Mitsubishi Montero (2002-2004). Manual — part 657

TSB Revision

DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-325

STEP 10. Using the oscilloscope, check the injector.
(1) Disconnect the injector intermediate connector B-44 and

connect the test harness special tool (MB998474)
inbetween.

(2) Connect the oscilloscope probe to each injector

intermediate connector terminal to oscilloscope each
cylinder:

• Terminal No. 3 (green clip) when checking No. 1 cylinder

injector.

• Terminal No. 2 (white clip) when checking No. 2 cylinder

injector.

• Terminal No. 1 (blue clip) when checking No. 3 cylinder

injector.

• Terminal No. 7 (yellow clip) when checking No. 4 cylin-

der injector.

• Terminal No. 6 (red clip) when checking No. 5 cylinder

injector.

• Terminal No. 5 (black clip) when checking No. 6 cylinder

injector.

NOTE: When measuring with the PCM side connector, con-
nect an oscilloscope probe to the each of the following ter-
minals.

.

•

PCM terminal No. 1 when checking No. 1 cylinder injec-
tor.

•

PCM terminal No. 9 when checking No. 2 cylinder injec-
tor.

•

PCM terminal No. 24 when checking No. 3 cylinder
injector.

•

PCM terminal No. 2 when checking No. 4 cylinder injec-
tor.

•

PCM terminal No. 10 when checking No. 5 cylinder
injector.

•

PCM terminal No. 25 when checking No. 6 cylinder
injector.

(3) Start the engine and run at idle.

AK200949

3

4

7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS
CONNECTOR:
COMPONENT SIDE

AK102982 AB

OSCILLOSCOPE

INJECTOR
INTERMEDIATE
CONNECTOR

MD998474

1 2 3 4

5 6 7 8

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-326

(4) Measure the waveform.

• The waveform should show a normal pattern similar to

the illustration.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the waveform normal?

YES : Go to Step 13.
NO : Go to Step 11.

STEP 11. Check the injector connector for damage.

a. Check harness connector B-01 when checking No. 1 cylin-

der injector.

b. Check harness connector B-33 when checking No. 2 cylin-

der injector.

c. Check harness connector B-02 when checking No. 3 cylin-

der injector.

d. Check harness connector B-35 when checking No. 4 cylin-

der injector.

e. Check harness connector B-03 when checking No. 5 cylin-

der injector.

f. Check harness connector B-11 when checking No. 6 cylin-

der injector.

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 go to Step 17.

AKX01557 AB

A

NORMAL WAVEFORM

A:INJECTOR DRIVE TIME

AK200960

1

2

B-03(GR)

B-11(GR)

B-35(GR)

B-33(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03, B-11,

B-33, B-35

AB

HARNESS CONNECTOR:
COMPONENT SIDE

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-327

STEP 12. Check for short circuit to ground between
injector intermediate connector and injector connector.

a. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-01
(terminal No. 1) and injector connector B-01 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 3)
when checking No. 1 cylinder injector.

b. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-33
(terminal No. 1) and injector connector B-33 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 2)
when checking No. 2 cylinder injector.

c. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-02
(terminal No. 1) and injector connector B-02 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 1)
when checking No. 3 cylinder injector.

d. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-35
(terminal No. 1) and injector connector B-35 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 7)
when checking No. 4 cylinder injector.

e. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-03
(terminal No. 1) and injector connector B-03 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 6)
when checking No. 5 cylinder injector.

f. Check the harness wire between injector intermediate con-

nector B-44 (terminal No. 8) and injector connector B-11
(terminal No. 1) and injector connector B-11 (terminal No. 2)
and injector intermediate connector B-44 (terminal No. 5)
when checking No. 6 cylinder injector.

Q: Is the harness wire in good condition?

YES : Replace the PCM Then go to Step 17.
NO : Repair it. Then go to Step 17.

AK200949

3

4

7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS
CONNECTOR:
COMPONENT SIDE

AK200960

1

2

B-03(GR)

B-11(GR)

B-35(GR)

B-33(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03, B-11,

B-33, B-35

AB

HARNESS CONNECTOR:
COMPONENT SIDE

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DIAGNOSTIC TROUBLE CODE PROCEDURES

13Ac-328

STEP 13. Check the injector connector for damage.

a. Check harness connector B-01 when checking No. 1 cylin-

der injector.

b. Check harness connector B-33 when checking No. 2 cylin-

der injector.

c. Check harness connector B-02 when checking No. 3 cylin-

der injector.

d. Check harness connector B-35 when checking No. 4 cylin-

der injector.

e. Check harness connector B-03 when checking No. 5 cylin-

der injector.

f. Check harness connector B-11 when checking No. 6 cylin-

der injector.

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 go to Step 17.

STEP 14. Check for harness damage between MFI relay
connector B-22X (terminal No. 1) and injector intermediate
connector B-44 (terminal No. 8).
Q: Is the harness wire in good condition?

YES : Go to Step 15.
NO : Repair it. Then go to Step 17.

AK200960

1

2

B-03(GR)

B-11(GR)

B-35(GR)

B-33(GR)

B-02(GR)

B-01(GR)

CONNECTORS: B-01, B-02, B-03, B-11,

B-33, B-35

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK200951

2 1

3

4

B-22X

AB

CONNECTOR: B-22X

HARNESS
CONNECTOR:
COMPONENT SIDE

AK200949

3

4

7

8

1

2

5

6

B-44(B)

CONNECTOR: B-44

AB

HARNESS
CONNECTOR:
COMPONENT SIDE