Connector F-26
(Harness side)

AF

AC310211

AB

Connector: F-26

Harness side

<RHD>

F-26(B)

AC310628AC

Connector: C-27 <RHD>