Mitsubishi L200. Manual — part 195

TROUBLESHOOTING

DIESEL FUEL

13A-576

4. After repair or replacement, recheck with the

voltmeter to confirm that the repair has corrected
the problem.

Engine-ECU Connector Terminal Arrangement

AK800887

91 92 93 94 95 96 97 98

99

100

111

110

101

103

102

105

104

106 107

109

108

113

112

121

120

115

114

123

122

116
124

117

125

119

118

127

126

128 129 130

1

2

3

4

5 6 7 8 9

10 1112 13 14 15 16 17 18 19 20 21 22 23 24

25 26

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

43 44 45 46 47 48

73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96

101 102

103104 105 106107 108109 110 111112 113 114115

118119 120 121122 123124 125126127 128 129130

131132 133 134135 136137 138139140 141142 143

146147 148 149150 151152 153154155 156 157158

117

145

116

144

AB

D-215

D-213

Engine-ECU connector

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

6

PTC heater control
signal <Vehicles
with PTC heater>

• Heater temperature setting: Maximum

• Blower fan: ON

System voltage

Other than the above

1 V or less

8

A/C switch

Engine: Idle speed
(after warning up)

A/C switch: OFF

1 V or less

A/C switch: ON (A/C
compressor in
operation)

System voltage

9

Back-up lamp shift
switch
<M/T>

Ignition switch: ON

Shift position: Reverse

System voltage

Shift position: Except
reverse

1 V or less

10

Rear window
defogger relay
<Euro5>

Engine: Idling after
warning up the
engine

Rear window defogger:
OFF

1 V or less

Rear window defogger:
ON

System voltage

11

1st and 2nd shift
switch
<M/T>

Ignition switch: ON

Shift position: 1st

System voltage

Shift position: Except
1st

1 V or less

12

A/C load signal
<Vehicles with
automatic A/C>

• Engine: Idling

after warning up
the engine

• A/C switch: ON

A/C compressor clutch
not in operation

1 V or less

A/C compressor clutch
in operation

1 V or less

⇔ System

voltage (Changes
repeatedly)

13

4LLC switch <M/T-
high power engine
vehicle>

Ignition switch: ON

Shift position: Except
4LLC

1 V or lower

Shift position: 4LLC

System voltage

17

Variable geometry
solenoid control
valve <Euro5>

Ignition switch: ON

System voltage

Engine: Acceleration

Changed in accordance
with amount of depression
of accelerator pedal

TROUBLESHOOTING

DIESEL FUEL

13A-577

19

A/C compressor
relay

Engine: Idle speed
(after warning up)

A/C switch: OFF

System voltage

A/C switch: ON (A/C
compressor in
operation)

1 V or less

20

Glow plug relay
<Except Euro5>

Ignition switch: OFF
→ ON

Engine coolant
temperature: lower than
60

°C

1 V or less

→ System

voltage (after several
seconds have elapsed)

Engine coolant
temperature: higher
than 60

°C

System voltage

21

Condenser fan relay
<Vehicles with A/C
condenser fan>

Engine: Idling after
warming up the
engine

A/C switch: OFF

System voltage

A/C switch: ON

1 V or less

⇔ System

voltage (Changes
repeatedly)

22

Glow lamp

• Ignition switch: OFF → ON

• Engine coolant temperature: lower than

60

°C

1 V or lower

→ System

voltage (after several
seconds have elapsed)

36

EGR gas
temperature sensor
<Euro5>

Engine: Idling after
warming up the
engine

Intake air temperature:
20

°C

4.2

− 4.6 V

Intake air temperature:
50

°C

3.7

− 4.1 V

Intake air temperature:
100

°C

2.7

− 3.1 V

Intake air temperature:
200

°C

1.2

− 1.5 V

Intake air temperature:
400

°C

0.3

− 0.4 V

37

Manifold absolute
pressure sensor

Ignition switch: ON

0.7

− 1.2 V

Engine: Acceleration

Increases

38

No. 2 intake air
temperature sensor
<Except Euro5>

Ignition switch: ON

Intake air temperature:
−20 °C

4.0

− 4.6 V

Intake air temperature:
0

°C

3.1

− 3.7 V

Intake air temperature:
20

°C

2.1

− 2.7 V

Intake air temperature:
40

°C

1.2

− 1.8 V

Intake air temperature:
60

°C

0.6

− 1.2 V

Intake air temperature:
80

°C

0.3

− 0.9 V

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

TROUBLESHOOTING

DIESEL FUEL

13A-578

39

Battery temperature
sensor <Euro5>

Ignition switch: ON

Battery temperature
ambient air
temperature:

