Mitsubishi Colt Ralliart. Manual - part 704

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-141

STEP 6. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is the diagnosis code set?

YES : 

Go to Step 7 .

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use Troubleshooting/Inspection 

Service Points 

− How to Cope with 

Intermittent Malfunctions 

P.00-13

).

STEP 7. Reconfirm the diagnosis code after 
replacing the detonation sensor.

• Reconfirm the diagnosis code after replacing the 

detonation sensor.

Q: Is the diagnosis code set?

YES : 

Replace the engine-ECU.

NO : 

Check end.

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-142

Code No. P0335: Crank Angle Sensor System

AK402715

3

1

2

4

1

2 3

1

2 3

19

21

20

18

17

16

15

14

1213

11

8 9

L

10

37
52 53 54 555657585960616263646566

38 39 404142434445464748495051

22 23 24 252627282930313233343536

7

5

3

1

6

4

2

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

  P: Purple

Crank Angle Sensor Circuit

J/B

Engine
control
relay

Crank angle sensor

4

3

2

3

2

2

3

1

1

6

4

1

5 V

Engine-ECU

To engine-ECU

28

13

BR-W

G-R

R

R

B-106

B-112

A-17

A-133

A-133-1

A-133

(MU802053)

A-133-1

A-114

1

1

R

Fusible link

16

20A

B-108

AD

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-143

OPERATION

• Power is supplied to the crank angle sensor (ter-

minal No. 1) by way of the engine control relay 
(terminal No. 4) and is earthed to the engine-ECU 
(terminal No. 28) through the crank angle sensor 
(terminal No. 3).

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

angle sensor (terminal No. 2) from the 
engine-ECU (terminal No. 13).

FUNCTION

• The crank angle sensor detects crankshaft angu-

lar position and provides the engine-ECU with a 
pulse signal.

• Using the signal, the engine-ECU performs injec-

tor and other control.

TROUBLE JUDGEMENT

Check Condition

• Ignition switch is in "ON" position.

Judgement Criterions

• Pulse signal from crank angle sensor continues 

264 times and engine speed is less than 440 
r/min.

• Crank angle sensor signal pattern is abnormal.

Check Condition

• Ignition switch is in "ON" position.

Judgement Criterion

• Crank angle sensor signal pattern is not normal 

for 4 seconds and engine speed is more than 440 
r/min.

Check Condition

• While engine is being cranked.

Judgement Criterion

• Crank angle sensor output voltage does not vary 

for 4 seconds (no pulse signal input).

PROBABLE CAUSES

• Failed crank angle sensor

• Open/short circuit in or damage to crank angle 

sensor circuit, or loose connector contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13B-335

.

a. Item 22: Crank angle sensor

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 

P.00-13

).

NO : 

Go to Step 2.

STEP 2. Connector check: A-133 crank angle 
sensor intermediate connector

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair or replace.

STEP 3. Perform voltage measurement at A-133 
crank angle sensor intermediate connector.

•

Disconnect the connector, and measure at harness 

side.

• Ignition switch: ON

• Voltage between terminal No. 2 and earth.

OK: 4.9 

− 5.1 V

Q: Is the check result normal?

YES : 

Go to Step 9.

NO : 

Go to Step 4.

AK402095

1

2

3

AC

A-133(DG)

Connector: A-133

Harness side 
connector

AK402095

1

2

3

AC

A-133(DG)

Connector: A-133

Harness side 
connector

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-144

STEP 4. Perform voltage measurement at A-114 
engine-ECU connector.

•

Disconnect engine-ECU connector, and connect 

special tool power plant ECU check harness 
(MB991987), and then measure the voltage on 
the check connector.

• Disconnect the A-133 crank angle sensor inter-

mediate connector.

• Ignition switch: ON

• Voltage between terminal No. 13 and earth.

OK: 4.9 

− 5.1 V

Q: Is the check result normal?

YES : 

Go to Step 5.

NO : 

Go to Step 6.

STEP 5. Connector check: A-114 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Check and repair the harness between 

A-133 (terminal No. 2) crank angle sensor 
intermediate connector and A-114 (terminal 
No. 13) engine-ECU connector.

• Check output line for open circuit.

NO : 

Repair or replace.

AK402745

6

4

2

5

3

1

9

7

8

10

11

12

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

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

L

AF

A-114

Connector: 

A-114

Harness side connector

Engine-ECU

Battery

AK402095

1

2

3

AC

A-133(DG)

Connector: A-133

Harness side 
connector

AK402745

6

4

2

5

3

1

9

7

8

10

11

12

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

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

L

AF

A-114

Connector: 

A-114

Harness side connector

Engine-ECU

Battery

AK402095

1

2

3

AC

A-133(DG)

Connector: A-133

Harness side 
connector

Main

Index

Group

TOC