Mitsubishi Eclipse. Manual — part 347

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-881

STEP 5. Check connector C-49 at ECM <M/T> or connector
C-50 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then confirm that the

malfunction symptom is eliminated.

AK300413

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CONNECTOR: C-49 <M/T>

C-49 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300414

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C-50 (GR)

CONNECTOR: C-50 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-882

STEP 6. Check for open circuit and short circuit to ground
between ignition coil connector and ECM connector <M/T>
or PCM connector <A/T>.

a. Check the harness wire between ignition coil connector

B-16 (terminal No. 3) and ECM connector C-49 (terminal
No. 10) <M/T> or PCM connector C-50 (terminal No. 11)
<A/T> when checking ignition coil 1.

b. Check the harness wire between ignition coil connector

B-21 (terminal No. 3) and ECM connector C-49 (terminal
No. 23) <M/T> or PCM connector C-50 (terminal No. 12)
<A/T> when checking ignition coil 2.

Q: Is the harness wire in good condition?

YES : Replace the PCM. Then confirm that the malfunction

symptom is eliminated.

NO : Repair it. Then confirm that the malfunction symptom

is eliminated.

AK300742

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CONNECTORS: B-16, B-21

AB

B-21 (GR)

B-16 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300413

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CONNECTOR: C-49 <M/T>

C-49 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300414

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C-50 (GR)

CONNECTOR: C-50 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-883

STEP 7. Check for harness damage between ignition coil
connector and ECM connector <M/T> or PCM connector
<A/T>.

a. Check the harness wire between ignition coil connector

B-16 (terminal No. 3) and ECM connector C-49 (terminal
No. 10) <M/T> or PCM connector C-50 (terminal No. 11)
<A/T> when checking ignition coil 1.

b. Check the harness wire between ignition coil connector

B-21 (terminal No. 3) and ECM connector C-49 (terminal
No. 23) <M/T> or PCM connector C-50 (terminal No. 12)
<A/T> when checking ignition coil 2.

Q: Is the harness wire in good condition?

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

is eliminated.

AK300742

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2

3

CONNECTORS: B-16, B-21

AB

B-21 (GR)

B-16 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300413

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CONNECTOR: C-49 <M/T>

C-49 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300414

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C-50 (GR)

CONNECTOR: C-50 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-884

STEP 8. Check for continuity at ignition coil harness side
connector B-16, B-21.
(1) Disconnect the connectors B-16, B-21 and measure at the

harness side.

(2) Check for continuity between terminal No. 2 and ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Go to Step 9.
NO : Repair harness wire between ignition coil connector

B-16, B-21 (terminal No. 2) and ground because of
open circuit or harness damage. Then confirm that
the malfunction symptom is eliminated.

AK300742

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2

3

CONNECTORS: B-16, B-21

AB

B-21 (GR)

B-16 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK101265

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AJ

B-16, B-21 HARNESS
CONNECTORS:
COMPONENT SIDE

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