Mitsubishi Outlander GS45X. Manual - part 742

 

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Mitsubishi Outlander GS45X. Manual - part 742

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-791

STEP 3. Check the fuel pump relay.
(1) Remove the ETACS-ECU.
(2) Use jumper wires to connect C-317 ETACS-ECU terminal 

No. 6 to the positive battery terminal and C-304 
ETACS-ECU terminal No. 11 to the negative battery 
terminal.

(3) Check for continuity between the C-307 ETACS-ECU 

terminal No. 1 and C-314 ETACS-ECU terminal No. 1 while 
connecting and disconnecting the jumper wire at the 
negative battery terminal.

• Continuity (2 Ω or less) <Negative battery terminal con-

nected>

• Should be open loop. <Negative battery terminal discon-

nected>

(4) Install the ETACS-ECU.
Q: Is the measured resistance normal?

YES : Go to Step 4.
NO :  Replace the ETACS-ECU. Then confirm that the 

malfunction symptom is eliminated.

STEP 4. Check harness connector B-11 at ECM connector 
for damage.
Q: Is the connector in good condition?

YES : Go to Step 5.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

1 2 3 4

5 6 7

8 9 10 11

131415

12

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1 2

1

6

4

5

9

8

10 11

13

15

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12

16

7

2 3

AK703917AC

C-314
ETACS-ECU
side connector

C-307
ETACS-ECU
side connector

C-304
ETACS-ECU
side connector

C-317 ETACS-ECU
side connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-792

STEP 5. Measure the power supply voltage at ECM 
connector B-11.
(1) Disconnect the connector B-11 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 96 and ground.

• Voltage should be 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 :  Repair harness wire between ETACS-ECU connector 

C-304 (terminal No. 11) and ECM connector B-11 
(terminal No. 96) because of open circuit or short 
circuit to ground. Then confirm that the malfunction 
symptom is eliminated.

STEP 6. Measure the power supply voltage at ETACS-ECU 
connector C-307.
(1) Disconnect the connector C-307 and measure at the 

harness side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 1 and ground.

• Voltage should be 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 8.
NO :  Go to Step 7.

AK700221

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83 84 85 86 87 88 89 90 91 92 93 94

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117

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94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

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AB

B-11 harness
connector:
component side 

1

2

AK604049 AB

C-307 harness
connector:
component side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-793

STEP 7. Check harness connector A-33X at MFI relay 
connector for damage.
Q: Is the connector in good condition?

YES : Repair harness wire between MFI relay connector 

A-33X (terminal No. 2) and ETACS-ECU connector 
C-307 (terminal No. 1) because of open circuit or 
short circuit to ground. 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 8. Check harness connector D-20 at fuel pump 
connector for damage.
Q: Is the connector in good condition?

YES : Go to Step 9.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

STEP 9. Check the fuel pump operation.
(1) Disconnect fuel pump connector D-20.
(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 10.
NO :  Replace the fuel pump. Then confirm that the 

malfunction symptom is eliminated.

STEP 10. Check for continuity at fuel pump harness side 
connector D-20.
(1) Disconnect the connector D-20 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 11.
NO :  Repair harness wire between fuel pump connector 

D-20 (terminal No. 4) and ground because of open 
circuit or harness damage. Then confirm that the 
malfunction symptom is eliminated.

AK604050

1 2 3

4 5

AB

Fuel pump side
connector

AK700218

1

2

3

4

5

AB

D-20 harness connector:
component side 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-794

STEP 11. Measure the power supply voltage at fuel pump 
connector D-20.
(1) Disconnect the connector D-20 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 5 and ground.

• Voltage should be 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 13.
NO :  Go to Step 12.

STEP 12. Check for harness damage between ETACS-ECU 
connector C-304 (terminal No. 11) and ECM connector B-11 
(terminal No. 96)
Q: Is the harness wire in good condition?

YES : Replace the ECM. When the ECM is replaced, 

register the ID code. Refer to GROUP 42B, Diagnosis 
− ID Code Registration Judgment Table <Vehicles 

with KOS> 

P.42B-15

 or GROUP 42C, Diagnosis 

− ID 

Codes Registration Judgment Table <Vehicles with 
WCM> 

P.42C-10

. Then confirm that the malfunction 

symptom is eliminated.

NO :  Repair it. Then confirm that the malfunction symptom 

is eliminated.

STEP 13. Check harness connector A-33X at MFI relay 
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 MFI relay 
connector A-33X (terminal No. 2) and ETACS-ECU 
connector C-307 (terminal No. 1).
Q: Is the harness wire in good condition?

YES : Repair harness wire between ETACS-ECU connector 

C-314 (terminal No. 1) and fuel pump connector 
(terminal No. 5) because of harness damage. Then 
confirm that the malfunction symptom is eliminated.

NO :  Repair it. Then confirm that the malfunction symptom 

is eliminated.

AK704313

1

2

3

4

5

AB

D-20 harness connector:
component side 

 

 

 

 

 

 

 

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