Mitsubishi Galant (2004+). Manual - part 834

 

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Mitsubishi Galant (2004+). Manual - part 834

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-153

STEP 7. Check the continuity at engine coolant 
temperature sensor harness side connector B-104.
(1) Disconnect the connector B-104 and measure at the 

harness side.

(2) Check for the continuity between terminal No. 2 and 

ground.

• Should be less than 2 ohms.

Q: Does continuity exist?

YES : Go to Step 10.
NO :  Go to Step 8.

STEP 8. Check harness connector B-21 at PCM for 
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 9.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 11.

AK303815

1

2

AB

CONNECTOR: B-104

B-104 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK000235

B-104 HARNESS
CONNECTOR: 
COMPONENT SIDE

1

2

AQ

AK303018

55

56

54 53 52 51

57

62 61 60 59 58

63

69 68 67 66 65 64

70

75 74 73 72 71

76

82 81 80 79 78 77

83

CONNECTOR: B-21

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

B-21 (B)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-154

STEP 9. Check for open circuit between engine coolant 
sensor connector B-104 (terminal No. 2) and PCM 
connector B-21 (terminal No. 69).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Then go to Step 11.
NO :  Repair it. Then go to Step 11.

AK303815

1

2

AB

CONNECTOR: B-104

B-104 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK303018

55

56

54 53 52 51

57

62 61 60 59 58

63

69 68 67 66 65 64

70

75 74 73 72 71

76

82 81 80 79 78 77

83

CONNECTOR: B-21

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

B-21 (B)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-155

STEP 10. Check the engine coolant temperature sensor.
(1) Disconnect the engine coolant temperature sensor 

connector B-104.

(2) Remove the engine coolant temperature sensor.

(3) With the temperature sensing portion of engine coolant 

temperature sensor immersed in hot water, check 
resistance.

Standard value:

14 

 17 k [at 20°C (4°F)]

5.1 

 6.5 k [at 0°C (32°F)]

2.1 

 2.7 k [at 20°C (68°F)]

0.9 

 1.3 k [at 40°C (104°F)]

0.48 

 0.68 k [at 60°C (140°F)]

0.26 

 0.36 k [at 80°C (176°F)]

(4) Apply 3M

 AAD part number 8731 or equivalent on the 

screw section of the engine coolant temperature sensor.

(5) Install the engine coolant temperature sensor, and tighten 

to the specified torque.

Tightening torque: 30 

± 9 Nm (22 ± 7 ft-lb)

Q: Is the measured resistance at the standard value?

YES : Replace the PCM. Then go to Step 11.
NO :  Replace the engine coolant temperature sensor. Then 

go to Step 11.

STEP 11. 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 − Procedure 6 − 

Other Monitor 

P.13A-5

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0118 set?

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

AK303815

1

2

AB

CONNECTOR: B-104

B-104 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AKX01622

AKX01623 AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-156

DTC P0122: Throttle Position Sensor (main) Circuit Low Input

CAUTION

If DTC P0122 has been set, TCL related DTC 
U1120 is also set. After P0122 has been diag-
nosed, don't forget to erase DTC U1120.

.

6

1 2 3 4 5

100

99

92

91

93 94 95

96 97 98

101 102 103 104

105 106 107 108

109 110 111 112 113

AK303816

YELLO

W

-RED

RED-WHITE

BLA

CK-WHITE

B-06

5 V

94

5

THROTTLE POSITION
SENSOR (MAIN)

HALL IC

POWERTRAIN CONTROL MODULE (PCM)

99

95

4

3

Throttle Position Sensor (main) Circuit

B-22

AK303817AB

CONNECTOR: B-06

B-06 (B)

THROTTLE
ACTUATOR
CONTROL
MOTOR

THROTTLE 
POSITION 
SENSOR

AK303043

CONNECTOR: B-22

B-22 (B)

PCM

AB

AIR CLEANER

 

 

 

 

 

 

 

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