Mitsubishi Galant (2004+). Manual - part 833

 

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Mitsubishi Galant (2004+). Manual - part 833

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-149

STEP 3. Measure the sensor supply voltage at engine 
coolant temperature sensor harness side connector B-104.
(1) Disconnect the connector B-104 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 between 4.5 and 4.9 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.5 and 4.9 volts?

YES : Go to Step 7.
NO :  Go to Step 4.

AK303815

1

2

AB

CONNECTOR: B-104

B-104 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK000234 AR

2 1

B-104 HARNESS 
CONNECTOR: 
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-150

STEP 4. Measure the sensor supply voltage at PCM 
connector B-22 by using power plant ECU check harness 
special tool MB991923.
(1) Do not disconnect the all PCM connectors and connect 

power plant ECU check harness special tool MB991923 
between the separated connectors.

(2) Disconnect the engine coolant temperature sensor 

connector B-104.

(3) Turn the ignition switch to the "ON" position.

AK303016

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

CONNECTOR: B-22

B-22 (B)

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-151

(4) Measure the voltage between terminal No. 93 and ground.

• Voltage should be between 4.5 and 4.9 volts.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.5 and 4.9 volts?

YES : Go to Step 5.
NO :  Go to Step 6.

AK202956

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

AB

POWER PLANT ECU 
CHECK HARNESS CONNECTOR

MB991923

PCM

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

AK203047AB

POWER PLANT ECU 
CHECK HARNESS 
CONNECTOR 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-152

STEP 5. Check harness connector B-22 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Repair harness wire between engine coolant 

temperature sensor connector B-104 (termial No. 1) 
and PCM connector B-22 (termial No. 93) because of 
open circuit. Then go to Step 11.

NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 11.

STEP 6. Check harness connector B-22 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Replace the PCM. Then go to Step 11.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 11.

AK303016

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

CONNECTOR: B-22

B-22 (B)

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

AK303016

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

CONNECTOR: B-22

B-22 (B)

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

 

 

 

 

 

 

 

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