Suzuki Grand Vitara JB416 / JB420. Manual - part 44

1A-125 Engine General Information and Diagnosis: 

Step

Action

Yes

No

1

Was “Engine and Emission Control System Check” 
performed?

Go to Step 2.

Go to “Engine and 
Emission Control 
System Check”.

2

Knock sensor circuit check
1) Remove ECM from its bracket with ECM connectors 

connected.

2) Measure voltage between “C37-56” terminal of ECM 

connector and vehicle body ground with engine running.

Is voltage within 1.23 – 3.91 V?

Intermittent trouble. 
Check for intermittent 
referring to “Intermittent 
and Poor Connection 
Inspection in Section 
00”. If OK, substitute a 
known-good ECM and 
recheck.

Go to Step 3.

3

Knock sensor circuit for open check
1) Disconnect connector from knock sensor with ignition 

switch turned OFF.

2) Turn ON ignition switch, measure voltage between 

“WHT” wire of knock sensor connector and engine 
ground.

Is voltage 4 – 6 V?

Go to Step 6.

Go to Step 4.

4

Knock sensor circuit for open check
1) Turn ON ignition switch, measure voltage between “C37-

56” terminal of ECM connector and engine ground

Is voltage 4 – 6 V?

“WHT” wire is open 
circuit.

Go to Step 5.

5

Knock sensor circuit for short check
1) Disconnect connectors from ECM with ignition switch 

turned OFF.

2) Measure resistance between “C37-56” terminal of ECM 

connector and vehicle body ground.

Is resistance infinity?

Go to Step 6.

“WHT” wire is shorted to 
ground circuit.
If wire is OK, substitute 
a known-good ECM and 
recheck.

6

Knock sensor circuit for short check
1) Disconnect connectors from ECM with ignition switch 

turned OFF.

2) Turn ON ignition switch, measure voltage between “C37-

56” terminal of ECM connector and vehicle body ground.

Is voltage 0 V?

Go to Step 7.

“WHT” wire is shorted to 
other circuit.

7

Knock sensor circuit for high resistance check
1) Turn OFF ignition switch, measure resistance between 

“C37-56” terminal of ECM connector and “RED” wire 
terminal of knock sensor harness connector.

Is resistance below 5 

Ω

?

Faulty knock sensor.

“WHT” wire is high 
resistance circuit.

I2RH01110089-01

Engine General Information and Diagnosis:  1A-126

DTC P0335: Crankshaft Position (CKP) Sensor Circuit (For J20 Engine)

S5JB0A1104089

Wiring Diagram

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Crank engine for 3 – 5 sec.
4) Check DTC and pending DTC.

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

12V

5V

BLU/BLK

BLU/BLK

BLK/RED

BLK/RED

BLK/RED

BLU

5

4

13

3

E23-29  

E23-1  

E23-60  

E23-16  

7

BLK/YEL

BLK/YEL

BLK/YEL

C37-22

BLK/WHT

BLK/YEL

BLK/YEL

BLK/YEL

[A]: BLK/RED
[B]: BLK

6

12

11

14

WHT/GRN

WHT/RED

8

BLK/RED

10

BLK

BLU/BLK

9

C37-15  

C37-29  
C37-48  

BLK/ORN

C37-58  

C37-30  BLK/ORN

BLK/YEL
BLK/YEL
BLK/YEL

BLU

PNK

C37-36

C37-51

BLK

1

2

15

I5JB0A110047-02

[A]: For A/T model

5. Ignition switch

11. “ST” fuse

[B]: For M/T model

6. Starting motor

12. “ST SIG” fuse

1. CKP sensor

7. Starting motor control relay

13. “IG COIL” fuse

2. Sensor plate on crankshaft

8. Transmission range switch (for A/T model)

14. “IGN” fuse

3. ECM

9. Fuse box No.2

15. Starting motor magnet clutch

4. Main relay

10. “FI” fuse

DTC detecting condition

Trouble area

No CKP sensor signal for 2 sec. even if starting motor 
signal is inputted at engine cranking.
(1 driving cycle detection logic)

• CKP sensor circuit open or short
• Sensor plate teeth damaged
• CKP sensor malfunction, foreign material being attached 

or improper installation

• ECM
• Engine start signal circuit malfunction

1A-127 Engine General Information and Diagnosis: 

DTC Troubleshooting

NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to 
“Precautions For DTC Troubleshooting”.

