Mitsubishi Eclipse. Manual — part 344

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-869

DIAGNOSIS

STEP 1. Check connector A-13X at starter relay for
damage.
Q: Is the connector in good condition?

YES : Go to Step 2.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then confirm that the

malfunction symptom is eliminated.

STEP 2. Check the starter relay.
Refer to GROUP 16, Starting system

− On-vehicle Service −

Starter relay check

P.16-25

.

Q: Are there any abnormalities?

YES : Go to Step 3.
NO : Repair or replace it. Then confirm that the malfunction

symptom is eliminated.

STEP 3. Measure the power supply voltage at starter relay
connector A-13X.
(1) Disconnect the connector A-13X and measure at the

harness side.

(2) Turn the ignition switch to the "START" position.

(3) Measure the voltage between terminal No. 3, 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 4.
NO : Check connector C-28 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 ignition switch
connector C-87 (terminal No. 5) and starter relay
connector A-13X (terminal No. 3, No. 5) because of
open circuit. Then confirm that the malfunction
symptom is eliminated.

AK300455

1

2

3

4
5

CONNECTOR: A-13X

AB

A-13X

HARNESS CONNECTOR:
COMPONENT SIDE

AK300455

1

2

3

4
5

CONNECTOR: A-13X

AB

A-13X

HARNESS CONNECTOR:
COMPONENT SIDE

AK101400

3

4
5

1

2

AD

A-13X HARNESS
CONNECTOR:
COMPONENT SIDE

3

4
5

1

2

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-870

STEP 4. Check connector C-60 at ECM 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.

STEP 5. Measure the power supply voltage at ECM
connector C-60.
(1) Disconnect the connector C-60 and measure at the harness

side.

(2) Turn the ignition switch to the "START" position.

(3) Measure the voltage between terminal No. 71 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 starter relay connector

A-13X (terminal No. 2) and ECM connector C-60
(terminal No. 71) because of open circuit. Then
confirm that the malfunction symptom is eliminated.

AK300415

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

CONNECTOR: C-60 <M/T>

AB

C-60 (G)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300415

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

CONNECTOR: C-60 <M/T>

AB

C-60 (G)

HARNESS CONNECTOR:
COMPONENT SIDE

AK000410 AJ

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

C-60 HARNESS
CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-871

STEP 6. Check connector C-02 at interlock switch for
damage.
Q: Is the connector in good condition?

YES : Go to Step 7.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then confirm that the

malfunction symptom is eliminated.

STEP 7. Check the interlock switch.
Refer to GROUP 21A, On-vehicle Service

− Interlock switch

check and adjustment

P.21A-9

.

Q: Are there any abnormalities?

YES : Go to Step 8.
NO : Repair or replace it. Then confirm that the malfunction

symptom is eliminated.

STEP 8. Measure the power supply voltage at interlock
switch connector C-02.
(1) Disconnect the connector C-02 and measure at the harness

side.

(2) Turn the ignition switch to the "START" position.

(3) Measure the voltage between terminal No. 2 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 9.
NO : Check connector C-07 at intermediate connector for

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

P.00E-2

. If intermediate connectors is in good

condition, repair harness wire between starter relay
connector A-13X (terminal No. 1) and interlock switch
connector C-02 (terminal No. 2) because of open
circuit. Then confirm that the malfunction symptom is
eliminated.

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK000384AG

C-02 HARNESS
CONNECTOR:
COMPONENT SIDE

2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-872

STEP 9. Check the continuity at interlock switch harness
side connector C-02.
(1) Disconnect the connector C-02 and measure at the harness

side.

(2) Check for the continuity between terminal No. 1 and

ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Replace the ECM. Then confirm that the malfunction

symptom is eliminated.

NO : Repair harness wire between interlock switch

connector C-02 (terminal No. 1) and ground because
of open circuit or harness damage. Then confirm that
the malfunction symptom is eliminated.

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK000385

AG

C-02 HARNESS
CONNECTOR:
COMPONENT SIDE

2 1