Mitsubishi Outlander GS45X. Manual - part 595

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-203

DTC SET CONDITIONS
Logic Flow Chart

.

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• Throttle position sensor (main) output voltage 

should be 4.8 volts or more for 0.3 second.

.

OBD-II DRIVE CYCLE PATTERN

None.

.

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

• Throttle position sensor failed.

• Open or shorted throttle position sensor (main) 

circuit, harness damage, or connector damage.

• ECM failed. 

DIAGNOSIS

Required Special Tools:

• MB991958: Scan tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

• MB991658: Test Harness 

No

No

No

Malfunction

End

Good

Output voltage <= 0.2V

Output voltage >= 4.8V

AK604318

Start

Yes

Yes

Yes

Continuous

failure for 0.3sec

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-204

STEP 1. Using scan tool MB991958, check data list item 13: 
Throttle Position Sensor (main).

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Detach the intake air hose at the throttle body.
(4) Disconnect the connector of the throttle position sensor.
(5) Use test harness special tool (MB991658) to connect only 

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

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

13, Throttle Position Sensor (main).

• Output voltage should be between 0.3 and 0.7 volt when 

the throttle valve is fully closed with your finger.

• Output voltage should be 4.0 volts or more when the 

throttle valve is fully open with your finger.

(7) 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 :  Go to Step 2.

STEP 2. Check harness connector B-08 at throttle position 
sensor for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 3.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 14.

STEP 3. Measure the sensor supply voltage at throttle 
position sensor harness side connector B-08.
(1) Disconnect the connector B-08 and measure at the harness 

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 5 and ground.

• Voltage should be between 4.9 and 5.1 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q:  Is the measured voltage between 4.9 and 5.1 volts?

YES : Go to Step 6.
NO :  Go to Step 4.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

1

6 5 4 3 2

AK203049

B-08 harness 
connector: 
component side

AF

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-205

STEP 4. Check harness connector B-10 at ECM for 
damage.
Q: Is the harness 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 go to Step 14.

STEP 5. Check for open circuit and short circuit to ground 
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 14.

STEP 6. Check the continuity at throttle position sensor 
harness side connector B-08.
(1) Disconnect the connector B-08 and measure at the harness 

side.

(2) Measure the continuity between terminal No. 3 and ground

• Continuity (2 ohms or less)

Q: Does continuity exist?

YES : Go to Step 10.
NO :  Go to Step 7.

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 14.

STEP 8. Check for open circuit and harness damage 
between throttle position sensor connector B-08 (terminal 
No. 3) and ECM connector B-10 (terminal No. 13).
Q: Is the harness wire in good condition?

YES : Go to Step 9.
NO :  Repair it. Then go to Step 14.

1

6 5 4 3 2

AK203051

B-08 harness 
connector: 
component side

AG

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-206

STEP 9. Using scan tool MB991958, check data list item 13: 
Throttle Position Sensor (main).
(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 

13, Throttle Position Sensor (main).

• Output voltage should be between 0.3 and 0.7 volt when 

the throttle valve is fully closed with your finger.

• Output voltage should be 4.0 volts or more when the 

throttle 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 14.

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

STEP 11. 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 12.
NO :  Repair it. Then go to Step 14.

STEP 12. Check for open circuit, short circuit to ground 
and harness damage between throttle position sensor 
connector B-08 (terminal No. 4) and ECM connector B-10 
(terminal No. 10).
Q: Is the harness wire in good condition?

YES : Go to Step 13.
NO :  Repair it. Then go to Step 14.