 

Step

Action

Yes

No

1

Was “Engine and Emission Control System Check” 
performed?

Go to Step 2.

Go to “Engine and 
Emission Control 
System Check”.

2

CKP sensor and connector for proper installation check

Is CKP sensor installed properly and connector connected 
securely?

Go to Step 3.

Correct.

3

Wire circuit check
1) Disconnect connector from CKP sensor with ignition 

switch turned OFF.

2) Check for proper connection to CKP sensor at “PNK” 

and “BLU” wire terminals.

3) If OK, measure voltage between engine ground and 

each “PNK” and “BLU” wire terminals of CKP sensor 
connector with ignition switch turned ON.

Is each voltage 0 V?

Go to Step 4.

“PNK” wire and/or “BLU” 
wire is shorted to other 
circuit.

4

Wire circuit check
1) Disconnect connectors from ECM with ignition switch 

turned OFF.

2) Check for proper connection to ECM at “C37-36” and 

“C37-51” terminals.

3) If OK, measure resistance between engine ground and 

each “C37-36” and “C37-51” terminals of ECM 
connector.

Is each resistance infinity?

Go to Step 5.

“PNK” wire and/or “BLU” 
wire is shorted to 
ground circuit.

5

Wire circuit check
1) Measure resistance at following connector terminals.

• Between “C37-51” terminal of ECM connector and 

“BLU” wire terminal of CKP sensor connector

• Between “C37-36” terminal of ECM connector and 

“PNK” wire terminal of CKP sensor connector

Is each resistance below 5 

Ω

?

Go to Step 6.

“PNK” wire and/or “BLU” 
wire is open or high 
resistance.

6

Engine start signal check
1) Check starting motor circuit for opening and short 

referring to Step 2 of “DTC P0616: Starter Relay Circuit 
Low” and Step 3 and 4 of “DTC P0617: Starter Relay 
Circuit High”.

Is check result satisfactory?

Go to Step 7.

Repair or replace.

7

CKP sensor check
1) Check CKP sensor and sensor plate tooth referring to 

“Camshaft Position (CMP) Sensor Inspection in Section 
1C”.

Is check result satisfactory?

Substitute a known-
good ECM and recheck.

Replace CKP sensor 
and/or sensor plate.

Engine General Information and Diagnosis:  1A-128

DTC P0335: Crankshaft Position (CKP) Sensor Circuit (For M16 Engine)

S5JB0A1104040

Wiring Diagram

DTC Detecting Condition and Trouble Area

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

12V

5V

BLK/RED

BLK/RED

BLK/RED

BLU

5

4

13

3

E23-29  

E23-60  

7

BLK/YEL

BLK/YEL

BLK/YEL

C37-22

BLK/WHT

BLK/YEL

BLK/YEL

BLK/YEL

6

12

11

14

WHT/GRN

WHT/RED

BLK/RED

10

E23-1  

BLK

9

C37-15  

C37-29  
C37-48  

BLK/ORN

C37-58  

C37-30  BLK/ORN

BLK/YEL
BLK/YEL
BLK/YEL

15

BLU/BLK

E23-16  

1

C37-51       

5V

2

BLK/YEL

WHT/BLU

BLU/BLK

BLU/BLK

BLU/BLK

8

I5JB0A110048-02

1. CKP sensor

6. Starting motor

11. “ST” fuse

2. Sensor plate on crankshaft

7. Starting motor control relay

12. “ST SIG” fuse

3. ECM

8. To CMP sensor

13. “IG COIL” fuse

4. Main relay

9. Fuse box No.2

14. “IGN” fuse

5. Ignition switch

10. “FI” fuse

15. Starting motor magnet clutch

DTC detecting condition

Trouble area

No CKP sensor signal for 2 sec. even if starting motor 
signal is inputted at engine cranking.
(1 driving cycle detection logic)

• CKP sensor circuit open or short
• Sensor plate teeth damaged
• CKP sensor malfunction, foreign material being attached 

or improper installation

• ECM
• Engine start signal circuit malfunction