ENGINE (DIAGNOSTICS)(H4SO) > 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 (+)

B134

13

0

−7 — +7

Sensor output waveform

Signal (−)

B134

14

0

0

Shield

B134

24

0

0

Camshaft position sensor

Signal (+)

B134

12

0

−7 — +7

Sensor output waveform

Signal (−)

B134

22

0

0

Shield

B134

24

0

0

Electronic throttle

Main

B134

18

0.64 — 0.72

Fully opened: 3.96

0.64 — 0.72

(After engine is warmed-up.)

Fully closed: 0.6

Fully opened: 3.96

Sub

B134

28

1.51 — 1.58

Fully opened: 4.17

1.51 — 1.58

(After engine is warmed-up.)

Fully closed: 1.48

Fully opened: 4.17

Electronic throttle motor (+)

B137

5

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle motor (−)

B137

4

Duty waveform

Duty waveform

Drive frequency: 500 Hz

Electronic throttle motor power supply

B136

1

10 — 13

12 — 14

Electronic throttle motor relay

B136

21

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

When ignition switch is turned to ON: ON

Accelerator pedal position sensor

Main sensor signal

B135

23

Fully closed: 0.7

Fully opened: 3.0

Fully closed: 0.7

Fully opened: 3.0

Main power supply

B135

21

5

5

GND (Main sensor)

B135

29

0

0

Sub sensor signal

B135

31

Fully closed: 0.7

Fully opened: 3.0

Fully closed: 0.7

Fully opened: 3.0

Sub power supply

B135

22

5

5

GND (Sub sensor)

B135

30

0

0

Rear oxygen sensor

Signal

B135

4

0

0 — 0.9

Shield

B135

1

0

0

Front oxygen (A/F) sensor heater

Signal 1

B136

3

10 — 13

1 — 14

Waveform

Signal 2

B136

2

10 — 13

1 — 14

Waveform

Rear oxygen sensor heater signal

B136

4

10 — 13

1 — 14

Waveform

Engine coolant temperature sensor

B134

34

1.0 — 1.4

1.0 — 1.4

After engine is warmed-up.

Tumble generator valve RH (open)

B137

22

0 or 10 — 13

0 or 12 — 14

Sensor output waveform

Tumble generator valve RH (closed)

B137

23

0 or 10 — 13

0 or 12 — 14

Sensor output waveform

Tumble generator valve LH (open)

B137

12

0 or 10 — 13

0 or 12 — 14

Sensor output waveform

Tumble generator valve LH (closed)

B137

13

0 or 10 — 13

0 or 12 — 14

Sensor output waveform

Tumble generator valve position sensor RH

Signal

B134

26

Fully closed: 3.8 — 4.8

Fully open: 0.2 — 0.8

Power supply

B134

19

5

5

GND (sensor)

B134

29

0

0

Tumble generator valve position sensor LH

Signal

B134

16

Fully closed: 3.8 — 4.8

Fully open: 0.2 — 0.8

Power supply

B134

19

5

5

GND (sensor)

B134

29

0

0

Starter switch

B136

32

0

0

Cranking: 8 — 14

Starter relay

B136

20

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

A/C switch

B136

24

ON: 10 — 13

OFF: 0

ON: 12 — 14

OFF: 0

Ignition switch

B135

19

10 — 13

12 — 14

Neutral position switch

B136

31

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Switch is ON when select lever is shifted into “P” or “N” range.

