Suzuki Grand Vitara JB627. Manual - part 160

3C-44 Transfer: 

DTC C1246: Clutch Pedal Position (CPP) Switch Circuit Short

S6JB0B3304025

Wiring Diagram

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) Clear DTC using scan tool.
2) Start engine and drive vehicle at 50 km/h (31 mile/h) or more vehicle speed at least for 1 min.
3) Stop vehicle and check DTC.

12V

E91-7

BLK/ORN

1

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

[A]

I5JB0A332020-01

[A]: 4WD control module connector “E91” (viewed from harness side)

2. 4WD control module

1. CPP switch

DTC detecting condition

Trouble area

CPP switch signal is input when vehicle speed is 30 km/h (19 
mph).

• CPP switch
• CPP switch circuit
• 4WD control module

Transfer: 3C-45

Troubleshooting

Step

Action

Yes

No

1

Was “4WD control system check” performed?

Go to Step 2.

Go to “4WD Control 
System Check”.

2

CPP switch circuit check
1) Disconnect CPP switch connector with ignition switch 

OFF.

2) Check for proper connection to terminal of CPP switch 

connector.

3) If connection is OK, measure voltage between “BLK/

ORN” terminal of CPP switch connector and vehicle 
body ground with ignition switch ON.

Is it 10 – 14 V?

Go to Step 3.

Go to Step 4.

3

CPP switch check
1) Check CPP switch referring to “Clutch Pedal Position 

(CPP) Switch Inspection and Adjustment in Section 5C”.

Is switch in good condition?

Substitute a known-
good 4WD control 
module and recheck.

Replace CPP switch.

4

Wire harness check
1) Disconnect connector from 4WD control module 

connector “E91” with ignition switch OFF.

2) Check for proper connection to “E91-7” terminal of 4WD 

control module connector.

3) If OK, measure resistance between “BLK/ORN” terminal 

of CPP switch connector and “E91-7” terminal of 4WD 
control module connector.

Is it 1 M

Ω

 or more?

Substitute a known-
good 4WD control 
module and recheck.

“BLK/ORN” wire is 
shorted to ground 
circuit.

3C-46 Transfer: 

DTC U1073: Control Module Communication Bus Off

S6JB0B3304026

Wiring Diagram

WHT

RED

WHT

RED

G44-18

G44-19

G44

[A]

[B]

[C]

[G]

1

2

3

4

5

6

7

8

9

10

11

14

15

16
36

34 33 32 31 30 29

24 23

37

18

19

20

G28-8

G28-10

WHT/BLU

WHT/BLU

WHT/RED

WHT/RED

E23-4
E23-19

WHT

RED

E03-12

E03-10

E03-6

E03-8

WHT

RED

E92-17

E92-7

WHT

RED

E91-22
E91-23

WHT

RED

G31-1
G31-3

6

5

16 15 14 13 12 11

4 3

24 23

21

22

10 9

8

7

2

1

19

20

18 17

E92

17 16

26 25

15 14

6

5

3

4

2

13 12

23 22

24

11 10 9

21 20 19

8 7

18

1

E93

2 1

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

5453

59

60

58

2

26

27

28

15

30

56

48

32 31

34

35

36

37

40

42

3938

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

5453

59

60

58

26

27

28

15
30

56

48

32 31

34

35

36

37

40

42

3938

44

45

43

41

33

12

13

23

8

1

2

3

4

5

6

7

8

9

10

11

17

1615141312

2221201918

G28

[E]

G31

1

2

3

4

7

8

9

10

11

14

15

16
36

34

35

24 23

21

22

28 27

25

26

37

39 38

40

18 17

13 12

19

20

[D]

E03

15
16
17
18
19
20
21
22
23
24
25

2
3
4
5
6
7
8
9

10
11
12

1

13

14

26

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

[F]

E91

WHT

RED

G31-2
G31-4

[H]

8

7

6

5

4

3

2

1

9

10

11

12

13

14

15

16

1

2

3

4

8

5

6

7

[I]

E53

16

1

15

2

3

4

5

6

7

8

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

9

E53-13

E53-42

E53-44

E53-46

I6JB01331002-02

[A]: Keyless start control module connector (if equipped) (viewed from harness side)

1. BCM

[B]: ECM connector (viewed from harness side)

2. 4WD control module

[C]: TCM connector (for A/T model) (viewed from harness side)

3. TCM (for A/T model)

Transfer: 3C-47

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) Clear DTC using scan tool.
2) Start engine and run it for 1 min. or more.
3) Stop vehicle and check DTC.

Troubleshooting

[D]: ABS hydraulic unit / control module connector (viewed from terminal side)

4. Keyless start control module (if equipped)

[E]: Combination meter connector (viewed from harness side)

5. ECM

[F]: 4WD control module connector (viewed from harness side)

6. ABS hydraulic unit / control module (if equipped)

[G]: BCM connector (viewed from harness side)

7. Combination meter

[H]: DLC (viewed from harness side)

8. DLC

[I]: ESP

® hydraulic unit / control module connector (viewed from terminal side)

9. ESP

® hydraulic unit / control module (if equipped)

DTC detecting condition

Trouble area

Transmission error of communication data for 4WD control 
module is detected more than 7 times at more than specified 
error counts continuously.

• CAN communication circuit
• ECM
• BCM
• 4WD control module
• TCM
• Combination meter
• Keyless start control module (if equipped)
• ABS or ESP

® hydraulic unit / control module

Step

Action

Yes

No

1

Was “4WD control system check” performed?

Go to Step 2.

Go to “4WD Control 
System Check”.

2

Control module connector check
1) Check connection of connectors of all control modules 

communicating by means of CAN.

2) Recheck DTC in TCM.

Is DTC U1073 detected?

Go to Step 3.

Intermittent trouble. 
Check for intermittent 
referring to “Intermittent 
and Poor Connection 
Inspection in Section 
00”.

3

CAN communication circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connectors of all control modules 

communicating by means of CAN.

3) Check CAN communication circuit between control 

modules for open, short and high resistance.

Is each CAN communication circuit in good condition?

Go to Step 4.

Repair circuit.

4

Check DTC
1) Turn ignition switch to OFF position.
2) Disconnect each connector.

• ECM
• ABS or ESP

® hydraulic unit / control module

• BCM
• TCM (if equipped)
• Keyless start control module (if equipped)

3) Recheck DTC in 4WD control module.

Is DTC U1073 detected?

Check 4WD control 
module power and 
ground circuit. If circuits 
are OK, substitute a 
known-good 4WD 
control module and 
recheck.

Check applicable 
control module power 
and ground circuit. If 
circuit is OK, substitute 
a known-good 
applicable control 
module and recheck.