Mitsubishi Outlander GS45X. Manual — part 683
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-555
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 the diagnostic trouble code other than P061C set?
YES : Refer to, Diagnostic Trouble Code Chart
NO : Go to Step 2.
STEP 2. 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 P061C 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
or GROUP 42C, Diagnosis
− ID
Codes Registration Judgment Table <Vehicles with
WCM>
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
.
AK700568AB
MB991824
MB991827
MB991910
Data link
connector
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-556
STEP 3. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle Pattern 23
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P061C set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
DTC P061F: Internal Control Module Throttle Actuator Controller Performance Problem
.
TECHNICAL DESCRIPTION
• To judge whether fail-safe control can be per-
formed, check that power supply to the throttle
actuator control motor circuit can be stopped by
turning the throttle actuator control motor relay to
OFF position momentarily.
.
DTC SET CONDITIONS
Check Condition
• Ignition switch is "ON" position.
Judgment Criterion
• Power supply to the throttle actuator control
motor cannot be shut down (though power supply
is stopped).
.
TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)
• Throttle actuator control motor relay circuit failed.
• 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
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-557
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 the DTC P061F set?
YES : Go to Step 2.
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
.
STEP 2. 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 P061F set?
YES : Refer to DTC P0657
− Throttle actuator control motor
relay circuit malfunction
.
NO : Replace the ECM. When the ECM is replaced,
register the ID code. Refer to GROUP 42B, Diagnosis
− ID Code Registration Judgment Table <Vehicles
or GROUP 42C, Diagnosis
− ID
Codes Registration Judgment Table <Vehicles with
WCM>
AK700568AB
MB991824
MB991827
MB991910
Data link
connector
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-558
DTC P0620: Generator Control Circuit
.
CIRCUIT OPERATION
• When the ignition switch is turned ON, the current
should be supplied from the ECM (terminal No.
62) to the generator (terminal No. 3). When the
engine starts under those conditions, the genera-
tor should generate currents.The generated volt-
age is applied to the ECM (terminal No. 62) from
the generator (terminal No. 3). This allows the
ECM to detect that the electrical generation
begins.
• The ECM (terminal No. 60) controls the generator
output voltage by turning the power transistor in
the unit ON/OFF according to the electrical load.
.
TECHNICAL DESCRIPTION
The ECM Compares the battery voltage with the volt-
age generated from the generator to check whether
the electrical generation is normal.
.
DESCRIPTION OF MONITOR METHOD
The difference exceeds the specified value between
the target generation voltage and the battery backup
voltage.
.
DTC SET CONDITION
Check Conditions
• Ignition switch is "ON" position.
• The engine speed is 600 r/min or more.
• The battery backup voltage is 13.5 volts or more.
• The G-terminal duty ratio is 80 percent or less
and the malfunction of DTC P0622 is not
detected.
Judgement Criterion
• For 30 seconds, the final target generation volt-
age subtracted from the battery backup voltage
equals 0.8 volt or more.
or
• For 30 seconds, the battery backup voltage sub-
tracted from the final target generation voltage
equals 1.3 volts or more.
.
PROBABLE CAUSES
• Battery failed.
• Drive belt failed.
• Open/shorted generator G-terminal circuit, or
connector damage.
• Open/shorted generator L-terminal circuit, or con-
nector damage.
• Battery backup circuit harness damage or con-
nector damage.
• Generator failed.
• ECM failed.
DIAGNOSIS PROCEDURE
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: USB Cable
• MB991910: Main Harness A
• MB992110: Power Plant ECU Check Harness
AK704151AB
Connector: B-10, B-11
B-10 (GR)
B-11 (GR)
AK704140
AB
Connector: B-118
B-118 (GR)
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