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

ELECTRICAL SPECIFICATION

Description

Connector No.

Terminal

No.

Signal (V)

Note

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

—

Ground

(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.

Ground

(sensor)

B137

31

0

0

After engine is warmed up.

Air flow sensor

Signal

B136

31

—

0.3 — 4.5

—

Shield

B136

24

0

0

—

Ground

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

Model without push button start

Cranking: 8 — 14

Model with push button start

Cranking: waveform

Starter switch 2

B136

35

0

0

Model with push button start

Cranking: 8 — 14

Starter cut relay

B135

35

0

0

Model with push button start

Cranking: 8 — 14

Accessory cut request

B135

34

10 — 13

12 — 14

Model with push button start

Cranking: 0

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

• For AT model, switch is ON when select lever is shifted into “P” range or “N” range.

• For MT model, switch is ON when select lever is shifted into “N” range.

Delivery (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

5

—

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

Self-shutoff control

B135

15

10 — 13

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 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

5

Ground

(sensor)

B137

31

0

0

A/C middle pressure switch

B136

15

ON: 0

OFF: 4.5 — 5.5

ON: 0

OFF: 4.5 — 5.5

—

Blower fan switch

B135

8

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Manual A/C model

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

—

Signal (−)

B134

28

1.2 — 2.7

1.2 — 2.7

—

Shield

B134

29

0

0

—

SSM/GST communication line

B135

30

1 or less ← → 4 or more

1 or less ← → 4 or more

—

Ground (injector)

B134

7

0

0

—

Ground (power supply)

B134

6

0

0

—

B137

1

0

0

—

Ground (control system)

B135

3

0

0

—

B135

4

0

0

—

Ground

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

B134

3

0

0

—

Ground

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

B134

4

0

0

—

Ground

(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

Electronic throttle control

Main

B137

23

0.4 — 0.7

Fully opened: 4.0 — 4.7

0.4 — 0.7

(After engine is warmed up.)

—

Sub

B137

24

4.2 — 4.8

Fully opened: 0.1 — 0.3

4.2 — 4.8

(After engine is warmed up.)

—

Shield

B136

22

0

0

—

Power supply

B137

25

5

5

—

Ground

(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

2

10 — 13

12 — 14

—

Electronic throttle control motor power supply 2

B136

1

10 — 13

12 — 14

—

Ground (electronic throttle control motor 1)

B137

6

0

0

—

Ground (electronic 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

—

Accelerator pedal position sensor (main)

Signal

B136

28

Fully closed: 1

Fully opened: 3.0 or more

Fully closed: 1

Fully opened: 3.0 or more

—

Power supply

B136

17

5

5

—

Ground (sensor)

B136

18

0

0

—

Shield

B136

30

0

0

—

Accelerator pedal position sensor (sub)

Signal

B136

29

Fully closed: 1

Fully opened: 3.0 or more

Fully closed: 1

Fully opened: 3.0 or more

—

Power supply

B137

25

5

5

—

Ground (sensor)

B137

31

0

0

—

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

—

Cruise control main switch

B136

14

ON: 0

OFF: 5

ON: 0

OFF: 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

—

CAN communication

Signal (+)

B135

1

Pulse signal

—

Signal (−)

B135

2

Pulse signal

—

Immobilizer

Signal 1

B135

23

Less than 1 ←→ 4 or more

Less than 1 ←→ 4 or more

—

Signal 2

B135

31

Less than 1 ←→ 4 or more

Less than 1 ←→ 4 or more

—

Generator control

B135

17

0 — 6.5

0 — 6.5

—

Input/output name

Measuring condition

Waveform

1. Crankshaft position sensor

At idling

2. Camshaft position sensor

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.