Mitsubishi L200. Manual — part 98

TROUBLESHOOTING

DIESEL FUEL

13A-188

STEP 11. Perform resistance measurement at A-
07 crank angle sensor connector.

• Disconnect connector, and measure at harness

side.

• Resistance between terminal No. 1 and earth.

OK: Continuity (2

Ω or less)

Q: Is the check result normal?

YES :

Go to Step 14 .

NO :

Go to Step 12 .

STEP 12. Connector check: C-105 engine-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 13 .

NO :

Repair or replace the connector.

STEP 13. Check harness between A-07 (terminal
No. 1) crank angle sensor connector and C-105
(terminal No. 91) engine-ECU connector.

NOTE: Before checking harness, check intermediate
connector A-133, and repair if necessary.

• Check earthing line for open circuit and damage.

Q: Is the check result normal?

YES :

Go to Step 8 .

NO :

Repair the damaged harness wire.

AK501329

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AB

Harness side
connector

A-07 (B)

Connector: A-07

AKA00089

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C-105 (B)

C-105 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-105

AB

AK501329

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2

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AB

Harness side
connector

A-07 (B)

Connector: A-07

AKA00089

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C-105 (B)

C-105 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-105

AB

TROUBLESHOOTING

DIESEL FUEL

13A-189

STEP 14. Perform output wave pattern
measurement at A-07 crank angle sensor (Using
an oscilloscope).

• Use special tool test harness (MB991709) to con-

nect connector, and measure at pick-up harness.

• Engine: Idling

• Transmission: Neutral <M/T> or P range <A/T>

• Voltage between terminal No. 2 and earth.

OK: Waveforms should be displayed on
Inspection procedure using an oscilloscope
(Refer to

P.13A-586

), its maximum value

should be 4.8 V or more, and its minimum
valve should be 0.6 V or less with no noise in
waveform.

Q: Is the check result normal?

YES :

Go to Step 8 .

NO :

Go to Step 15 .

STEP 15. Check the crankshaft sensing blade.

Q: Is the check result normal?

YES :

Go to Step 16 .

NO :

Replace the crankshaft sensing blade

STEP 16. M.U.T-III data list

• Refer to Data List Reference Table

a. Item 2: Engine revolution

Q: Is the check result normal?

YES :

Intermittent malfunction (Refer to GROUP

00

− How to Use Troubleshooting/

Inspection Service Points

− How to Cope

with Intermittent Malfunctions ).

NO :

Replace the crank angle sensor

Code No. P0336: Crank Angle Sensor Range/Performance Problem

OPERATION

• Refer to Code No. P0335: Crank Angle Sensor

System

P.13A-184

.

FUNCTION

• The crank angle sensor detects the crank angle

(position) and inputs a pulse signal to the engine-
ECU.

• In response to the signal, the engine-ECU

detects the engine speed, controls the fuel injec-
tion timing and fuel injection quantity, etc

TROUBLE JUDGMENT

Check Conditions

• Battery positive voltage is 6 − 16 V.

• Engine speed is 350 r/min or more

Judgment Criterion

• The number of pulses from the crank shaft posi-

tion sensor per engine rotation is abnormal.

PROBABLE CAUSES

• Failed crank angle sensor

• Open/short circuit in crank angle sensor circuit or

loose connector contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Installation check of crank angle sensor

• Check whether the crank angle sensor is cor-

rectly installed.

Q: Is the check result normal?

YES :

Go to Step 2 .

NO :

Repair or replace the crank angle sensor.

STEP 2. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is the diagnosis code set?

AK501329

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2

3

AB

Harness side
connector

A-07 (B)

Connector: A-07

TROUBLESHOOTING

DIESEL FUEL

13A-190

YES :

Replace the engine-ECU. When the engine-

ECU is replaced, write the chassis number
(Refer to GROUP 00

− Precautions Before

Service

− How to Perform Chassis Number

Writing ). After replacing the engine-ECU,
register the injector identification code and
learn fuel injection (Refer to GROUP 00

−

Precautions Before Service

− What The

Common Rail Engine Learns ). After
registering the injector identification code,
the vehicle equipped with the DPF carries
out the forcible DPF regeneration. (Refer to
GROUP 17

− Emission Control − Diesel

Particulate Filter (DPF) System

− Forcible

DPF Regeneration ).

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Use Troubleshooting/

Inspection Service Points

− How to Cope

with Intermittent Malfunctions ).

TROUBLESHOOTING

DIESEL FUEL

13A-191

Code No. P0340: Camshaft Position Sensor System

OPERATION

• A power voltage of 5 V is applied to the camshaft

position sensor power terminal (terminal No. 3)
from the engine-ECU (terminal No. 69) and
earthed to engine-ECU (terminal No. 90) from the
camshaft position sensor (terminal No. 1).

• The sensor signal is inputted to the engine-ECU

(terminal No. 66) from the camshaft position sen-
sor output terminal (terminal No. 2).

FUNCTION

• The camshaft position sensor detects the top

dead center on the compression stroke of the No.
1 cylinder and inputs a pulse signal to the engine-
ECU.

TROUBLE JUDGMENT

Check Condition

• Battery positive voltage is 6 − 16 V.

Judgment Criterion

• The number of output pulses from the camshaft

position sensor per engine rotation is one or less.

PROBABLE CAUSES

• Failed camshaft position sensor

• Open/short circuit or harness damage in cam-

shaft position sensor circuit or loose connector
contact

• Failed engine-ECU

AKA00197

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Camshaft Position Sensor Circuit

Camshaft
position
sensor

A-43

MU802337

C-105

R-B

R-B

69

3

1

L-Y

L-Y

66

2

2

B-W

B-W

90

1

3

A-131

Engine-ECU

5 V

5 V

Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Grey
R: Red P: Pink V: Violet PU: Purple SI: Silver

AB

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