ENGINE (DIAGNOSTICS)(H4DOTC DIESEL) > Engine Control Module (ECM) I/O Signal

ELECTRICAL SPECIFICATION

Description

Connector No.

Terminal No.

Signal (V)

Note

Ignition SW ON

(engine OFF)

Ignition SW ON

(idling)

Crankshaft position sensor

Signal

B134

44

0

0 or 5

Waveform

Power supply

B134

43

5

5

Ground

B134

63

0

0

Camshaft position sensor

Signal

B134

45

0

0 or 5

Waveform

Ground

B134

64

0

0

Air flow sensor

Signal

B134

52

1 — 2

Ground

B134

71

0

0

Intake air temperature sensor (integrated with air flow sensor)

Signal

B134

53

1.9

1.9

30°C (86°F)

Ground

B134

69

0

0

Engine coolant temperature sensor

Signal

B134

49

1

1

75°C (167°F)

Ground

B134

67

0

0

Manifold absolute pressure sensor

Signal

B134

50

1

1

101 kPa

Power supply

B134

62

5

5

Ground

B135

16

0

0

Intake air temperature sensor (integrated with manifold absolute pressure sensor)

Signal

B134

77

1.9

1.9

30°C (86°F)

Ground

B135

16

0

0

Fuel temperature sensor

Signal

B134

48

1.2

1.2

50°C (122°F)

Ground

B134

68

0

0

Common rail pressure sensor

Signal

B134

46

1.4

25 MPa

Power supply

B134

42

5

5

Ground

B134

76

0

0

Exhaust gas temperature sensor 1

Signal

B134

54

4.4

4.4

200°C (392°F)

Ground

B134

72

0

0

Exhaust gas temperature sensor 2

Signal

B134

55

4.4

4.4

200°C (392°F)

Ground

B134

72

0

0

DPF pressure difference sensor

Signal

B134

56

0.54

0.54

1 kPa

Power supply

B134

42

5

5

Ground

B134

72

0

0

Accelerator pedal position sensor

Main signal

B135

39

0.57 — 0.77

0.57 — 0.77

Main power supply

B135

29

5

5

Main ground

B135

27

0

0

Sub signal

B135

28

0.57 — 0.79

0.57 — 0.79

Sub power supply

B134

42

5

5

Sub ground

B135

38

0

0

Electronic throttle control

Sensor signal

B135

36

3 — 4.6

3 — 4.6

Power supply

B134

61

5

5

Ground

B134

70

0

0

Motor (+)

B135

30

Duty waveform

Duty waveform

Operation frequency:

500 Hz

Motor (−)

B135

12

Duty waveform

Duty waveform

Operation frequency:

500 Hz

EGR control valve

Sensor signal

B134

51

1.2

2 — 3

Power supply

B134

57

5

5

Ground

B134

66

0

0

Motor (+)

B134

3

Duty waveform

Duty waveform

Operation frequency:

500 Hz

Motor (−)

B134

2

Duty waveform

Duty waveform

Operation frequency:

500 Hz

Suction control valve

Operation output

B134

26

Duty waveform

Duty waveform

Operation frequency:

250 Hz

Power supply

B134

5

Duty waveform

Duty waveform

Operation frequency:

250 Hz

Boost control valve

Operation output

B134

1

10 — 13

Duty waveform

Operation frequency:

500 Hz

Fuel injector

Operation power supply 1

B134

21

4 — 7

0 — 90

Operation power supply 2

B134

20

4 — 7

0 — 90

#1 — 1

B134

39

4 — 7

0 — 90

Waveform

#1 — 2

B134

40

4 — 7

0 — 90

Waveform

#2 — 1

B134

37

4 — 7

0 — 90

Waveform

#2 — 2

B134

38

4 — 7

0 — 90

Waveform

#3 — 1

B134

18

4 — 7

0 — 90

Waveform

#3 — 2

B134

19

4 — 7

0 — 90

Waveform

#4 — 1

B134

16

4 — 7

0 — 90

Waveform

#4 — 2

B134

17

4 — 7

0 — 90

Waveform

Shield

B134

65

0

0

Generator control

B134

22

0 — 6.5

0 — 6.5

Engine speed signal

B135

11

0

0 — 14

Waveform

Malfunction indicator light

B134

13

0

12 — 14

Glow voltage monitor

B134

73

When glow activates: 10 — 13

When glow does not activates: 0

When glow activates: 12 — 14

When glow does not activates: 0

Glow relay control

B134

34

When glow activates: 10 — 13

When glow does not activates: 0

When glow activates: 12 — 14

When glow does not activates: 0

Main relay control

B135

14

0

0

Sub fuel pump relay control

B134

11

10 — 13

0

Radiator fan relay 1 control

B134

24

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Radiator fan relay 2 control

B134

25

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

A/C relay control

B134

10

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

A/C pressure switch

B135

6

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Starter relay control

B134

36

0

0

Model with push button start, with clutch pedal depressed except when cranking: 10 — 14

Starter cut relay control

B134

12

0

0

Model with push button start, when cranking: 8 — 14

Accessory cut request

B134

35

10 — 13

12 — 14

Model with push button start

Ignition switch

B135

10

10 — 13

12 — 14

Delivery (test) mode switch

B135

7

10 — 13

12 — 14

When delivery (test) mode connector connected: 0

Neutral position switch

B135

21

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Switch is ON when shift position is in neutral.

Clutch switch

B134

28

When clutch pedal is depressed: 0

When clutch pedal is released: 10 — 13

When clutch pedal is depressed: 0

When clutch pedal is released: 12 — 14

Brake switch 1

B135

19

When brake pedal is depressed: 0

When brake pedal is released: 10 — 13

When brake pedal is depressed: 0

When brake pedal is released: 12 — 14

Brake switch 2

B135

18

When brake pedal is depressed: 10 — 13

When brake pedal is released: 0

When brake pedal is depressed: 12 — 14

When brake pedal is released: 0

Handle switch

B135

8

0

0

RHD model

Starter switch

B134

27

0

0

Model with push button start

Cranking: waveform

Starter switch 2

B135

20

0

0

Cranking: 8 — 14

Clutch start switch

B134

7

When clutch pedal is depressed: 10 — 13

When clutch pedal is released: 0

When clutch pedal is depressed: 12 — 14

When clutch pedal is released: 0

Model with push button start

Cruise control switch

Main switch

B134

29

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Command switch

B135

17

When operating nothing: 3.5 — 4.5

When operating RES/ACC: 2.5 — 3.5

When operating SET/COAST: 0.5 — 1.5

When operating CANCEL: 0 — 0.5

When operating nothing: 3.5 — 4.5

When operating RES/ACC: 2.5 — 3.5

When operating SET/COAST: 0.5 — 1.5

When operating CANCEL: 0 — 0.5

CAN communication

HIGH

B135

24

Waveform

LOW

B135

35

Waveform

Immobilizer communication

B135

5

SSM/GST communication line

B135

33

Control module power supply

B135

3

10 — 13

12 — 14

B135

2

10 — 13

12 — 14

Back-up power supply

B135

1

10 — 13

12 — 14

Ground (power supply)

B134

41

0

0

B134

80

0

0

B134

81

0

0

Ground (control system)

B135

13

0

0

B135

32

0

0

Input/output name

Measuring condition

Waveform

1. Crankshaft position sensor

At idling

2. Camshaft position sensor

At idling

3. EGR control valve

At idling

4. Suction control valve

At idling

5. Fuel injector

At idling

Model without push button start

Model with push button start

*1

Refer to “Push Button Start System” in WI section.

*2

Refer to “Starter System” in WI section.

*3

Refer to “Power Supply Circuit” in WI section.