Mitsubishi Montero (2002-2004). Manual - part 760

 

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Mitsubishi Montero (2002-2004). Manual - part 760

 

 

TSB Revision

SYMPTOM PROCEDURES

13Ad-89

STEP 4. Measure the power supply voltage at fuel pump 
relay 1 harness side connector B-19X.
(1) Disconnect the connector B-19X and measure at the 

harness side.

(2) Measure the voltage between terminal No. 3 and ground.

• Voltage should measure battery positive voltage.

Q: Is battery positive voltage (approximately 12 volts) 

present?
YES : 
Go to Step 5.
NO :  Check harness connector A-05 at intermediate 

connector for damage, and repair or replace as 
required. Refer to, GROUP 00E, Harness Connector 
Inspection 

P.00E-2

If intermediate connectors are in 

good condition, repair harness wire between fuse box 
(fuse 6) and fuel pump relay 1 connector B-19X 
(terminal No. 3) because of open circuit. Then confirm 
that the malfunction symptom is eliminated.

AK201175

2 1

3

4

B-19X

AB

CONNECTOR: B-19X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

2 1

3

4

AK201382

B-19X HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201382AB

TSB Revision

SYMPTOM PROCEDURES

13Ad-90

STEP 5. Measure the power supply voltage at fuel pump 
relay 2 harness side connector B-24X.
(1) Disconnect the connector B-24X and measure at the 

harness side.

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

(3) Measure the voltage between terminal No. 4 and ground.

• Voltage should measure battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts) 

present?
YES : 
Go to Step 6.
NO :  Check harness connectors D-208, D-221, E-111 at 

intermediate connector for damage, and repair or 
replace as required. Refer to, GROUP 00E, Harness 
Connector Inspection 

P.00E-2

. If intermediate 

connector is in good condition, repair harness wire 
between ignition switch connector D-204 (terminal 
No. 2) and fuel pump relay 2 connector B-24X 
(terminal No. 4) because of open circuit. Then confirm 
that the malfunction symptom is eliminated.

STEP 6. Check for continuity at fuel pump relay 2 harness 
side connector B-24X.
(1) Disconnect the connector B-24X and measure at the 

harness side.

(2) Check for the continuity between terminal No. 2 and 

ground.

• Should be less than 2 ohms.

Q: Does continuity exist?

YES : Go to Step 7.
NO :  Repair harness wire between fuel pump relay 2 

connector B-24X (terminal No. 2) and ground 
because of open circuit. Then confirm that the 
malfunction symptom is eliminated.

AK201177

2 1

3

4

B-24X

AB

CONNECTOR: B-24X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

2 1

3

4

AK201383

B-24X HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201383AB

AK201177

2 1

3

4

B-24X

AB

CONNECTOR: B-24X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201384

2 1

3

4

B-24X HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201384AB

2 1

3

4

TSB Revision

SYMPTOM PROCEDURES

13Ad-91

STEP 7. Measure the power supply voltage at fuel pump 
relay 1 harness side connector B-19X.
(1) Disconnect the connector B-19X and measure at the 

harness side.

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

(3) Measure the voltage between terminal No. 4 and ground.

• Voltage should measure battery positive voltage.

Q: Is battery positive voltage (approximately 12 volts) 

present?
YES : 
Go to Step 8.
NO :  Repair harness wire between fuel pump relay 1 

connector B-19X (terminal No. 4) and fuel pump relay 
2 connector B-24X (terminal No. 4) because of open 
circuit. Then confirm that the malfunction symptom is 
eliminated.

STEP 8. Check for open circuit and short circuit to ground 
and harness damage between fuel pump relay 1 connector 
B-19X (terminal No. 1) and fuel pump relay 2 connector B-
24X (terminal No. 1).
NOTE:  Repair or replace them. After to GROUP 00E, Harness 
Connector Inspection 

P.00E-2

. Then check that the malfunc-

tion is eliminated.
Q: Is the harness wire in good condition?

YES : Go to Step 9.
NO :  Repair it. Then confirm that the malfunction symptom 

is eliminated.

STEP 9. Check connector G-04 at fuel pump for damage.
Q: Is the connector in good condition?

YES : Go to Step 10.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

AK201175

2 1

3

4

B-19X

AB

CONNECTOR: B-19X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201385

2 1

3

4

B-19X HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201385AB

2 1

3

4

AK201178

2 1

3

4

B-19X

B-24X

AB

CONNECTORS: B-19X, B-24X

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201553

1

2

3

4

5

G-04(GR)

AB

CONNECTOR: G-04

HARNESS 
CONNECTOR: 
COMPONENT SIDE

TSB Revision

SYMPTOM PROCEDURES

13Ad-92

STEP 10. Check the fuel pump operation.
(1) Disconnect fuel pump connector G-04.

(2) Use jumper wires to connect fuel pump connector terminal 

No. 5 to the positive battery terminal and terminal No. 4 to 
the negative battery terminal.

• An operating sound of the fuel pump should be heard.

Q: Is the fuel pump operating properly?

YES : Go to Step 11.
NO :  Replace the fuel pump. Then confirm that the 

malfunction symptom is eliminated.

STEP 11. Check for continuity at fuel pump harness side 
connector G-04.
(1) Disconnect the connector G-04 and measure at the harness 

side.

(2) Check for the continuity between terminal No. 4 and 

ground.

• Should be less than 2 ohms.

Q: Does continuity exist?

YES : Go to Step 12.
NO :  Check harness connector F-07 at intermediate 

connector for damage, and repair or replace as 
required. Refer to, GROUP 00E, Harness Connector 
Inspection 

P.00E-2

If intermediate connector is in 

good condition, repair harness wire damage between 
fuel pump connector G-04 (terminal No. 4) and 
ground because of open circuit or harness damage. 
Then confirm that the malfunction symptom is 
eliminated.

AK201553

1

2

3

4

5

G-04(GR)

AB

CONNECTOR: G-04

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AKX01439

FUEL PUMP SIDE
CONNECTOR

AB

1 2 3

4 5

AK201553

1

2

3

4

5

G-04(GR)

AB

CONNECTOR: G-04

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AKX01440

G-04 HARNESS
SIDE CONNECTOR

3 2 1

5 4

AB

 

 

 

 

 

 

 

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