Mitsubishi Eclipse. Manual — part 626

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-1047

STEP 6. Check connector C-02 at interlock switch for
damage.
Q: Is the connector in good condition?

YES : Go to Step 7.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then confirm that the

malfunction symptom is eliminated.

STEP 7. Check the interlock switch.
Refer to GROUP 21A, On-vehicle Service

− Interlock switch

check and adjustment

P.21A-9

.

Q: Are there any abnormalities?

YES : Go to Step 8.
NO : Repair or replace it. Then confirm that the malfunction

symptom is eliminated.

STEP 8. Check the power supply voltage at interlock
switch connector C-02.
(1) Disconnect the connector C-02 and measure at the harness

side.

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

(3) Measure the voltage between terminal 2 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 9.
NO : Check connector C-07 at intermediate connector for

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

P.00E-2

. If intermediate connectors is in good

condition, repair harness wire between starter relay
connector A-13X (terminal No. 1) and interlock switch
connector C-02 (terminal No. 2) because of open
circuit. Then confirm that the malfunction symptom is
eliminated.

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK000384AF

C-02 HERNESS
CONNECTOR:
COMPONENT SIDE

2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-1048

STEP 9. Check the continuity at interlock switch harness
side connector C-02.
(1) Disconnect the connector C-02 and measure at the harness

side.

(2) Check for the continuity between terminal No. 1 and

ground.

• Should be less than 2 ohms.

Q: Is the continuity normal?

YES : Replace the ECM. Then confirm that the malfunction

symptom is eliminated.

NO : Repair harness wire between interlock switch

connector C-02 (terminal No. 1) and ground because
of open circuit or harness damage. Then confirm that
the malfunction symptom is eliminated.

AK300744

1

2

CONNECTOR: C-02

AB

C-02

HARNESS CONNECTOR:
COMPONENT SIDE

AK000385

AF

C-02 HERNESS
CONNECTOR:
COMPONENT SIDE

2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-1049

INSPECTION PROCEDURE 32: Ignition Switch

− ST System and Transmission Range Switch System.

<A/T>

AK301823

7

10

5

3

1 2

4

6

9

4 5 6

1 2 3

8

BLA

C

K-RED

BLA

CK-RED

BLA

CK-RED

ACC

C-87

R

IGNITION
SWITCH

IG2

IG1

ST

LOCK

5

POWERTRAIN
CONTROL
MODULE (PCM)

58

TRANSMISSION
RANGE SWITCH

B-41
MU802355

N

P

10

9

16

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

C-55

(MU803781)

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

Ignition Switch-ST and Transmission Range Switch Circuit

AK300068

TRANSMISSION
RANGE SWITCH

AC

CONNECTOR: B-41

B-41 (B)

AK300119

CONNECTOR: C-28

AB

C-28

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-1050

.

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.

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.

AK300116

CONNECTOR: C-87

AB

C-87

AK300244

CONNECTOR: C-55 <A/T>

AG

PCM

C-55 (GR)

AK300426

8

9

3

4

5

1

2

6

7

10

AB

CONNECTOR: B-41

B-41 (B)

HARNESS
CONNECTOR:
COMPONENT SIDE