Mitsubishi Montero (2002-2004). Manual - part 744

TSB Revision

SYMPTOM PROCEDURES

13Ad-25

STEP 4. Using scan tool MB991502, check data list.
(1) Turn the ignition switch to the "ON" position.
(2) Check the following items in the data list. Refer to GROUP 

13A, Data List Reference Table 

P.13Ab-29

.

a. Item 21: Engine Coolant Temperature Sensor.
b. Item 18: Cranking signal (ignition switch - ST)

(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : Go to Step 5.
NO :  Repair or replace. Then confirm that the malfunction 

symptom is eliminated.

STEP 5. Inspection of throttle body (throttle valve area) for 
dirtiness.
Q: Is the throttle valve area dirty?

YES : Refer to GROUP 13A, On-vehicle Service 

− Clean the 

throttle valve area 

P.13Aa-11

.

NO :  Go to Step 6.

STEP 6. Check the ignition timing.
(1) Check the ignition timing at cranking.

Standard value: 5

° BTDC ± 3°

Q: Is the ignition timing normal?

YES : Go to Step 7.
NO :  Check that the crankshaft position sensor and timing 

belt cover are in the correct position. Then confirm 
that the malfunction symptom is eliminated.

STEP 7. Check the left bank injector.
(1) Disconnect the left bank injector connector B-11, B-33, B-

35.

(2) Measure the resistance between each injector side 

connector terminal No. 1 and No. 2.

Standard value: 13 

− 16 ohms [at 20°C (68°F)]

Q: Is the resistance between 13 and 16 ohms [at 20

°C 

(68

°F)]?

YES : Go to Step 8.
NO :  Replace the faulty injector. Then confirm that the 

malfunction symptom is eliminated.

ACX01539

16-PIN

MB991502

AC

AK201292

1

2

B-11(GR)

B-35(GR)

B-33(GR)

CONNECTORS: B-11, B-33, B-35

AB

HARNESS 
CONNECTORS: 
COMPONENT SIDE

AKX01414AB

INJECTOR SIDE
CONNECTOR

1 2

TSB Revision

SYMPTOM PROCEDURES

13Ad-26

STEP 8. Check the right bank injector resistance at injector 
intermediate connector B-44.
(1) Disconnect the injector intermediate connector B-44.

(2) Measure the resistance between each male connector side 

terminal.

a. Measure the resistance between terminal No. 8 and No. 

3 when measuring No. 1 cylinder injector.

b. Measure the resistance between terminal No. 8 and No. 

1 when measuring No. 3 cylinder injector.

c. Measure the resistance between terminal No. 8 and No. 

6 when measuring No. 5 cylinder injector.

• Resistance should be between 13 and 16 ohms [at 20°C 

(68

°F)].

Q: Is the measured resistance between 13 and 16 ohms [at 

20

°C (68°F)]?

YES : Go to Step 11.
NO :  Go to Step 9.

STEP 9. Check the right bank injector.
(1) Remove the intake manifold.
(2) Disconnect the right bank injector connector, which 

deviates from the standard value at Step 9.

(3) Measure the resistance between injector side connector 

terminal No. 1 and No. 2.

Standard value: 13 

− 16 ohms [at 20°C (68°F)]

Q: Is the measured resistance between 13 

− 16 ohms [at 

20

°C (68°F)]?

YES : Go to Step 10.
NO :  Replace the injector. Then confirm that the 

malfunction symptom is eliminated.

AK200949

3

4

7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AKX01495

INJECTOR INTERMEDIATE
MALE SIDE CONNECTOR 

1 2 3 4

5 6 7 8

AB

AK200950

1

2

B-03(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AKX01414AB

INJECTOR SIDE
CONNECTOR

1 2

TSB Revision

SYMPTOM PROCEDURES

13Ad-27

STEP 10. Check harness connector B-01 or B-02 or B-03 at 
right bank injector for damage.
(1) Check the injector connector, which deviates from the 

standard value at Step 9.

Q: Is the harness connector in good condition?

YES : Repair harness wire between injector intermediate 

connector and right bank injector connector because 
of harness damage. Then confirm that the 
malfunction symptom is eliminated.

NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

STEP 11. Check harness connector B-44 at injector 
intermediate connector for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 12.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

STEP 12. Check harness connector B-11, B-33, B-35 at left 
bank injector for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 13.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

.Then confirm that the 

malfunction symptom is eliminated.

AK200950

1

2

B-03(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK200949

3

4

7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201292

1

2

B-11(GR)

B-35(GR)

B-33(GR)

CONNECTORS: B-11, B-33, B-35

AB

HARNESS 
CONNECTORS: 
COMPONENT SIDE

TSB Revision

SYMPTOM PROCEDURES

13Ad-28

STEP 13. Check harness connector D-132 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 14.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

AK200938

2

3

4

5

6

7

8

9

1

10

14

15

16

17

18

19

20

21

22

23

24

25

26

27

11

12

13

AB

CONNECTOR: D-132

HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-132(GR)