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

ELECTRICAL SPECIFICATION

Description

Connector No.

Terminals

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

B137

18

0

0 — 0.9

Shield

B137

27

0

0

Ground

(sensor)

B134

29

0

0

Front oxygen (A/F) sensor heater

Signal 1

B134

2

0 — 1.0

Waveform

Signal 2

B134

1

Rear oxygen sensor heater signal

B134

5

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)

B134

29

0

0

After engine is warmed up.

Air flow sensor

Signal

B136

31

0.3 — 4.5

Shield

B136

24

0

0

Ground

B136

22

0

0

Intake air temperature sensor signal

B136

9

0.3 — 4.6

0.3 — 4.6

Starter switch

B136

34

0

0

Model without push button start

Cranking: 8 — 14

Model with push button start

Cranking: waveform

Starter switch 2

B135

20

0

0

Model with push button start

Cranking: 8 — 14

Starter cut relay

B135

33

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

B136

35

10 — 13

12 — 14

When connected: 0

Knock sensor

Signal

B134

9

2.8

2.8

Shield

B134

20

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

B134

28

5

5

Ignition control

#1

B134

11

0

0 — 5

Waveform

#2

B134

12

0

0 — 5

Waveform

#3

B134

21

0

0 — 5

Waveform

#4

B134

22

0

0 — 5

Waveform

Fuel injector

#1

B134

15

10 — 13

1 — 14

Waveform

#2

B134

16

10 — 13

1 — 14

Waveform

#3

B134

25

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

23

0 or 10 — 13

0 or 12 — 14

Signal A−

B134

24

0 or 10 — 13

0 or 12 — 14

Signal B+

B134

13

0 or 10 — 13

0 or 12 — 14

Signal B−

B134

14

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

B134

28

5

5

Ground

(sensor)

B134

29

0

0

A/C middle pressure switch

B136

15

ON: 0

OFF: 4.5 — 5.5

ON: 0

OFF: 4.5 — 5.5

Front oxygen (A/F) sensor

Signal (+)

B137

23

1.2 — 3.2

1.2 — 3.2

Signal (−)

B137

14

1.2 — 2.7

1.2 — 2.7

Shield

B137

31

0

0

SSM/GST communication line

B135

14

1← → 4

1← → 4

Ground (injector)

B134

7

0

0

Ground (power supply)

B134

6

0

0

B135

5

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

Intake camshaft position sensor (LH)

B137

13

0 — 0.9

ON: 0

OFF: 4.7 — 5.3

Waveform

Intake camshaft position sensor (RH)

B137

12

0 — 0.9

ON: 0

OFF: 4.7 — 5.3

Waveform

Electronic throttle control

Main

B134

19

0.4 — 0.7

Fully opened: 4.0 — 4.7

0.4 — 0.7

(After engine is warmed up.)

Sub

B134

18

4.2 — 4.8

Fully opened: 0.1 — 0.3

4.2 — 4.8

(After engine is warmed up.)

Shield

B137

27

0

0

Power supply

B134

28

5

5

Ground

(sensor)

B134

29

0

0

Electronic throttle control motor 1 (+)

B137

3

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 2 (+)

B137

2

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 1 (−)

B137

5

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle control motor 2 (−)

B137

4

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

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

B135

23

Fully closed: 1

Fully opened: 3.0 or more

Fully closed: 1

Fully opened: 3.0 or more

Power supply

B135

29

5

5

Ground (sensor)

B135

21

0

0

Shield

B136

30

0

0

Accelerator pedal position sensor (sub)

Signal

B135

31

Fully closed: 1

Fully opened: 3.0 or more

Fully closed: 1

Fully opened: 3.0 or more

Power supply

B135

30

5

5

Ground (sensor)

B135

22

0

0

Clutch switch

B136

25

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

11

Less than 1 ←→ more than 4

Less than 1 ←→ more than 4

Signal 2

B135

12

Less than 1 ←→ more than 4

Less than 1 ←→ more than 4

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 Wiring System.

*2

Refer to “Starter System” in Wiring System.

*3

Refer to “Power Supply Circuit” in Wiring System.