Test mode connector

B135

27

10 — 13

13 — 14

When connected: 0

Knock sensor

Signal

B134

15

2.5

2.5

Shield

B134

25

0

0

Back-up power supply

B135

5

10 — 13

12 — 14

Ignition switch “OFF”: 10 — 13

Control module power supply

B134

7

10 — 13

12 — 14

B135

2

10 — 13

12 — 14

Sensor power supply

B134

19

5

5

Ignition control

#1, #2

B137

18

0

1 — 3.4

Waveform

#3, #4

B137

19

0

1 — 3.4

Waveform

Fuel injector

#1

B137

8

10 — 13

1 — 14

Waveform

#2

B137

9

10 — 13

1 — 14

Waveform

#3

B137

10

10 — 13

1 — 14

Waveform

#4

B137

11

10 — 13

1 — 14

Waveform

Fuel pump relay control

B136

12

ON: 0.5 or less

OFF: 10 — 13

0.5 or less

A/C relay control

B136

9

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Radiator fan relay 1 control

B136

18

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Radiator fan relay 2 control

B136

29

ON: 0.5 or less

OFF: 10 — 13

ON: 0.5 or less

OFF: 12 — 14

Self-shutoff control

B136

23

0.5 or less

0.5 or less

Malfunction indicator light

B136

11

Light “ON”: 1 or less

Light “OFF”: 10 — 14

Engine speed output

B136

22

0 — 13 or more

Waveform

Purge control solenoid valve

B137

29

ON: 1 or less

OFF: 10 — 13

ON: 1 or less

OFF: 12 — 14

Waveform

EGR solenoid valve

Signal 1

B134

8

10 — 13

0 or 12 — 14

Signal 2

B134

9

10 — 13

0 or 12 — 14

Signal 3

B134

10

10 — 13

0 or 12 — 14

Signal 4

B134

20

10 — 13

0 or 12 — 14

Power steering switch

B134

33

ON: 1 or less

OFF: 10 — 13

ON: 1 or less

OFF: 12 — 14

Blower fan switch

B135

16

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

A/C middle pressure switch

B136

33

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Front oxygen (A/F) sensor signal (−)

B135

8

2.05 — 2.25

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

B135

9

1.75 — 1.95

Front oxygen (A/F) sensor shield

B135

1

0

0

Manifold absolute pressure sensor

B134

6

3.4 — 3.8

1.4 — 1.8

Air flow sensor

Signal

B135

26

0.3 — 4.5

Shield

B135

35

0

0

Ground

B135

34

0

0

Intake air temperature sensor

B135

18

3.15 — 3.33

3.15 — 3.33

Intake air temperature: 25°C (77°F)

Generator control

B136

10

0 — 6.5

0 — 6.5

SSM communication

B136

16

1 or less ←→ 4 or more

1 or less ←→ 4 or more

Fuel level sensor

B135

10

0.3 — 4.5

0.3 — 4.5

Vehicle speed signal

B136

13

0 or 5

0 or 5

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

Small light switch

B135

15

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Rear defogger switch

B135

14

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Wiper switch

B135

25

When wiper is operated: 10 — 13

OFF: 0

When wiper is operated: 12 — 14

OFF: 0

GND

(sensor)

B134

29

0

0

(Engine 1)

B134

5

0

0

(Engine 2)

B137

7

0

0

(Engine 3)

B137

2

0

0

(Engine 4)

B137

1

0

0

(Engine 5)

B137

3

0

0

(Ignition 1)

B137

26

0

0

(Ignition 2)

B137

6

0

0

(Body)

B136

6

0

0

Cruise control set light

B135

3

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Main light

B135

6

ON: 0

OFF: 10 — 13

ON: 0

OFF: 12 — 14

Cruise control command switch

B135

24

When not operating: 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 not operating: 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

Cruise control main switch

B135

12

ON: 0

OFF: 5

ON: 0

OFF: 5

Brake switch 1

B135

20

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

28

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

Clutch switch

B136

25

When clutch pedal is depressed: 0

When brake pedal is released: 10 — 13

When clutch pedal is depressed: 0

When brake pedal is released: 12 — 14

CAN communication

Signal (+)

B136

27

Pulse waveform

Signal (−)

B136

35

Pulse waveform

Immobilizer output 1

B136

26

1 or less ←→ 4 or more

1 or less ←→ 4 or more

Immobilizer output 2

B136

34

1 or less ←→ 4 or more

1 or less ←→ 4 or more