Mitsubishi Montero Sport (2004+). Manual - part 460

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CIRCUIT OPERATION
The power window relay turn ON when the ignition 
switch (IG1) is turned ON.

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TECHNICAL DESCRIPTION (COMMENT)
The power window relay may be defective.

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TROUBLESHOOTING HINTS

• Malfunction of the power window relay

• Malfunction of the power window main switch 

• Damaged harness wires or connectors

DIAGNOSIS

STEP 1. Check power window relay connector C-75X for 
loose, corroded or damaged terminals, or terminals 
pushed back in the connector.
Q: Are the connector in good condition?

YES : Go to Step 2.
NO :  Repair or replace the damaged components. Refer to 

GROUP 00E 

P.00E-2

, Harness Connector inspection. 

Then go to Step 14.

AC309309AD

C-40

CONNECTORS: C-40, C-41

C-41

AC003622

CONNECTOR: C-75X

AE

C-75X

AC004311BJ

CONNECTORS: D-08, D-09

JUNCTION BLOCK 

(REAR)

D-09

D-08

AC004320

FRONT

DOOR

(LH)

CONNECTOR: F-05

AE

F-05

AC202074

4

2 1

3

CONNECTOR: C-75X

AB

C-75X

COMPONENT 

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STEP 2. Measure the power window relay continuity.
(1) Remove the power window relay. (Refer to 

P.42-137

.)

(2) Follow the table to check the power window relay continuity.

Q: Does the measured resistance value correspond with 

this range?
YES : Go to Step 3.
NO :  Replace power window relay, then go to Step 14.

STEP 3. Measure the power window relay supply circuit 
[ignition switch (IG2)] at the power window relay connector 
C-75X.
(1) Remove the power window relay, and measure at the power 

window relay connector C-75X (relay box side).

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

(3) Measure the voltage between terminal 4 and ground.
Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 5.
NO :  Go to Step 4.

BATTERY VOLTAGE

TESTER 
CONNECTION

SPECIFIED 
CONDITION

Not applied

1 

− 3

Open circuit

• Connect terminal 

No. 4 to the positive 
battery terminal

• Connect terminal 

No. 2 to the negative 
battery terminal

1 

− 3

Less than 2 ohms

1

2

3

4

1

2

3

4

AC003908

POWER WINDOW 

RELAY

AC202074

4

2 1

3

CONNECTOR: C-75X

AB

C-75X

COMPONENT 

SIDE

1

2

3

4

AC005049

C-75X HARNESS CONNECTOR:
COMPONENT SIDE

AC

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STEP 4. Check the harness wire between ignition switch 
(IG2) and power window relay connector C-75X (terminal 
No.4).

NOTE: After inspecting junction block connector D-08 and D-09 
inspect the wires. If junction block connector D-08 or D-09 is 
damaged, repair or replace it. Refer to GROUP 00E 

P.00E-2

, 

Harness Connector Inspection. Then go to Step 14.
Q: Are the harness wire damaged?

YES : Repair or replace the harness wire, then go to Step 

14.

NO :  Go to Step 14.

AC202074

4

2 1

3

CONNECTOR: C-75X

AB

C-75X

COMPONENT 

SIDE

AC309327AB

CONNECTORS: D-08, D-09

JUNCTION BLOCK (REAR)

D-09

D-08

D-08 COMPONENT SIDE

D-11 COMPONENT SIDE

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STEP 5. Check the power window relay supply circuit 
[fusible link (10)] at power window relay connector C-75X.
(1) Remove the power window relay, and measure at power 

window relay connector C-75X (relay box side).

(2) Measure the voltage between terminal 3 and ground.
Q: Is the measured voltage approximately 12 volts (battery 

positive voltage)?
YES : Go to Step 7.
NO :  Go to Step 6.

STEP 6. Check the harness wire between fusible link (10) 
and power window relay connector C-75X (terminal No.3).

NOTE: After inspecting intermediate connector C-41 inspect 
the wires. If intermediate connector C-41 is damaged, repair or 
replace it. Refer to GROUP 00E 

P.00E-2

, Harness Connector 

Inspection. Then go to Step 14.
Q: Is the harness wire damaged?

YES : Repair or replace the harness wire, then go to Step 

14.

NO :  Go to Step 14.

AC202074

4

2 1

3

CONNECTOR: C-75X

AB

C-75X

COMPONENT 

SIDE

1

2

3

4

AC005051

C-75X HARNESS CONNECTOR:
COMPONENT SIDE

AC

AC202074

4

2 1

3

CONNECTOR: C-75X

AB

C-75X

COMPONENT 

SIDE

AC309309AE

CONNECTOR: C-41

C-41