Mitsubishi Eclipse. Manual - part 345

 

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Mitsubishi Eclipse. Manual - part 345

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-873

INSPECTION PROCEDURE 32: Ignition Switch 

− ST System and Transmission Range Switch System. 

<A/T>

AK301801

7

10

5

3

1 2

4

6

9

4 5 6

1 2 3

8

BL

ACK

-RED

BL

ACK

-RED

ACC

C-87

Ignition Switch-ST and Transmission Range Switch Circuit

R

IGNITION
SWITCH

IG2

IG1

ST

LOCK

5

TRANSMISSION
RANGE
SWITCH

B-41

MU802355

L

2

3

D

N

R

P

10

9

16

VEHICLES
WITHOUT
SPORT MODE
TYPE

D

N

R

P

10

9

C-28

7 8

5

3 4

35

34

10 11 12

2122 23 24

13 14 15

25 26 27

16

28

17

18 19 20

29

30 31

32 33

36 37

38

9

1 2

6

BL

ACK

-

RED

BL

ACK

-

RED

C-54

(MU803781)

POWERTRAIN CONTROL
MODULE (PCM)

58

42 43
48 49 50 51 52 53 54 55 56 57

46

45

44

58 59

60 61 62 63

64 65 66

47

41

TO STARTING
SYSTEM

VEHICLES
WITHOUT
SPORT MODE
TYPE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-874

.

COMMENT

• If the selector lever is moved to "P" or "N" range 

and the ignition switch is turned to "START" posi-
tion, battery positive voltage is supplied to PCM 
(terminal No. 58) through the ignition switch and 
transmission range switch. Because of this, the 
PCM detects that the engine is cranking. 

• The transmission range switch detects the trans-

mission range (P, N or other ranges) and con-
verts it to a voltage signal (high or low). Then the 
transmission range switch sends that signal to 
the PCM. 

.

TROUBLESHOOTING HINTS (The most likely 
caused for this code to be set are: )

• Malfunction of the ignition switch.

• Malfunction of the transmission range switch.

• Improper connector contact, open circuit or 

short-circuit in the harness wire.

• Malfunction of the PCM.

DIAGNOSIS

STEP 1. Check connector B-41 at transmission range 
switch for damage.
Q: Is the connector in good condition?

YES : Go to Step 2.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

AK300068AB

CONNECTOR: B-41

B-41 (B)

TRANSMISSION
RANGE
SWITCH

AK300119

CONNECTOR: C-28

AB

C-28

AK300116

CONNECTOR: C-87

AB

C-87

AK300060AB

C-54 (GR)

PCM

CONNECTOR: C-54 <A/T>

AK300426

8

9

3

4

5

1

2

6

7

10

AB

CONNECTOR: B-41

B-41 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-875

STEP 2. Check the transmission range switch.
Refer to GROUP 23A, On-vehicle Service 

− Essential Service − 

Transmission Range Switch Continuity Check 

P.23A-408

.

Q: Are there any abnormalities?

YES : Go to Step 3.
NO :  Repair or replace it. Then confirm that the malfunction 

symptom is eliminated.

STEP 3. Measure the power supply voltage at transmission 
range switch connector B-41.
(1) Disconnect the connector B-41 and measure at the harness 

side.

(2) Turn the ignition switch to the "START" position.

(3) Measure the voltage between terminal No. 10 and ground.

• Voltage should be battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts) 

present?
YES : Go to Step 4.
NO :  Check connector C-28 at intermediate connector for 

damage, and repair or replace as required. Refer to 
GROUP 00E, Harness Connector Inspection 

P.00E-2

. If intermediate connector is in good 

condition, repair harness wire between ignition switch 
connector C-87 (terminal No. 5) and transmission 
range switch connector B-41 (terminal No. 10) 
because of open circuit. Then confirm that the 
malfunction symptom is eliminated.

AK300426

8

9

3

4

5

1

2

6

7

10

AB

CONNECTOR: B-41

B-41 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK000386

B-41 HARNESS 
CONNECTOR: 
COMPONENT SIDE

6

1

2

3

4

5

7

8

9

10

AK000386AK

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-876

STEP 4. Check connector C-54 at PCM for damage.
Q: Is the connector in good condition?

YES : Go to Step 5.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then confirm that the 

malfunction symptom is eliminated.

STEP 5. Check for open circuit and short circuit to ground 
and harness damage between transmission range switch 
connector B-41 (terminal No. 9) and PCM connector C-54 
(terminal No. 58).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Then confirm that the malfunction 

symptom is eliminated.

NO :  Repair it. Then confirm that the malfunction symptom 

is eliminated.

AK300412

42

43

48

49

50

51

52

53

54

55

56

57

46 45 44

58

59

60

61

62

63

64

65

66

47

41

C-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300426

8

9

3

4

5

1

2

6

7

10

AB

CONNECTOR: B-41

B-41 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK300412

42

43

48

49

50

51

52

53

54

55

56

57

46 45 44

58

59

60

61

62

63

64

65

66

47

41

C-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

 

 

 

 

 

 

 

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