−20 °C

3.9

− 4.5 V

Battery temperature
ambient air
temperature: 0

°C

3.2

− 3.8 V

Battery temperature
ambient air
temperature: 20

°C

2.3

− 2.9 V

Battery temperature
ambient air
temperature: 40

°C

1.4

− 2.0 V

Battery temperature
ambient air
temperature: 60

°C

0.7

− 1.3 V

Battery temperature
ambient air
temperature: 80

°C

0.3

− 0.9 V

40

Throttle position
sensor

• Remove the

intake air hose at
the throttle body

• Disconnect the

connector of the
electronic-
controlled throttle
valve

• With the special

tool test harness
(MB991658)
bridge only the
mating terminals
of No. 1, No. 2,
and No. 4 of the
disconnected
connectors

• Ignition switch:

ON (engine
stopped)

Fully close the throttle
valve with your finger

0.3

− 0.7 V

Fully open the throttle
valve with your finger

4.0 V or more

43

PTC heater relay 1
<Vehicles with PTC
heater>

• Engine coolant temperature: lower than

75

°C

• Heater temperature setting: Maximum

• Blower fan: ON

• 2 seconds later after the engine has start

up

1 V or less

Other than the above

System voltage

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

TROUBLESHOOTING

DIESEL FUEL

13A-579

44

PTC heater relay 2
<Vehicles with PTC
heater>

• Engine coolant temperature: lower than

75

°C

• Heater switch (warm up switch) is ON or

vehicle speed is 20 km/h or more

• Blower fan: ON

• Heater temperature setting: Maximum

• 2 seconds later after the engine has start

up

• The PTC heater 1 has been ON

continuously 45 seconds or more

1 V or lower

Other than the above

System voltage

46

Engine check lamp Ignition switch: LOCK (OFF)

→ ON

1 V or lower

→ System

voltage (after 5 seconds
have elapsed)

47

DPF lamp

Ignition switch: LOCK (OFF)

→ ON

1 V or lower

→ System

voltage (after 5 seconds
have elapsed)

55

Fuel temperature
sensor

Ignition switch: ON

Fuel temperature:

−20

°C

3.9

− 4.5 V

Fuel temperature: 0

°C 3.1 − 3.7 V

Fuel temperature: 20

°C 2.1 − 2.7 V

Fuel temperature: 40

°C 1.2 − 1.8 V

Fuel temperature: 60

°C 0.6 − 1.2 V

Fuel temperature: 80

°C 0.2 − 0.8 V

56

Exhaust differential
pressure sensor
<Euro5>

• Remove the

pressure hoses,
which are
connected to
each end of the
exhaust
differential
pressure sensor.

• Ignition switch:

ON

Leave each end open.

0.5

− 1.5 V

Connect a manual
pump (pressure-
application type) to the
nipple on one side, and
apply pressure.

Changes depending on
the pressure

57

Exhaust gas
recirculation
position sensor

Engine: Idling (after warning up)

2.0 V or more

Engine: 3,500 r/min (after warning up)

1.5 V or less

58

No. 1 exhaust gas
temperature sensor
<Euro5>

Engine: Idling after
warming up the
engine

Exhaust gas
temperature: 200

°C

4.0

− 4.6 V

Exhaust gas
temperature: 400

°C

2.4

− 3.0 V

Exhaust gas
temperature: 600

°C

1.2

− 1.8 V

Exhaust gas
temperature: 800

°C

0.5

− 1.1 V

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition: