Mitsubishi Galant 9G. Manual - part 844

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-818

STEP 6. Check for open circuit and short circuit to ground
between generator connector B-116 (terminal No. 4) and
PCM connector B-23 (terminal No. 131).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Then go to Step 8.
NO : Repair it. Then go to Step 8.

AK401058

CONNECTOR: B-116

B-116 (GR)

HARNESS
CONNECTOR:
COMPONENT SIDE

127 126 125 124 123 122 121

133 132 131 130 129 128

140 139 138 137 136 135 134

146 145 144 143 142 141

153 152 151 150 149 148 147

AK303058

HARNESS CONNECTOR:
COMPONENT SIDE

CONNECTOR: B-23

B-23

PCM

AIR CLEANER

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-819

STEP 7. Check for harness damage between generator
connector B-116 (terminal No. 4) and PCM connector B-23
(terminal No. 131).
Q: Is the harness wire in good condition?

YES : Replace the generator. Then go to Step 8.
NO : Repair it. Then go to Step 8.

AK401058

CONNECTOR: B-116

B-116 (GR)

HARNESS
CONNECTOR:
COMPONENT SIDE

127 126 125 124 123 122 121

133 132 131 130 129 128

140 139 138 137 136 135 134

146 145 144 143 142 141

153 152 151 150 149 148 147

AK303058

HARNESS CONNECTOR:
COMPONENT SIDE

CONNECTOR: B-23

B-23

PCM

AIR CLEANER

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-820

STEP 8. 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) Start the engine and run at idle.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0622 set?

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

DTC P0630: Vehicle Identification Number (VIN) Malfunction

TECHNICAL DESCRIPTION

• The Vehicle Identification Number (VIN) is stored

in the PCM by the vehicle manufacturer.

DESCRIPTIONS OF MONITOR METHODS

The PCM checks whether the VIN is being entered

or not.

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

AK303804AB

MB991910

DATA LINK
CONNECTOR

MB991824

MB991827

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-821

DTC SET CONDITIONS
Logic Flow Chart

Check Conditions

• Ignition switch is in "ON" position.

• EEPROM is normal.

Judgement Criteria

• VIN (current) has not been written.

OBD-II DRIVE CYCLE PATTERN

None.

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

• PCM failed.

DIAGNOSIS

Required Special Tools:

• MB991958: Scan tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

END

MALFUNCTION

YES

VIN STORED

DTC & MIL

PREVIOUSLY SET

MONITORING

CONDITIONS

CLEAR DTC & MIL

START

AK401536

YES

GOOD

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