Mitsubishi Montero (2002-2004). Manual — part 742

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SYMPTOM PROCEDURES

13Ad-17

STEP 2. Check the continuity at combination meter
harness side connector D-04.
(1) Disconnect the connector D-04 and measure at the harness

side.

(2) Disconnect the PCM connector D-132.
(3) Check for the continuity between terminal No. 38 and

ground.

• Should be open loop.

Q: Is the continuity normal?

YES : Replace the PCM. Then confirm that the malfunction

symptom is eliminated.

NO : Check harness connector E-111 at the intermediate

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

P.00E-2

. If intermediate connectors E-111

is in good condition, repair a short circuit to ground
between combination meter connector D-04 (terminal
No. 38) and PCM connector D-132 (terminal No. 7).
Then confirm that the malfunction symptom is
eliminated.

AK200978

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38

39

40

43

41

42

44

47

45

46

32 31

33

34

35

36

AB

D-04(GR)

HARNESS
CONNECTOR:
COMPONENT SIDE

CONNECTOR: D-04

AK200938

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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)

AK201373

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38

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43

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44

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32 31

33

34

35

36

D-04 HARNESS
CONNECTOR:
COMPONENT SIDE

AK201373AB

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38

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43

41

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44

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32 31

33

34

35

36

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SYMPTOM PROCEDURES

13Ad-18

INSPECTION PROCEDURE 5: Cranks, Won't Start

.

Cranks, Won't Start Circuit

• Refer to Ignition circuit

P.13Ad-99

.

.

CIRCUIT OPERATION

• Refer to Ignition circuit

P.13Ad-99

.

.

COMMENT

• In cases such as the above, the cause is proba-

bly no spark, fuel delivery, or fuel quality prob-
lems. In addition, foreign materials (water,
kerosene, etc.) may be mixed with the fuel.

.

TROUBLESHOOTING HINTS (The most likely
causes for this case: )

• Malfunction of the ignition system.

• Malfunction of the fuel pump system.

• Malfunction of the injector system.

• Malfunction of the PCM.

• Contaminated fuel.

• Malfunction of the immobilizer system.

DIAGNOSIS

Required Special Tools:

• MB991502: Scan Tool (MUT-II)

• MB991348: Test Harness

STEP 1. Check the battery positive voltage.
(1) Measure the battery positive voltage during cranking.

• The voltage should be 8 volts or more.

Q: Is the voltage normal?

YES : Go to Step 2.
NO : Check the battery. Refer to GROUP 54A, Battery

−

Battery Check

P.54A-4

. Then confirm that the

malfunction symptom is eliminated.

STEP 2. Check the timing belt for breaks.
Q: Is the timing belt good condition?

YES : Go to Step 3.
NO : Replace timing belt. Then confirm that the malfunction

symptom is eliminated.

STEP 3. Using scan tool MB991502, read the diagnostic
trouble code (DTC).

CAUTION

To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC set?

YES : Refer to GROUP 13A, Diagnostic Trouble Code Chart

P.13Ab-2

.

NO : Go to Step 4.

ACX01539

16-PIN

MB991502

AC

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SYMPTOM PROCEDURES

13Ad-19

STEP 4. Using scan tool MB991502, check data list.

CAUTION

To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Check the following items in the data List. Refer to GROUP

13A, Data List Reference Table

P.13Ab-29

.

a. Item 16: Power Supply Voltage.
b. Item 22: Crankshaft Position Sensor.

c. Item 21: Engine Coolant Temperature Sensor.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are they operating properly?

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

symptom is eliminated.

STEP 5. Using scan tool MB991502, check actuator test.
(1) Turn the ignition switch to the "ON" position.
(2) Check the following items in the actuator test. Refer to

GROUP 13A, Actuator Test Reference Table

P.13Ab-42

.

a. Item 07: Fuel pump.

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

YES : Go to Step 6.
NO : Repair or replace. Then confirm that the malfunction

symptom is eliminated.

STEP 6. Check the ignition system.
(1) Connect the timing light to terminal No. 1 of the ignition coil

connector B-31, B-32 or B-34 in order.

(2) Crank the engine.

• The timing light flashes.

(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Does the timing light flash?

YES : Go to Step 7.
NO : Refer to INSPECTION PROCEDURE 30

− Ignition

Circuit System

P.13Ad-99

.

STEP 7. 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 8.
NO : Check that the crankshaft position sensor and timing

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

ACX01539

16-PIN

MB991502

AC

ACX01539

16-PIN

MB991502

AC

AK201291

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2

3

B-31(GR)

B-32(GR)

B-34(GR)

AB

CONNECTORS: B-31, B-32, B-34

HARNESS
CONNECTOR:
COMPONENT SIDE

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SYMPTOM PROCEDURES

13Ad-20

STEP 8. 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 9.
NO : Replace the faulty injector. Then confirm that the

malfunction symptom is eliminated.

STEP 9. 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 12.
NO : Go to Step 10.

AK201292

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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

AK200949

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7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS
CONNECTOR:
COMPONENT SIDE

AK201554

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5 6 7 8

2 3 4

AB

INJECTOR INTERMEDIATE
MALE SIDE CONNECTOR