Mitsubishi Outlander GS45X. Manual — part 740

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-783

STEP 12. Check for continuity at ETACS-ECU side
connector C-304 and C-317.
(1) Disconnect the connector C-304, C-317 and measure at the

ETACS-ECU side.

(2) Measure the resistance between connector C-304 (terminal

No. 10) and connector C-317 (terminal No. 6).
NOTE: Connect the (+) side of circuit tester to connector
C-304 (terminal No. 10).

• Should be less than 2 ohms

Q: Is the harness wire in good condition?

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

Connector Inspection

P.00E-2

.

STEP 13. Check harness connector C-210 ignition switch
connector for damage.
Q: Is the 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.

STEP 14. Check for harness damage between ignition
switch connector C-210 (terminal No. 2) and ETACS-ECU
connector C-317 (terminal No. 6).
Q: Is the harness wire in good condition?

YES : Go to Step 15.
NO : Repair it. Then confirm that the malfunction symptom

is eliminated.

STEP 15. Check for harness damage between ETACS-ECU
connector C-304 (terminal No. 10) and ECM connector B-11
(terminal No. 92).
Q: Is the harness wire in good condition?

YES : Go to Step 16.
NO : Repair it. Then confirm that the malfunction symptom

is eliminated.

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AK704304

C-317 ETACS-ECU
side connector

C-304 ETACS-ECU
side connector

( )

( )

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-784

STEP 16. Measure the backup power supply voltage at
ECM harness side connector B-11.
(1) Disconnect the connector B-11 and measure at the harness

side.

(2) Measure the voltage between terminal No. 104 and ground.

• Voltage should be battery positive voltage.

Q: Is battery positive voltage (approximately 12 volts)

present?
YES : Go to Step 17.
NO : Repair harness wire between fusible link (36) and

ECM connector B-11 (terminal No. 104) because of
short circuit to ground. Then confirm that the
malfunction symptom is eliminated.

STEP 17. Check for continuity at ECM harness side
connector B-11.
(1) Disconnect the connector B-11 and measure at the harness

side.

(2) Check for the continuity between terminals (No. 81, No. 93)

and ground.

• Continuity (2 Ω or less)

Q: Does continuity exist?

YES : Go to Step 18.
NO : Check harness connector A-66 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 ECM
connector B-11 (terminal No. 81, No. 93) and ground
because of open circuit or harness damage. Then
confirm that the malfunction symptom is eliminated.

AK604223

82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

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AC

B-11 harness
connector: component side

82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

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AK704306 AB

B-11 harness
connector:
component side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-785

STEP 18. Measure the power supply voltage at ECM
harness side connector B-11.
(1) Disconnect the connector B-11 and measure at the harness

side.

(2) Measure the voltage between terminal No. 73 and ground.

• Voltage should be battery positive voltage.

Q: Is battery positive voltage (approximately 12 volts)

present?
YES : Go to Step 19.
NO : Repair harness wire between MFI relay connector

A-33X (terminal No. 1) and ECM connector B-11
(terminal No. 73) because of open circuit. Then
confirm that the malfunction symptom is eliminated.

82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

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AK704308AB

B-11 harness
connector:
component side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-786

STEP 19. Measure the power supply voltage at ECM
harness side connector B-11.
(1) Disconnect the connector B-11 and measure at the harness

side.

(2) Using a jumper wire, connect terminal No. 73 to ground.
(3) Measure the voltage between terminal No. 82 and ground.

• Voltage should be battery positive voltage.

Q: Is battery positive voltage (approximately 12 volts)

present?
YES : Go to Step 22.
NO : Go to Step 20.

STEP 20. Check for open circuit and short circuit to
ground between MFI relay connector A-33X (terminal No.
2) and ECM connector B-11 (terminal No. 82).
Q: Is the harness wire in good condition?

YES : Go to Step 21.
NO : Repair it. Then confirm that the malfunction symptom

is eliminated.

STEP 21. Check for harness damage between fusible link
(36) and MFI relay connector A-33X (terminal No. 3, No. 4).
Q: Is the harness wire in good condition?

YES : Repair harness wire between MFI relay connector

A-33X (terminal No. 1) and ECM connector (terminal
No. 73) because of harness damage. Then confirm
that the malfunction symptom is eliminated.

NO : Repair it. Then confirm that the malfunction symptom

is eliminated.

82 81 80 79 78 77 76 75 74 73 72 71

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99 98 97 96 95

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AK704309AB

B-11 harness
connector:
component side