Mitsubishi Outlander GS45X. Manual — part 629

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-339

STEP 6. Using scan tool MB991958, check data list item 15:
Throttle Position Sensor (sub).
(1) Turn the ignition switch to the "ON" position.
(2) Detach the intake air hose at the throttle body.
(3) Disconnect the connector of the throttle position sensor.
(4) Use test harness special tool (MB991658) to connect only

terminals No. 3, No. 4, No. 5, and No. 6.

(5) Set scan tool MB991958 to the data reading mode for item

15, Throttle Position Sensor (sub).

• Output voltage should be 4.0 volts or more when the

throttle valve is fully closed with your finger.

• Output voltage should be 1.0 volt or less when the throt-

tle valve is fully open with your finger.

(6) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

YES : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points

− How to

Cope with Intermittent Malfunctions

P.00-15

.

NO : 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 go to Step 11.

STEP 7. Check harness connector B-10 at ECM for
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 11.

STEP 8. Check for harness damage between throttle
position sensor connector B-08 (terminal No. 5) and ECM
connector B-10 (terminal No. 12).
Q: Is the harness wire in good condition?

YES : Go to Step 9.
NO : Repair it. Then go to Step 11.

STEP 9. Check for open circuit, short circuit to ground and
harness damage between throttle position sensor
connector B-08 (terminal No. 6) and ECM connector B-10
(terminal No. 11).
Q: Is the harness wire in good condition?

YES : Go to Step 10.
NO : Repair it. Then go to Step 11.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-340

STEP 10. Replace the throttle body assembly.
(1) Replace the throttle body assembly.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0222 set?

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 go to Step 11.

NO : The inspection is complete.

STEP 11. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
(1) Turn the ignition switch to the "ON" position.
(2) After the DTC has been deleted, read the DTC again.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0222 set?

YES : Retry the troubleshooting.
NO : The inspection is complete.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-341

DTC P0223: Throttle Position Sensor (sub) Circuit High Input

.

CIRCUIT OPERATION

• A 5-volt power supply is applied on the throttle

position sensor (sub) power terminal (terminal
No. 5) from the ECM (terminal No. 12).

• A voltage that is according to the throttle opening

angle is sent to the ECM (terminal No. 11) from
the throttle position sensor (sub) output terminal
(terminal No. 6).

AK604243

1

2

3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

6

1 2 3 4 5

5 V

12

5

11

13

6

3

THROTTLE POSITION SENSOR (SUB) CIRCUIT

THROTTLE POSITION
SENSOR (SUB)

B-10

HALL IC

AC

B-08

(MU805200)

ENGINE
CONTROL
MODULE

YELLO

W

-RED

YELLO

W

-PINK

YELLO

W

-GRA

Y

AK704102AB

Intake manifold

Connector: B-08

B-08 (B)

AK704090AB

Connector: B-10

B-10 (GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-342

• The ground terminal (terminal No. 3) is grounded

with ECM (terminal No. 13).

.

TECHNICAL DESCRIPTION

• The throttle position sensor (sub) outputs voltage

which corresponds to the throttle valve opening
angle.

• The ECM checks whether the voltage is within a

specified range.

.

DESCRIPTIONS OF MONITOR METHODS

Throttle position sensor (sub) output voltage is out of

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)

• Not applicable

.

DTC SET CONDITIONS

Logic Flow Chart

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• Throttle position sensor (sub) output voltage

should be 4.8 volts or more for 0.3 second.

.

No

No

No

Malfunction

End

Good

Output voltage <= 0.2V

Output voltage >= 4.8V

AK604318

Start

Yes

Yes

Yes

Continuous

failure for 0.3sec