Mitsubishi Eclipse. Manual — part 566

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-807

STEP 8. Check connector C-51 at ECM <M/T> or connector
C-52 at PCM <A/T> 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 go to Step 14.

AK300458

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CONNECTOR: C-52 <A/T>

C-52 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300443

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CONNECTOR: C-51 <M/T>

C-51 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-808

STEP 9. Check for open circuit and short circuit to ground
between idle air control motor connector B-34 and ECM
connector C-51 <M/T> or PCM connector C-52 <A/T>.

a. Idle air control motor connector B-34 terminal 1 and ECM

connector C-51 (terminal No. 14) <M/T> or PCM connector
C-52 (terminal No. 14) <A/T>.

b. Idle air control motor connector B-34 (terminal No. 3) and

ECM connector C-51 (terminal No. 28) <M/T> or PCM con-
nector C-52 (terminal No. 28) <A/T>.

c. Idle air control motor connector B-34 (terminal No. 4) and

ECM connector C-51 (terminal No. 15) <M/T> or PCM con-
nector C-52 (terminal No. 15) <A/T>.

d. Idle air control motor connector B-34 (terminal No. 6) and

ECM connector C-51 (terminal No. 29) <M/T> or PCM con-
nector C-52 (terminal No. 29) <A/T>.

Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 14.
NO : Repair it. Then go to Step 14.

AK300438

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CONNECTOR: B-34

AB

B-34 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300443

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CONNECTOR: C-51 <M/T>

C-51 (GR)

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HARNESS CONNECTOR:
COMPONENT SIDE

AK300458

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CONNECTOR: C-52 <A/T>

C-52 (GR)

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HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-809

STEP 10. Check connector C-51 at ECM <M/T> or
connector C-52 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 14.

AK300443

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CONNECTOR: C-51 <M/T>

C-51 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300458

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CONNECTOR: C-52 <A/T>

C-52 (GR)

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HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-810

STEP 11. Check the idle air control motor operation using
special tool MB991709.
(1) Remove the idle air control motor.

(2) Connect special tool MB991709 to the idle air control motor.

(All terminals should be connected.)

(3) Use the jumper wires to connect terminal No. 2 of the idle

air control motor connector to the battery (+) terminal.

(4) Check the ensure that the motor operates when the

terminals No. 1 and No. 3 of the idle air control motor
connector are respectively connected to the battery (

−)

terminal using a jumper wire.

• Vibration should be present at each application of volt-

age to test clip combination.

(5) Then. Use jumper wires to connect the terminal 5 of the idle

air control motor connector to the battery (+) terminal.

(6) Check the ensure that the motor operates when the

terminals No. 4 and No. 6 of the idle air control motor
connector are respectively connected to the battery (

−)

terminal using a jumper wire.

• Vibration should be present at each application of volt-

age to test clip combination.

(7) Install the idle air control motor. Refer to Throttle Body

−

Disassembly and Assembly

P.13B-1117

.

Q: Is the idle air control motor operating properly?

YES : Go to Step 12.
NO : Replace the idle air control motor. Then go to Step 14.

AK300438

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CONNECTOR: B-34

AB

B-34 (B)

HARNESS CONNECTOR:
COMPONENT SIDE

AKX01627AB

TERMINAL 2

IAC MOTOR

TERMINAL 5

MB991709

AKX01626