Mitsubishi Outlander GS45X. Manual — part 983

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-865

73

MFI relay (power
supply)

Ignition switch: "LOCK" (OFF)

B+

Ignition switch: "ON"

1 V or less

74

Accelerator pedal
position sensor
(main)

Ignition switch:
"ON"

Release the accelerator
pedal

0.9

− 1.1 V

Depress the accelerator
pedal fully

4 V or more

75

Power supply
voltage applied to
accelerator pedal
position sensor
(main)

Ignition switch: "ON"

4.9

− 5.1 V

77

Accelerator pedal
position sensor
(sub)

Ignition switch:
"ON"

Release the accelerator
pedal

0.4

− 0.6 V

Depress the accelerator
pedal fully

2 V or more

78

Power supply
voltage applied to
accelerator pedal
position sensor
(sub)

Ignition switch: "ON"

4.9

− 5.1 V

82

Power supply

Ignition switch: "ON"

B+

84

Throttle actuator
control motor relay

Ignition switch: "ON"

→ "LOCK" (OFF)

1 V or less

→ B+

→ 1 V or less

87

Mass airflow sensor Engine: revving

Voltage increases
in response to
revving

89

Intake air
temperature sensor

Ignition switch:
"ON"

When intake air temperature
is

−20°C (−4°F)

3.8

− 4.4 V

When intake air temperature
is 0

°C (32°F)

3.2

− 3.8 V

When intake air temperature
is 20

°C (68°F)

2.3

− 2.9 V

When intake air temperature
is 40

°C (104°F)

1.5

− 2.1 V

When intake air temperature
is 60

°C (140°F)

0.8

− 1.4 V

When intake air temperature
is 80

°C (176°F)

0.4

− 1.0 V

92

Ignition switch-IG

Ignition switch: "ON"

B+

96

Fuel pump relay

Ignition switch: "ON"

B+

Engine: idling

1.0 V or less

102

A/C compressor
clutch relay

• Engine: idling

• A/C switch: OFF → ON (A/C compressor is

operating)

B+

→ 1 V or less

as A/C clutch
cycles

TERMINAL
NO.

INSPECTION ITEM INSPECTION CONDITION (ENGINE

CONDITION)

NORMAL
CONDITION

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-866

104

Backup power
supply

Ignition switch: "LOCK" (OFF)

B+

105

Ignition switch-ST

Ignition switch: cranking

8 V or more

106

Starter relay

Engine: cranking

B+

Engine: idling

1 V or more

112

Fuel tank differential
pressure sensor

• Ignition switch: "ON"

• Fuel cap removal

1.5

− 3.5 V

114

Power supply
voltage applied to
fuel tank differential
pressure sensor

Ignition switch: "ON"

4.9

− 5.1 V

115

Fuel tank
temperature sensor

Ignition switch:
"ON"

When fuel tank temperature
is 0

°C (32°F)

2.7

− 3.1 V

When fuel tank temperature
is 20

°C (68°F)

2.1

− 2.5 V

When fuel tank temperature
is 40

°C (104°F)

1.6

− 2.0 V

When fuel tank temperature
is 80

°C (176°F)

0.8

− 1.2 V

117

Evaporative
emission ventilation
solenoid

Ignition switch: "ON"

B+

Carry out the actuator test to drive the solenoid
valve.

1 V or less
(Approximately 6
seconds)

TERMINAL
NO.

INSPECTION ITEM INSPECTION CONDITION (ENGINE

CONDITION)

NORMAL
CONDITION

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-867

TERMINAL RESISTANCE AND CONTINUITY CHECK

AK700420

82 81 80 79 78 77 76 75 74 73 72 71

94 93 92 91 90 89 88 87 86 85 84 83

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AB

B-10

B-11

ECM Harness side Connector Terminal Arrangement

TERMINAL
NO.

INSPECTION ITEM

NORMAL CONDITION (INSPECTION
CONDITION)

1

− 82

Engine oil control valve

6.9

− 7.9 Ω [at 20°C (68°F)]

15

− 16

Throttle actuator control motor

0.3

− 80 Ω [at 20°C (68°F)]

26

− 27

Engine coolant temperature sensor

14

− 17 kΩ [when engine coolant temperature

is

−20°C (−4°F)]

5.1

− 6.5 kΩ [when engine coolant temperature

is 0

°C (32°F)]

2.1

− 2.7 kΩ [when engine coolant temperature

is 20

°C (68°F)]

0.9

− 1.3 kΩ [when engine coolant temperature

is 40

°C (104°F)]

0.48

− 0.68 kΩ [when engine coolant

temperature is 60

°C (140°F)]

0.26

− 0.36 kΩ [when engine coolant

temperature is 80

°C (176°F)]

31

− 82

EGR valve (A)

20

− 24 Ω [at 20°C (68°F)]

32

− 82

EGR valve (B)

47

− 82

EGR valve (C)

48

− 82

EGR valve (D)

33

− 82

Right bank heated oxygen sensor heater
(front)

4.5

− 8.0 Ω [at 20°C (68°F)]

34

− 82

Left bank heated oxygen sensor heater
(front)

4.5

− 8.0 Ω [at 20°C (68°F)]

35

− 82

Left bank heated oxygen sensor heater
(rear)

11

− 18 Ω [at 20°C (68°F)]

37

− 82

Evaporative emission purge solenoid

22

− 26 Ω [at 20°C (68°F)]

49

− 82

Right bank heated oxygen sensor heater
(rear)

11

− 18 Ω [at 20°C (68°F)]

81

− Body

ground

ECM ground

Continuity (2

Ω or less)

93

− Body

ground
82

− 117

Evaporative emission ventilation solenoid

17

− 21 Ω [at 20°C (68°F)]

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-868

INSPECTION PROCEDURE USING AN OSCILLOSCOPE

M1131154501988

CAMSHAFT POSITION SENSOR AND
CRANKSHAFT POSITION SENSOR

Required Special Tools:

• MB991709: Test Harness

• MB992110: Power Plant ECU Check Harness

.

Measurement Method

1. Disconnect the camshaft position sensor connector, and

connect the test harness special tool (MB991709) between
the separated connector (All terminals should be
connected).

2. Connect the oscilloscope probe to camshaft position sensor

connector terminal No. 3.

3. Disconnect the crankshaft position sensor connector, and

connect the test harness special tool (MB991709) between
the separated connector.

4. Connect the oscilloscope probe to crankshaft position

sensor connector terminal No. 3.

.

88

− 89

Intake air temperature sensor

13

− 17 kΩ [when intake air temperature is

−20°C (−4°F)]
5.3

− 6.7 kΩ [when intake air temperature is

0

°C (32°F)]

2.3

− 3.0 kΩ [when intake air temperature is

20

°C (68°F)]

1.0

− 1.5 kΩ [when intake air temperature is

40

°C (104°F)]

0.56

− 0.76 kΩ [when intake air temperature is

60

°C (140°F)]

0.30

− 0.45 kΩ [when intake air temperature is

80

°C (176°F)]

TERMINAL
NO.

INSPECTION ITEM

NORMAL CONDITION (INSPECTION
CONDITION)

AK700325

3

2

1

AB

Camshaft position
sensor connector

Oscilloscope

MB991709

AK700326

3

2

1

AB

Crankshaft position
sensor connector

Oscilloscope

MB991709