Mitsubishi Colt Ralliart. Manual - part 697

 

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Mitsubishi Colt Ralliart. Manual - part 697

 

 

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-113

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13B-335

.

a. Item No. 14: Throttle position sensor (sub)

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-107 
electronic-controlled throttle valve connector

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Repair or replace the connector.

STEP 3. Perform voltage measurement at A-107 
electronic-controlled throttle valve connector.

• Disconnect 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 7 .

NO : 

Go to Step 4 .

STEP 4. Connector check: A-114 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 5 .

NO : 

Repair or replace the connector.

AK402086

1

6 5 4 3 2

A-107(B)

AC

Connector: A-107

Harness side 

connector

AK402086

1

6 5 4 3 2

A-107(B)

AC

Connector: A-107

Harness side 

connector

AK402745

6

4

2

5

3

1

9

7

8

10

11

12

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14

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52

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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

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-114

STEP 5. Check harness between A-107 (terminal 
No. 2) electronic-controlled throttle valve 
connector and A-114 (terminal No. 31) 
engine-ECU connector.

• Check power supply line for open/short circuit.

Q: Is the check result normal?

YES : 

Go to Step 6 .

NO : 

Repair the damaged harness wire.

STEP 6. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13B-335

.

a. Item No. 14: Throttle position sensor (sub)

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 : 

Replace engine-ECU.

STEP 7. Connector check: A-114 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 8 .

NO : 

Repair or replace the connector.

AK402086

1

6 5 4 3 2

A-107(B)

AC

Connector: A-107

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

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29

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32

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35

36

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38

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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

AK402745

6

4

2

5

3

1

9

7

8

10

11

12

13

14

15

16

17

18

19

20

21

22

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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

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-115

STEP 8. Check harness between A-107 (terminal 
No. 2) electronic-controlled throttle valve 
connector and A-114 (terminal No. 31) 
engine-ECU connector.

• Check power supply line for damage.

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Repair the damaged harness wire.

STEP 9. Check harness between A-107 (terminal 
No. 3) electronic-controlled throttle valve 
connector and A-114 (terminal No. 16) 
engine-ECU connector.

• Check output line for open/short circuit and dam-

age.

Q: Is the check result normal?

YES : 

Go to Step 10 .

NO : 

Repair the damaged harness wire.

STEP 10. Replace throttle body assembly

• After replacing the throttle body assembly, 

re-check the trouble symptoms.

Q: Is the check result normal?

YES : 

Check end.

NO : 

Replace engine-ECU.

AK402086

1

6 5 4 3 2

A-107(B)

AC

Connector: A-107

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

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24

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27

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30

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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

AK402086

1

6 5 4 3 2

A-107(B)

AC

Connector: A-107

Harness side 

connector

AK402745

6

4

2

5

3

1

9

7

8

10

11

12

13

14

15

16

17

18

19

20

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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

Main

Index

Group

TOC

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-116

Code No. P0223: Throttle Position Sensor  (Sub) Circuit High Input

OPERATION

• A power voltage of 5 V is applied to the elec-

tronic-controlled throttle valve (terminal No. 2) 
from the engine-ECU (terminal No. 31).

• The power voltage is earthed to the engine-ECU 

(terminal No. 30) from the electronic-controlled 
throttle valve (terminal No. 4).

• The sensor signal is inputted to the engine-ECU 

(terminal No. 16) from the electronic-controlled 
throttle valve output terminal (terminal No. 3).

FUNCTION

• The throttle position sensor converts the throttle 

valve position into voltage and inputs it into the 
engine-ECU.

• The engine-ECU controls the throttle valve posi-

tion.

TROUBLE JUDGMENT

Check Condition

• Ignition switch is in "ON" position.

Judgment Criterion

• Throttle position sensor (sub) output voltage is 

more than 4.8 V.

PROBABLE CAUSES

• Failed throttle position sensor (sub)

• Open/short circuit and damage in throttle position 

sensor (sub) circuit or loose connector contact

• Failed engine-ECU

AK402686

6

1 2 3 4 5

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

AF

5 V

31

2

Electronic-controlled
throttle valve

B-W

W-R

Y-R

16

30

3

4

Throttle Position Sensor (sub) Circuit

A-107

A-114

(sub)

Hall IC

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

Engine-ECU 

Main

Index

Group

TOC

 

 

 

 

 

 

 

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