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Mitsubishi Outlander GS45X. Manual - part 559

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-59

CIRCUIT OPERATION

• The intake engine oil control valve power is sup-

plied from the MFI relay (terminal No. 2).

• The ECM controls ground intake engine oil con-

trol valve by turning the power transistor in the
ECM "ON" and "OFF".

TECHNICAL DESCRIPTION

• The intake engine oil control valve changes the

phase angle to operate the MIVEC system in the
advance or the retard side in accordance with
signals from the ECM.

DESCRIPTIONS OF MONITOR METHODS

Intake engine oil control valve circuit current is out of

the specified range.

MONITOR EXECUTION

Continuous

MONITOR EXECUTION CONDITIONS
(Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Camshaft position sensor

• Crankshaft position sensor

• Engine coolant temperature sensor

• Throttle position sensor

• Engine oil control valve

AK704087AB

Connector: A-13

A-13

AK704088

MFI relay

Connector: A-33X

A-33X

AK704143

Intake engine
oil control valve

Connector: B-25

B-25

AK704090AB

Connector: B-10

B-10 (GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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DTC SET CONDITIONS

Logic Flow Chart

Check Conditions

• Ignition switch is "ON" position

• Battery positive voltage is between 10 and 16.5

volts.

• ON duty cycle of the intake engine oil control

valve circuit is higher than 20 percent.

Judgement Criterion

• The ECM terminal current of intake engine oil

control valve circuit is less than 0.1 ampere for 2
seconds.

Check Conditions

• Ignition switch is "ON" position

• Battery positive voltage is between 10 and 16.5

volts.

Judgement Criterion

• The ECM terminal current of intake engine oil

control valve circuit is higher than 2.9 amperes
for 0.1 second.

OBD-II DRIVE CYCLE PATTERN

• Refer to Diagnostic Function − OBD-II Drive

Cycle

− Pattern 20

P.13A-11

AK704777

Start

Yes

Continuous

failure for 2secs

Continuous

failure for 0.1sec

Current < 0.1A

Current > 2.9A

Malfunction

End

Good

Monitoring
conditions

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)

• Intake engine oil control valve failed.

• Open or shorted intake engine oil control valve

circuit, harness damage, or connector damage.

• ECM failed.

DIAGNOSIS

Required Special Tools:

• MB992110: Power Plant ECU Check Harness

STEP 1. Check harness connector B-25 at the intake
engine oil control valve for damage.
Q: Is the harness 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 go to Step 10.

STEP 2. Check the intake engine oil control valve.
(1) Disconnect the intake engine oil control valve connector

B-25.

(2) Measure the resistance between intake engine oil control

valve side connector terminal No. 1 and No. 2.

Standard value: 6.9

− 7.9 ohms [at 20°C (68°F)]

Q: Is the measured resistance between 6.9 and 7.9 ohms

[at 20

°C (68°F)]?

YES : Go to Step 3.
NO : Replace the intake engine oil control valve. Then go

to Step 10.

STEP 3. Measure the power supply voltage at intake
engine oil control valve harness side connector B-25.
(1) Disconnect the connector B-25 and measure at the harness

side.

(2) Turn the ignition switch to the "ON" 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 5.
NO : Go to Step 4.

AK704144

1 2

Engine oil control
valve connector

AK704145

2 1

B-25 harness
connector:
component side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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STEP 4. Check harness connector A-33X at MFI relay for
damage.
Q: Is the harness connector in good condition?

YES : Check harness connector A-13 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 MFI
relay connector A-33X (terminal No. 2) and intake
engine oil control valve connector B-25 (terminal No.
2) because of open circuit or short circuit to ground.
Then go to Step 10.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 10.

STEP 5. Check harness connector B-10 at ECM for
damage.
Q: Is the harness 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 go to Step 10.

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