Mitsubishi L200. Manual — part 196

TROUBLESHOOTING

DIESEL FUEL

13A-580

59

No. 2 exhaust gas
temperature sensor
(catalyst
temperature)
<Euro5>

Engine: Idling after
warming up the
engine

Catalyst temperature:
200

°C

4.0

− 4.6 V

Catalyst temperature:
400

°C

2.4

− 3.0 V

Catalyst temperature:
600

°C

1.2

− 1.8 V

Catalyst temperature:
800

°C

0.5

− 1.1 V

60

No. 3 exhaust gas
temperature sensor
(DPF temperature)
<Euro5>

Engine: Idling after
warming up the
engine

DPF temperature: 200
°C

4.0

− 4.6 V

DPF temperature: 400
°C

2.4

− 3.0 V

DPF temperature: 600
°C

1.2

− 1.8 V

DPF temperature: 800
°C

0.5

− 1.1 V

62

No. 1 intake air
temperature sensor

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

0.2

− 0.8 V

63

Engine coolant
temperature sensor

Ignition switch: ON

Engine coolant
temperature:

−20 °C

4.4

− 4.9 V

Engine coolant
temperature: 0

°C

4.4

− 4.6 V

Engine coolant
temperature: 20

°C

3.3

− 3.9 V

Engine coolant
temperature: 40

°C

2.4

− 3.0 V

Engine coolant
temperature: 60

°C

1.5

− 2.1 V

Engine coolant
temperature: 80

°C

0.9

− 1.5 V

64

Rail pressure
sensor

Engine: Idling (after warning up)

1.15

− 1.75 V

66

Camshaft position
sensor

Engine: Cranking

0.1

− 3.0 V*

Engine: Idling

0.5

− 1.5 V*

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

TROUBLESHOOTING

DIESEL FUEL

13A-581

67

Crank angle sensor Engine: Cranking

1.5

− 4.5 V*

Engine: Idling

2.5

− 3.5 V*

68

Crank angle sensor
power supply

Ignition switch: ON

4.9

− 5.1 V

69

Camshaft position
sensor power
supply

Ignition switch: ON

4.9

− 5.1 V

70

Rail pressure
sensor power
supply

Ignition switch: ON

4.9

− 5.1 V

71

Exhaust gas
recirculation
position sensor
power supply

Ignition switch: ON

4.9

− 5.1 V

72

Manifold absolute
pressure sensor
power supply

Ignition switch: ON

4.9

− 5.1 V

93

Throttle position
sensor power
supply

Ignition switch: ON

4.9

− 5.1 V

94

Exhaust differential
pressure sensor
power supply
<Euro5>

Ignition switch: ON

4.9

− 5.1 V

101

Battery

Ignition switch: ON

System voltage

102
103

Backup power
supply

Ignition switch: "LOCK" (OFF)

System voltage

104

Ignition switch-IG

Ignition switch: ON

System voltage

110

Fuel filter pressure
switch <Vehicles for
Russia and
Morocco>

Engine: Idling (after warning up)

System voltage

• Engine: Acceleration

• Squeeze the fuel hose with one's fingers at

the inlet side of the fuel filter.

1 V or less

111

Ignition switch-ST

Engine: Cranking

System voltage

114

Throttle valve
control servo
(positive)

Engine: Stopped from idling speed

Voltage changed for few
seconds

115

Exhaust gas
recirculation motor
(positive)

Engine: Idling (after warning up)

1

− 3 V*

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

1.0 V or less

118

Engine control relay Ignition switch: "LOCK" (OFF)

System voltage

Ignition switch: ON

1 V or less

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

TROUBLESHOOTING

DIESEL FUEL

13A-582

120

Glow control unit
<Euro5>

Engine: Idling

Engine coolant
temperature: lower than
40

°C

System voltage

Engine coolant
temperature: lower than
80

°C

1 V or less

121

Alternator G
terminal <Euro5>

• Engine: Idle operation after warm-up

• Head lamp switch: OFF → ON

• Rear window defogger switch: OFF → ON

Voltage increase

125

Blower switch
<Euro5>

Engine Idle speed
(after warning up)

Blower fan: OFF

1 V or less

Blower fan: ON

System voltage

126

Glow diagnostic
signal <Euro5>

Engine: Idling

Engine coolant
temperature: lower than
40

°C

System voltage

Engine coolant
temperature: lower than
80

°C

1 V or less

127

Power steering fluid
pressure switch

Engine: Idling

When steering wheel is
stationary

System voltage

When steering wheel is
turned

1.0 V or less

129

Throttle valve
control servo
(negative)

Engine: Stopped from idling speed

Voltage changed for few
seconds

131

Suction control
valve (positive)

Engine: Idling

5

− 6 V*

Engine: Acceleration

Decreases

134

Accelerator pedal
position sensor
(sub) power supply

Ignition switch: ON

4.9

− 5.1 V

135

Accelerator pedal
position sensor
(sub)

Ignition switch: ON

Release the accelerator
pedal

0.2

− 0.8 V

Depress the accelerator
pedal fully

2.0 V or more

138

Battery current
sensor <Euro5>

The battery is being discharged.

• Engine: Cranking

The value changes by the
value less than 3.5 V.

The battery is being charged.

• Leave the ignition switch being in the ON

position for several minutes, and then after
the engine start.

The value changes by the
value more than 3.5 V

*2

140

Air flow sensor

Engine: Gradually increase the speed

Voltage increase

141

Vehicle speed
sensor

• Ignition switch: ON

• Move the vehicle forward slowly

0

⇔ 5 V (Changes

repeatedly)

148

Battery current
sensor power
supply <Euro5>

Ignition switch: ON

4.9

− 5.1 V

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition:

TROUBLESHOOTING

DIESEL FUEL

13A-583

NOTE: *:The average voltage is shown when an
analog voltmeter is used (because the average volt-
age might not be shown stably when digital voltmeter
is used).

CHECK CHART FOR RESISTANCE AND
CONTINUITY BETWEEN TERMINALS

1. Turn the ignition switch to "LOCK" (OFF) position.
2. Disconnect the engine-ECU connector.
3. Measure the resistance and check for continuity

between the terminals of the engine-ECU
harness-side connector while referring to the
check chart.

NOTE:

.

1. When measuring resistance and checking

continuity, a harness for checking contact pin
pressure should be used instead of inserting a
test probe.

2. The chart procedures do not have the particu-

lar order.

CAUTION

If the terminals that should be checked are mis-
taken, or if connector terminals are not correctly
shorted to earth, damage may be caused to the
vehicle wiring, sensors, engine-ECU and/or ohm-
meter. Be careful to prevent this!
4. If the ohmmeter shows any deviation from the

standard value, check the corresponding sensor,
actuator and related electrical wiring, and the
repair or replace.

5. After repair or replacement, recheck with the

ohmmeter to confirm that the repair or
replacement has corrected the problem.

149

Accelerator pedal
position sensor
(main) power supply

Ignition switch: ON

4.9

− 5.1 V

150

Accelerator pedal
position sensor
(main)

Ignition switch: ON

Release the accelerator
pedal

0.7

− 1.3 V

Depress the accelerator
pedal fully

4.0 V or more

Terminal
No.

Check item

Inspection condition (engine status)

Normal condition: