Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 19

1A-23 Engine General Information and Diagnosis: For Petrol Engine Model

Connector: E23

10

GRN/WHT

CO adjusting resistor signal (if 
equipped)

40

RED

Throttle position sensor (sub) 
signal

11

RED

Oxygen signal of heated 
oxygen sensor-2

41

GRN

Ground for throttle position 
sensor

12

GRY/BLK

A/C refrigerant pressure 
sensor signal (A/C model)

42

—

—

13

GRN/BLK

EVAP canister purge valve 
output

43

—

—

14

GRY/RED

Output of 5 V power source for 
MAP sensor, A/C refrigerant 
pressure sensor, electric load 
current sensor (J20A engine) 
and CO adjusting resistor (if 
equipped)

44

BLU/RED

Output of throttle actuator

15

BLK/ORN

Ground for ECM

45

BLU/YEL

Output of throttle actuator

16

PNK/GRN

Fuel injector No.3

46

—

—

17

PNK/BLU

Fuel injector No.4

47

BLK/RED

Heater output of heated 
oxygen sensor-2

18

BRN/YEL

Ignition coil No.4
(J20A engine)

48

BLK/YEL

Ground for ECM

19

BRN/WHT

Ignition coil No.3
(J20A engine)

49

—

—

20

BRN/BLK

Ignition coil No.2 and No.3
(M16A engine)

50

—

—

Ignition coil No.2
(J20A engine)

21

BRN

Ignition coil No.1 and No.4
(M16A engine)

51

WHT/BLU

CKP sensor signal (M16A 
engine)

Ignition coil No.1
(J20A engine)

BLU

Crankshaft position (CKP) 
sensor (+)
(J20A engine)

22

BLK/YEL

Starting motor signal

52

WHT/RED

CMP sensor signal

23

—

—

53

WHT

Output for 5 V power source of 
throttle position sensor

24

PPL/YEL

Engine coolant temp. (ECT) 
sensor signal

54

BLK

Throttle position sensor (main) 
signal

25

LT GRN

Intake air temp. (IAT) sensor 
signal

55

RED/WHT

Manifold absolute pressure 
(MAP) sensor signal

26

RED

Mass air flow (MAF) sensor 
signal

56

WHT

Knock sensor signal

27

BLU

Ground for MAF sensor

57

GRY/GRN

Ground for sensors

28

BRN/BLK

Generator control signal output

58

BLK/YEL

Ground for ECM

29

BLK/YEL

Ground for ECM

59

BRN/YEL

Oil control valve ground
(M16A engine)

30

BLK/ORN

Ground for ECM

60

BRN/WHT

Oil control valve output
(M16A engine)

Terminal

Wire color

Circuit

Terminal

Wire color

Circuit

Terminal

Wire color

Circuit

Terminal

Wire color

Circuit

1

BLU/BLK

Main power supply

31

—

—

2

WHT

Power source for ECM internal 
memory

32

—

—

3

—

—

33

—

—

4

WHT/RED

CAN (high) communication line 
(active high signal) to ABS / 
ESP

® control module 

34

—

—

5

PPL/WHT

12 V serial communication line 
of data link connector 

35

—

—

Engine General Information and Diagnosis: For Petrol Engine Model 1A-24

6

BLK/WHT

Cruise control main switch 
signal (cruise control model)

36

—

—

7

BLU

Clutch pedal position switch 
signal (cruise control model)

37

—

—

8

YEL/GRN

Brake pedal position switch 
(cruise control model)

38

—

—

9

—

—

39

—

—

10

—

—

40

—

—

11

—

—

41

—

—

12

YEL

Diagnosis switch terminal (if 
equipped)

42

—

—

13

PNK/BLU

Clock signal for immobilizer 
coil antenna (immobilizer 
model)

43

—

—

14

—

—

44

—

—

15

WHT/GRN

Fuel pump relay output

45

—

—

16

BLU/BLK

Main power supply

46

RED/BLK

Radiator cooling fan relay No.1 
output

17

GRN

Power supply of throttle 
actuator drive circuit

47

RED

Radiator cooling fan relay No.2 
output

18

—

—

48

RED/YEL

Radiator cooling fan relay No.3 
output

19

WHT/BLU

CAN (low) communication line 
(active low signal) to ABS / 
ESP

® control module

49

PNK

A/C compressor relay output 
(A/C model)

20

GRN/WHT

Stop lamp switch signal

50

BLU/ORN

Throttle actuator control relay 
output

21

BLK/YEL

Cruise control command 
switch ground (cruise control 
model)

51

BLU/YEL

Ground for accelerator pedal 
position (APP) sensor (sub)

22

LT GRN

Cruise control command 
switch signal (cruise control 
model)

52

BLU/GRN

Accelerator pedal position 
(APP) sensor (sub) signal

23

—

—

53

ORN/BLU

Output for 5 V power source of 
accelerator pedal position 
(APP) sensor (sub)

24

YEL/RED

Fuel level sensor signal

54

ORN

Ground for accelerator pedal 
position (APP) sensor (main)

25

—

—

55

WHT/BLU

Accelerator pedal position 
(APP) sensor (main) signal

26

—

—

56

WHT

Output for 5 V power source of 
accelerator pedal position 
(APP) sensor (main)

27

—

—

57

—

—

28

GRY/BLU

Serial communication line for 
immobilizer coil antenna 
(immobilizer model)

58

—

—

29

BLK/WHT

Ignition switch signal

59

—

—

30

—

—

60

BLU

Main power supply relay output

Terminal

Wire color

Circuit

Terminal

Wire color

Circuit

1A-25 Engine General Information and Diagnosis: For Petrol Engine Model

Component Location

Electronic Control System Components Location

S6JB0A1113001

For J20 Engine

NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed 
at the opposite side.

 

I*

E*

11

F*

G*

D

H*

B*

e

n

3*

14*

C

A

15

h

1

2

12

J*

L

16*

7*

a

9

d

4

8

10

6

5

j

m

i

c

g

k

l

f

o

K

13

b

11-1

I5JB0A110016-04

Information sensors

Control devices

Others

1. MAF and IAT sensor

a: Fuel injector

A: ECM

2. Electric throttle body assembly (built-in 

throttle position sensor and throttle 
actuator)

b: EVAP canister purge valve

B: Combination meter

3. Stop lamp switch

c: Fuel pump relay

C: EVAP canister

4. ECT sensor

d: EGR valve

D: A/C evaporator outlet air temp. sensor (if equipped 

with A/C)

5. A/F sensor

e: Malfunction indicator lamp

E: Data link connector

6. Heated oxygen sensor-2

f: Radiator cooling fan relay No.1

F: 4WD control module (if equipped)

7. Battery

g: IMT vacuum solenoid valve

G: TCM (for A/T model)

8. CMP sensor

h: Ignition coil assembly (with ignitor)

H: BCM

9. MAP sensor

i: Main relay

I: Immobilizer coil antenna (if equipped)

10. CKP sensor

j: Integration relay No.2 (built-in HO2S heater 

relay, compressor relay and A/T relay)

J: Fuse box No.2

11. Main fuel level sensor

k: Radiator cooling fan relay No.2

K: A/C refrigerant pressure sensor (if equipped with A/

C)

11-1. Sub fuel level sensor

l: Radiator cooling fan relay No.3

L: ABS / ESP

® control module

12. Knock sensor

m: Starting motor control relay

13. Power steering pump pressure switch

n: Immobilizer indicator lamp (if equipped)

14. Accelerator pedal position (APP) 

sensor

o: Throttle actuator control relay

Engine General Information and Diagnosis: For Petrol Engine Model 1A-26

For M16 Engine

NOTE
The figure shows left-hand steering vehicle. For right-hand steering vehicle, parts with (*) are installed 
at the opposite side.

 

15. Rear wheel speed sensor (RH, LH) 

(VSS)

16. Electric load current sensor

Information sensors

Control devices

Others

I*

E*

D

H*

B*

e

n

3*

14*

C

J*

g

m

i

c

F

6

5

k

l

f

o

A

G

K

8

4

h

a

d

9

7*

2

1

b

12

10

j

13

15

11

11-1

I5JB0A110017-04

Information sensors

Control devices

Others

1. MAF and IAT sensor

a: Fuel injector

A: ECM

2. Electric throttle body assembly (built-in 

throttle position sensor and throttle 
actuator)

b: EVAP canister purge valve

B: Combination meter

3. Stop lamp switch

c: Fuel pump relay

C: EVAP canister

4. ECT sensor

d: EGR valve

D: A/C evaporator outlet air temp. sensor (if equipped 

with A/C)

5. A/F sensor

e: Malfunction indicator lamp

E: Data link connector

6. Heated oxygen sensor-2

f: Radiator cooling fan relay No.1

F: A/C compressor relay (if equipped)

7. Battery

g: HO2S heater relay

G: ABS / ESP

® control module 

8. CMP sensor

h: Ignition coil assembly (with ignitor)

H: BCM

9. MAP sensor

i: Main relay

I: Immobilizer coil antenna (if equipped)

10. CKP sensor

j: Oil control valve

J: Fuse box No.2

11. Main fuel level sensor

k: Radiator cooling fan relay No.2

K: A/C refrigerant pressure sensor (if equipped with A/C)

11-1. Sub fuel level sensor

l: Radiator cooling fan relay No.3

12. Knock sensor

m: Starting motor control relay

13. Power steering pump pressure switch

n: Immobilizer indicator lamp (if equipped)

14. Accelerator pedal position (APP) 

sensor

o: Throttle actuator control relay

15. Rear wheel speed sensor (RH, LH) 

(VSS)