Mitsubishi Outlander GS45X. Manual - part 679

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-539

DTC P0602: Control Module Programming Error

.

TECHNICAL DESCRIPTION

• The ECM performs proper engine control based 

on vehicle information entered.

• A vehicle identification number (VIN) is entered at 

a plant before shipment. This diagnosis code 
occurs when no vehicle information is entered 
during ECM replacement.

.

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.

Judgment Criterion

• Vehicle information is not entered into the ECM.

End

Malfunction

No

No

Coding completed

DTC & MIL

previously set

Clear DTC & MIL

AK604358

Good

No

Start

Yes

Yes

Yes

Monitoring
conditions

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-540

.

OBD-II DRIVE CYCLE PATTERN

None.

.

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

• 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

STEP 1. Using scan tool MB991958, read the diagnostic 
trouble code (DTC).

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) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0602 set?

YES : Replace the ECM with one into which vehicle 

information is correctly entered.

NO :  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

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DTC P0604: Internal Control Module Random Access Memory (RAM) Error

.

TECHNICAL DESCRIPTION

Monitors the computation function of the ECM peri-
odically.

.

DTC SET CONDITIONS

Check Condition

• Ignition switch is "ON" position.

Judgment Criterion

• All RAM data of ECM are defect.

or

• RAM data (engine) is defect.

.

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

• ECM failed.

DIAGNOSIS

Required Special Tool:

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

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-541

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

STEP 1. Using scan tool MB991958, read the diagnostic 
trouble code (DTC).

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) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0604 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

.

NO :  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

.

DTC P0606: Engine Control Module Main Processor Malfunction

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

AK704088

MFI relay

AB

Connector: A-33X

A-33X

AK704097AB

Connector: B-11

B-11 (GR)

AK900282 AB

ETACS-ECU

Connector: C-304

C-304

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-542

.

ENGINE CONTROL MODULE MAIN 
PROCESSOR MALFUNCTION CIRCUIT

• Refer to Inspection Procedure 22 − Power Supply 

System and Ignition Switch-IG System 

P.13A-777

.

.

CIRCUIT OPERATION

• Refer to Inspection Procedure 22 − Power Supply 

System and Ignition Switch-IG System 

P.13A-777

.

.

TECHNICAL DESCRIPTION

• Throttle actuator control processor checks the 

ECM for abnormal conditions.

.

DESCRIPTIONS OF MONITOR METHODS

No watch dog pulse is detected.

.

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

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• No surveillance pulse signals is inputted for 0.5 

second.

.

OBD-II DRIVE CYCLE PATTERN

None.

.

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

• MFI relay failed.

• Shorted MFI relay circuit or connector damage.

• Open or shorted ignition switch-IG circuit, har-

ness damage or connector damage.

• ECM failed. 

DIAGNOSIS

Required Special Tool:

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

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

STEP 1. Check the battery.
Refer to GROUP 54A, Battery 

− On-vehicle Service − Battery 

Test 

P.54A-9

.

Q: Are there any abnormalities?

YES : Replace the battery. Then go to Step 11.
NO :  Go to Step 2.

STEP 2. Check harness connector B-11 at ECM 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 11.