Mitsubishi L200. Manual - part 199

ON-VEHICLE SERVICE

DIESEL FUEL

13A-592

AKB00329

R

S

T

R

S

T

T

Z

Z

Y

Y

<L. H. drive vehicles>

<R. H. drive vehicles>

V

V

W

W

U

U

X

X

<2WD-M/T>

<4WD-M/T>

<4WD-A/T>

a

b

AB

ON-VEHICLE SERVICE

DIESEL FUEL

13A-593

ENGINE CONTROL RELAY CONTINUITY 
CHECK

M1133008300459

ENGINE COOLANT TEMPERATURE 
SENSOR CHECK

M1133005000404

1. Remove the engine coolant temperature sensor 

using the special tool engine coolant temperature 
sensor wrench (MB992042).

2. With temperature sensing portion of engine 

coolant temperature sensor immersed in hot 
water, check resistance.

Standard value:

14 

− 17 kΩ (at −20°C)

5.1 

− 6.5 kΩ (at 0°C)

2.1 

− 2.7 kΩ (at 20°C)

0.9 

− 1.3 kΩ (at 40°C)

0.48 

− 0.68 kΩ (at 60°C)

0.26 

− 0.36 kΩ (at 80°C)

3. If the resistance deviates from the standard value 

greatly, replace the sensor.

4. Apply sealant to threaded portion.

Specified sealant:

3M NUT Locking Part No. 4171 or equivalent

5. Tighten the engine coolant temperature sensor to 

the specified torque, using engine coolant 
temperature sensor wrench, special tool 
(MB992042).

Tightening torque: 29 

± 10 N⋅m

Tester 
Connection 
Terminal

Battery Voltage

Normal State

1 

− 2

No voltage

Continuity

3 

− 4

No voltage

No continuity

Voltage (Connect 
positive (+) terminal of 
battery to terminal No. 
1 and negative (

−) 

terminal of battery to 
terminal No. 2.)

Continuity (2 

Ω 

or less)

AK501444

1

2

3
4

Equipment side 
connector

AB

Engine control 
relay

AK501445

1 2

Equipment side 
connector

AB

Engine coolant
temperature sensor

AK503116 AC

MB992042

AKX01622

AKX01623AD

ON-VEHICLE SERVICE

DIESEL FUEL

13A-594

INJECTOR CHECK

M1133008100314

1. Disconnect the injector connector.
2. Measure the resistance between terminals No. 1 

and No. 2.

Standard value: Approximately 0.45 

Ω (at 

20

°C)

3. If not within the standard value, replace the 

injector. After replacing the injector, register the 
injector identification code and learn fuel injection. 
(Refer to GROUP 00 

− Precautions Before 

Service 

− What The common Rail Engine Learns 

).

INTAKE AIR TEMPERATURE SENSOR No. 
1 CHECK

M1133010300296

1. Disconnect the air flow sensor connector.
2. Measure resistance between terminals No. 1 and 

No. 2.

Standard value:

13 

− 17 kΩ (at −20°C)

5.4 

− 6.6 kΩ (at 0°C)

2.3 

− 3.0 kΩ (at 20°C)

1.0 

− 1.5 kΩ (at 40°C)

0.56 

− 0.76 kΩ (at 60°C)

0.31 

− 0.43 kΩ (at 80°C)

3. Remove the air flow sensor

4. Measure resistance while heating the sensor 

using a hair drier.

Normal condition:

5. If the value deviates from the standard value or 

the resistance remains unchanged, replace the air 
flow sensor assembly.

6. Install the air flow sensor and tighten it to the 

specified torque.

Tightening torque: 0.7 

± 0.1 N⋅m

INTAKE AIR TEMPERATURE SENSOR No. 
2 CHECK <Except Euro5>

M1133010400301

1. Disconnect the intake air temperature sensor No. 

2 connector.

2. Measure resistance between terminals No. 1 and 

No. 2.

Standard value:

13 

− 18 kΩ (at −20°C)

5.1 

− 6.9 kΩ (at 0°C)

2.0 

− 3.0 kΩ (at 20°C)

0.9 

− 1.5 kΩ (at 40°C)

0.40 

− 0.78 kΩ (at 60°C)

0.23 

− 0.42 kΩ (at 80°C)

3. Remove the intake air temperature sensor No. 2

AKA00359

1

2

Injector

AB

Equipment side 
connector

AKA00360

5

4

3

2

1

Air flow sensor 
(incorporating intake 
 air temperature sensor 
 No.1)

Equipment side 
connector

AB

Temperature (

°C)

Resistance (k

Ω)

Higher

Smaller

AK603026AB

No. 1 intake 
air temperature
sensor 

AK501450

1 2

Equipment side 
connector

AB

Intake air temperature 
sensor No.2 

ON-VEHICLE SERVICE

DIESEL FUEL

13A-595

4. Measure resistance while heating the sensor 

using a hair drier.

Normal condition:

5. If the value deviates from the standard value or 

the resistance remains unchanged, replace the 
intake air temperature sensor No. 2 sensor 
assembly.

6. Install the air flow sensor and tighten it to the 

specified torque.

Tightening torque: 13.5 

± 1.5 N⋅m

SUCTION CONTROL VALVE CHECK

M1133010500290

1. Disconnect the suction control valve connector.
2. Measure resistance between terminal No. 1 and 

No. 2

Standard value: Approximately 2.1 

Ω (at 20 

°C)

3. If not within the standard value, replace the 

suction control valve. After replacing the suction 
control valve, learn the supply pump. (Refer to 
GROUP 00 

− Precautions Before Service − What 

The common Rail Engine Learns ).

FUEL TEMPERATURE SENSOR CHECK

M1133006800317

1. Disconnect the fuel temperature sensor 

connector.

2. Measure resistance between terminal No. 1 and 

No. 2

Standard value: Approximately 2.0 

− 3.0 kΩ 

(at 20 

°C)

3. If not within the standard value, replace the supply 

pump assembly. After replacing the supply pump, 
learn the supply pump. (Refer to GROUP 00 

− 

Precautions Before Service 

− What The common 

Rail Engine Learns ).

COMMON RAIL CHECK

M1133010600253

CAUTION

High pressure fuel is supplied to the common 
rail. It is dangerous to remove the rail pressure 
sensor and rail pressure limiter from the com-
mon rail because it may cause fuel leaks. Do not 
remove the rail pressure sensor and rail pressure 
limiter from the common rail.

1. Visually check the common rail for cracks, 

damage, and corrosion.

2.  If an abnormality is found, replace the common 

rail.

Temperature (

°C)

Resistance (k

Ω)

Higher

Smaller

AK501451

AB

Intake air temperature 
sensor No.2

AK501452

1

2

Equipment side 
connector

AB

Suction control 
valve

AK501453

1 2

Equipment side 
connector

AB

Fuel temperature sensor

AK501454

AB

Common rail