Mitsubishi Outlander GS45X. Manual - part 863

 

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Mitsubishi Outlander GS45X. Manual - part 863

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-385

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 <Circuit continuity 

 open circuit and shorted low>

Logic Flow Chart

.

Check Condition

• Engine is running.

Judgement Criterion

• The supply voltage is 3 volts or less without the 

injector driving for 2 seconds.

.

Good

Malfunction

Injector voltage < = 3V

Start

Continuous

failure for 2secs

End

No

No

Yes

Yes

Yes

No

AK700479

Monitoring

condition

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-386

DTC SET CONDITIONS <Circuit continuity 

 shorted high>

Logic Flow Chart

.

Check Condition

• Engine is running.

Judgement Criterion

• The coil current is 4.5 ampere or more with the 

injector driving for 2 seconds.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function 

− OBD-II Drive Cycle − 

Pattern 22 

P.13B-11

.

.

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

• No. 6 cylinder injector failed.

• Connector damage.

• Harness 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

• MB992110: Power Plant ECU Check Harness

Good

Malfunction

Current >= 4.5A

End

Yes

No

No

No

AK604332

Start

Yes

Yes

Continuous

failure for 2secs

Monitoring
condition

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-387

STEP 1. Using scan tool MB991958, check actuator test 
item 1: No. 6 Injector.

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) Start the engine and run at idle.
(3) Set scan tool MB991958 to the actuator testing mode for 

item 1, No. 6 injector.

(4) Warm up the engine to normal operating temperature: 80

°C 

to 95

°C (176°F to 203°F).

• The idle should become slightly rougher.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the actuator 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 the for harness connector B-115 at No. 6 
cylinder injector and B-10 at the ECM for damage.
Q: Is the harness connector in good condition?

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

Inspection 

P.00E-2

. Then go to Step 7.

STEP 3. Measure the power supply voltage at the injector 
connector B-115.
(1) Disconnect the injector connector B-115 (terminal No. 1) 

and measure at the harness side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 1 and ground.

• Voltage should be battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured resistance battery positive voltage?

YES : Go to Step 4.
NO :  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 injector 
relay connector A-24X (terminal No. 3) and injector 
connector B-115 (terminal No. 1) because of open 
circuit. Then go to Step 7.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

AK700559

1

2

AB

B-115
harness connector:
harness side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-388

STEP 4. Check the No. 6 cylinder injector.
(1) Disconnect the No. 6 cylinder injector connector B-115.
(2) Measure the resistance between injector side connector 

terminal No. 1 and No. 2.

 Standard value: 10.5 

 13.5 ohms [at 20°C (68°F)]

Q: Is the measured resistance between 10.5 and 13.5 ohms 

[at 20

°C (68°F)]?

YES : Go to Step 5.
NO :  Replace the No. 6 cylinder injector. Then go to Step 7.

STEP 5. Check for harness between the injector connector 
B-115 and the ECM connector B-10.
(1) Disconnect the injector connector B-115 and the ECM 

connector B-10.

(2) Measure the resistance between injector connector B-115 

(terminal No. 2) and the ECM connector B-10 (terminal No. 
51).

• Should be less than 2 ohms.

(3) Measure the continuity between the intermediate connector 

B-115 (terminal No. 2) and ground.

• Not continuity.

Q: Is the connector wire in good condition?

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

Inspection 

P.00E-2

. Then go to Step 7.

AK700204

1 2

AB

Injector side
connector

1

2

AK700558AB

B-115
harness connector:
component side

 

 

 

 

 

 

 

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