Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 218

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-71

STEP 10. Check for harness damage between engine
coolant temperature sensor connector B-11 terminal 2 and
ECM connector C-58 terminal 49 <M/T> or PCM connector
C-55 terminal 57 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 14.
NO : Repair it. Then go to Step 14.

ACX02490

CONNECTOR : B-11

ENGINE
COOLANT
TEMPERATURE
SENSOR

AC

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-72

STEP 11. Check the engine coolant temperature sensor.
(1) Disconnect the engine coolant temperature sensor

connector B-11

(2) Remove the engine coolant temperature sensor.
(3) With the temperature sensing portion of engine coolant

temperature sensor immersed in hot water, check
resistance.

Standard value:

5.3

−

6.7 k

Ω

[at 0

°

C (32

°

F)]

2.3

−

3.0 k

Ω

[at 20

°

C (68

°

F)]

1.0

−

1.5 k

Ω

[at 40

°

C (104

°

F)]

0.30

−

0.42 k

Ω

[at 80

°

C (176

°

F)]

(4) Apply 3M



AAD part number 8731 or equivalent on the

screw section of the engine coolant temperature sensor.

(5) Install the engine coolant temperature sensor, and tighten

to the specified torque.

Tightening torque: 29

±

10 N

⋅

m(22

±

7 ft-lb)

Q: Is the resistance at the standard value?

YES : Go to Step 12.
NO : Replace the engine coolant temperature sensor. Then

go to Step 14.

STEP 12. Check connector C-58 at ECM <M/T> or
connector C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 13.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 14.

ACX02490

CONNECTOR : B-11

ENGINE
COOLANT
TEMPERATURE
SENSOR

AC

AKX01622

AKX01623 AB

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-73

STEP 13. Check for harness damage between engine
coolant temperature sensor connector B-11 terminal 1 and
ECM connector C-58 terminal 44 <M/T> or PCM connector
C-55 terminal 44 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 14.
NO : Repair it. Then go to Step 14.

STEP 14. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to

P.13B-4

, Procedure 6

−

Other Monitor.

(2) Check the diagnostic trouble code (DTC).

Q: Is the DTC P0115 is output?

YES : Retry the troubleshooting.
NO : The inspection is complete.

ACX02490

CONNECTOR : B-11

ENGINE
COOLANT
TEMPERATURE
SENSOR

AC

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-74

DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem

CIRCUIT OPERATION

•

5-volt voltage is applied to the engine coolant
temperature sensor output terminal (terminal 1)
from the ECM (terminal 44) <M/T> or PCM
(terminal 44) <A/T> via the resistor in the ECM
<M/T> or PCM <A/T>. The ground terminal
(terminal 2) is grounded with ECM (terminal 49)
<M/T> or PCM (terminal 57) <A/T>.

•

The engine coolant temperature sensor is a
negative temperature coefficient type of resistor.
It has the characteristic that when the engine
coolant temperature rises the resistor decreases.

•

The engine coolant temperature sensor output
voltage increases when the resistor increases
and decreases when the resistor decreases.

AK000688

1 2

BLA

CK

YELLO

W

-GREEN

49<M/T>
57<A/T>

44

ENGINE CONTROL
MODULE(ECM)<M/T>
OR
POWERTRAIN CONTROL
MODULE(PCM)<A/T>

ENGINE COOLANT
TEMPERATURE SENSOR

B-11
(MU802406)

2

1

5V

65

43
50

42
49

41
48
60 61

64

46 47
58 59
67 68

45

56
66

52

51

44

53

62

54

63

57

55

C-58<M/T>
(MU803782)

C-55<A/T>
(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

ACX02490

CONNECTOR : B-11

ENGINE
COOLANT
TEMPERATURE
SENSOR

AC

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI