ENGINE (DIAGNOSTICS)(H4DO) > Engine Control Module (ECM) I/O Signal

ELECTRICAL SPECIFICATION

Description

Connector No.

Terminal

No.

Signal (V)

Reference

Ignition SW ON

(engine OFF)

Engine ON

(idling)

Crankshaft position sensor

Signal (+)

B137

29

0

−7 — +7

Waveform

Signal (−)

B137

30

0

0

Shield

B137

21

0

0

Rear oxygen sensor

Signal

B136

21

0

0 — 0.9

Shield

B136

22

0

0

GND

(sensor)

B137

31

0

0

Front oxygen (A/F) sensor heater

Signal 1

B134

2

0 — 1.0

Waveform

Signal 2

B134

1

Signal 3

B134

9

Signal 4

B134

10

Rear oxygen sensor heater signal

B135

7

0 — 1.0

Waveform

Engine coolant temperature sensor

Signal

B137

11

1.0 — 1.4

1.0 — 1.4

After engine is warmed-up.

GND

(sensor)

B137

31

0

0

After engine is warmed-up.

Vehicle speed signal

B136

10

0 or 5

0 or 5

“5” and “0” are repeatedly displayed when vehicle is driven.

Air flow sensor

Signal

B136

31

0.3 — 4.5

Shield

B136

24

0

0

GND

B136

32

0

0

Intake air temperature sensor signal

B136

9

0.3 — 4.6

0.3 — 4.6

Starter switch

B135

21

0

0

Cranking: 8 — 14

Starter relay

B135

32

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

A/C switch

B136

26

ON: 10 — 13

OFF: 0

ON: 12 — 14

OFF: 0

Ignition switch

B135

10

10 — 13

12 — 14

Neutral position switch

B135

9

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Test mode connector

B135

22

10 — 13

12 — 14

When connected: 0

Knock sensor

Signal

B137

17

2.8

2.8

Shield

B137

16

0

0

Back-up power supply

B136

5

10 — 13

12 — 14

Ignition switch “OFF”: 10 — 13

Control module power supply

B136

3

10 — 13

12 — 14

B136

4

10 — 13

12 — 14

Sensor power supply

B137

25

5.12

5.12

Ignition control

#1

B134

25

0

12 — 14

Waveform

#2

B134

24

0

12 — 14

Waveform

#3

B134

23

0

12 — 14

Waveform

#4

B134

22

0

12 — 14

Waveform

Fuel Injector

#1

B134

17

10 — 13

1 — 14

Waveform

#2

B134

16

10 — 13

1 — 14

Waveform

#3

B134

27

10 — 13

1 — 14

Waveform

#4

B134

26

10 — 13

1 — 14

Waveform

Fuel pump relay control

B136

11

ON: 0.5 or less

OFF: 10 — 13

0.5 or less

A/C relay control

B135

24

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Radiator fan relay 1 control

B135

19

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Radiator fan relay 2 control

B135

27

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Model with A/C only

Wiper switch signal

B136

35

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

AT/MT identification signal

B135

28

0

0

MT model only

Steering wheel switch signal

B136

33

0

0

RHD model only

Malfunction indicator light

B135

16

Light “ON”: 1 or less

Light “OFF”: 10 — 14

Engine speed output

B135

25

0 — 13 or more

Waveform

Purge control solenoid valve

B134

8

ON: 1 or less

OFF: 10 — 13

ON: 1 or less

OFF: 12 — 14

Waveform

EGR solenoid valve

Signal A+

B134

15

0 or 10 — 13

0 or 12 — 14

Signal A−

B134

14

0 or 10 — 13

0 or 12 — 14

Signal B+

B134

13

0 or 10 — 13

0 or 12 — 14

Signal B−

B134

12

0 or 10 — 13

0 or 12 — 14

Manifold absolute pressure sensor

Signal

B137

15

3.8 — 4.4

1.2 — 2.5

Power supply

B137

25

5.12

5.12

GND

(sensor)

B137

31

0

0

Small light switch

B136

16

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Blower fan switch

B135

8

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

A/C middle pressure switch

B136

15

ON: 0

OFF: 4.5 — 5.5

ON: 0

OFF: 4.5 — 5.5

Rear defogger switch

B136

27

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Power steering oil pressure switch

B134

30

10 — 13

ON: 0

OFF: 12 — 14

Front oxygen (A/F) sensor signal (+)

B134

18

1.2 — 3.2

1.2 — 3.2

Front oxygen (A/F) sensor signal (−)

B134

28

1.2 — 2.7

1.2 — 2.7

Front oxygen (A/F) sensor shield

B134

29

0

0

SSM/GST communication line

B135

30

1 ← → 4

1 ← → 4

GND (injector)

B134

7

0

0

GND (power supply)

B134

6

0

0

B137

1

0

0

GND (control system)

B135

3

0

0

B135

4

0

0

GND

(front oxygen (A/F) sensor heater 1)

B134

3

0

0

GND

(front oxygen (A/F) sensor heater 2)

B134

4

0

0

GND

(front oxygen (A/F) sensor heater 3)

B134

5

0

0

Camshaft position sensor (LH)

B137

13

0 — 0.9

ON: 0

OFF: 4.7 — 5.3

Waveform

Camshaft position sensor (RH)

B137

12

0 — 0.9

ON: 0

OFF: 4.7 — 5.3

Waveform

Fuel level sensor

B136

19

0.12 — 4.75

0.12 — 4.75

Electronic throttle control

Main

B137

23

0.4 — 0.7

Fully open: 4.0 — 4.7

0.4 — 0.7

(After engine is warmed-up.)

Sub

B137

24

4.2 — 4.8

Fully open: 0.1 — 0.3

4.2 — 4.8

(After engine is warmed-up.)

Power supply

B137

25

5.12

5.12

GND

(sensor)

B137

31

0

0

Electronic throttle control motor 1 (+)

B137

2

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 2 (+)

B137

3

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 1 (−)

B137

4

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 2 (−)

B137

5

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor power supply 1

B136

1

10 — 13

12 — 14

Electronic throttle control motor power supply 2

B136

2

10 — 13

12 — 14

GND (electric throttle control motor 1)

B137

6

0

0

GND (electric throttle control motor 2)

B137

7

0

0

Electronic throttle control motor relay

B135

6

0

0

Ignition switch

“ON”: ON

Oil flow control solenoid (LH)

Signal

B134

34

Duty waveform

Duty waveform

Oil flow control solenoid (RH)

Signal

B134

33

Duty waveform

Duty waveform

Acceleration pedal position sensor

Main sensor signal

B136

28

Fully closed: 0.4 — 1.0

Fully open: 2.4 — 3.7

Fully closed: 0.4 — 1.0

Fully open: 2.4 — 3.7

Main power supply

B136

17

5

5

GND

(main sensor)

B136

18

0

0

Shield

B136

30

0

0

Sub sensor signal

B136

29

Fully closed: 0.3 — 1.1

Fully open: 2.3 — 3.8

Fully closed: 0.3 — 1.1

Fully open: 2.3 — 3.8

Sub power supply

B137

25

5

5

GND

(sub sensor)

B137

31

0

0

Cruise control main light

B135

13

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Cruise control set light

B135

14

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Clutch switch

B136

34

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

B136

12

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

B136

13

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

Main switch

B136

14

ON: 0

OFF: 5.12

ON: 0

OFF: 5.12

CAN communication

Signal (+)

B135

1

Pulse signal

Signal (−)

B135

2

Pulse signal

immobilizer input/output 1

B135

23

1 or less ←→ 4 or more

1 or less ←→ 4 or more

immobilizer input/output 2

B135

31

1 or less ←→ 4 or more

1 or less ←→ 4 or more

generator control

B135

17

0 — 6.5

0 — 6.5

Cruise control command switch

B136

23

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

Secondary air pipe pressure sensor

Signal

B136

7

2.2 — 2.7

2.2 — 2.7

When secondary air is inducted: 3.4 — 4.1

Power supply

B137

25

5.12

5.12

GND (sensor)

B137

31

0

0

Secondary air combination valve relay

B135

34

ON: 0

OFF: 10 — 13

ON: 0

OFF: 10 — 14

Secondary air pump relay

B135

5

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Self shut-off relay

B135

15

0

0