Suzuki Grand Vitara JB416 / JB420 / JB419. Manual - part 195

1G-53 Fuel System: For Diesel Engine Model

Special Tools and Equipment

Recommended Service Material

S6JB0A1728001

NOTE
Required service material is also described in the following.
“Injection Pump Components: For Diesel Engine Model”

 

Special Tool

S6JB0A1728002

09911–75410

09911–75420

Diesel injection-line wrench

Crow foot flare-nut wrench

DM.19A) / ) / ) / )

18.17)

09912–96510

09912–96520

Injection pump pulley 
remover

Adaptation crow

Mot. 1525)

Mot. 1525-03)

09912–96530

09919–47020

Injection pump pulley 
locking

Quick joint remover

Mot. 1668) / )

)

SUZUKI scan tool
—
This kit includes following 
items. 1. Tech 2, 2. PCMCIA 
card, 3. DLC cable, 4. SAE 
16/19 adapter, 5. Cigarette 
cable, 6. DLC loop back 
adapter, 7. Battery power 
cable, 8. RS232 cable, 9. 
RS232 adapter, 10. RS232 
loop back connector, 11. 
Storage case, 12.)

Ignition System: For Petrol Engine Model 1H-1

Engine

Ignition System

For Petrol Engine Model

General Description

Ignition System Construction

S6JB0A1801001

The ignition system is an electronic (distributor less) 
ignition system. Especially a direct ignition system is 
adopted for J20 engine. They consists of the parts as 
described below.
• ECM

It detects the engine and vehicle conditions through 
the signals from the sensors, determines the most 
suitable ignition timing and time for electricity to flow 
to the primary coil and sends a signal to the ignitor 
(power unit) in the ignition coil assembly.

• Ignition coil assembly (including an ignitor and an 

ignition coil)
The ignition coil assembly has a built-in ignitor which 
turns ON and OFF the current flow to the primary coil 
according to the signal from ECM. When the current 
flow to the primary coil is turned OFF, a high voltage is 
induced in the secondary coil.

• High-tension cords (for M16 engine) and spark 

plugs

• CMP sensor (Camshaft position sensor) and CKP 

sensor (Crankshaft position sensor)
Using signals from these sensors, ECM identifies the 
specific cylinder whose piston is in the compression 
stroke, detects the crank angle and adjusts initial 
ignition timing automatically.

• TP sensor, ECT sensor, MAP sensor, MAF sensor, 

IAT sensor, knock sensor, wheel speed sensor 
(VSS) and other sensors / switches

For M16 engine, this ignition system does not have a 
distributor, it has two ignition coil assemblies (one is for 
No.1 and No.4 spark plugs and the other is for No.2 and 
No.3 spark plugs). When an ignition signal is sent from 
ECM to the ignitor in the ignition coil assembly for No.1 
and No.4 spark plugs, a high voltage is induced in the 
secondary coil and that passes through the high-tension 
cords and causes No.1 and No.4 spark plugs to spark 
simultaneously. Likewise, when an ignition signal is sent 
to the ignitor in the other ignition coil assembly, No.2 and 
No.3 spark plugs spark simultaneously.
For J20 engine, although ignition system does not have 
a distributor and high-tension cords but each cylinder 
has an ignition coil assembly (ignitor and ignition coil) 
and the secondary voltage which occurred in the ignition 
coil is sent to the spark plug directly. Also, the signal (s) 
are sent from the CMP sensor to ECM so as to control 
each ignition coil independently through the ignitor (in 
ignition coil assembly).

1H-2 Ignition System: For Petrol Engine Model

Schematic and Routing Diagram

Ignition System Wiring Circuit Diagram

S6JB0A1802001

E23

C37

3

4

18

19

5

6

7

10

11

17

20

47

46

49

50

51

21

22

52

16

25

9

24

14
29

55

57

54 53

59

60

58

2

26

27

28

15
30

56

48

32

31

34

35

36

37

40

42

39 38

44

45

43

41

33

1

12

13

23

8

3

4

18

19

5

6

7

10

11

17

20

47

46

49

50

51

21

22

52

16

25

9

24

14
29

55

57

54 53

59

60

58

2

26

27

28

15
30

56

48

32

31

34

35

36

37

40

42

39 38

44

45

43

41

33

1

12

13

23

8

E23-60

E23-29  

12V

5V

E23-1

 E23-16

BLK/WHT

BLU/BLK

BLU/BLK

BLU/BLK

BLK/RED

BLK/RED

BLK/RED

BLK/YEL

WHT/GRN

BLK

BLU

BLK/ORN

1

2

11

C37-15

C37-29

C37-48

13

14

15

16

17

5

6

BLK/YEL

C37-51

5V

5V

C37-52

WHT/RED

WHT/BLU

5V

5V

BLK/WHT

BLK/WHT

BRN/BLK

BRN

C37-20

C37-21

BLK/ORN

BLK/ORN

C37-30

BLK/ORN

BLK/YEL

BLK/YEL

BLK/YEL

C37-58  

[A]

[B]

3

4

7

8

9

10

12

E23-60

E23-29  

12V

5V

E23-1

 E23-16

BLK/WHT

BLU/BLK

BLU/BLK

BLU/BLK

BLK/RED

BLK/RED

BLK/RED

BLK/YEL

WHT/GRN

BLU

BLK/ORN

1

2

11

C37-15

C37-29

C37-48

13

14

15

16

17

5

6

BLK/YEL

5V

C37-52

WHT/RED

5V

5V

BLK/WHT

BRN/BLK

BRN

C37-20

C37-21

5V

5V

BLK/WHT

BRN/YEL

BRN/WHT

C37-18

C37-19

BLK/ORN

BLK/ORN

BLK/ORN

BLK/ORN

C37-30

BLK/ORN

BLK/YEL

BLK/YEL

BLK/YEL

C37-58  

C37-51

C37-36

BLU

PNK

BLK

7

8

9

10

18

20

19

21

12

BLK

I5JB0A180001-02

[A]: For M16 engine

7. No.1 spark plug

15. “FI” fuse

[B]: For J20 engine

8. No.2 spark plug

16. Junction block

1. Ignition switch

9. No.3 spark plug

17. “IG COIL” fuse

Ignition System: For Petrol Engine Model 1H-3

2. Main relay

10. No.4 spark plug

18. Ignition coil assembly for No.1

3. Ignition coil assembly for No.1 and No.4 spark 

plugs

11. Sensed information (MAP sensor, ECT 

sensor, MAF and IAT sensor, TP sensor, 
Knock sensor, wheel speed signal (ABS), 
Electric load signal, Engine start signal, 
Torque reduction signal (TCM))

19. Ignition coil assembly for No.2

4. Ignition coil assembly for No.2 and No.3 spark 

plugs

12. ECM

20. Ignition coil assembly for No.3

5. CMP sensor

13. Fuse box No.2

21. Ignition coil assembly for No.4

6. CKP sensor

14. “IGN” fuse