Suzuki Grand Vitara JB627. Manual — part 411

10A-10 Cruise Control System:

DTC P0565: Cruise Control On Signal

S6JB0BA104009

Wiring Diagram

DTC Detecting Condition and Trouble Area

Cruise control cannot be
cancelled

CANCEL switch faulty

Check CANCEL switch for function referring to
“Cruise Control Switch Inspection”
.

Brake light switch faulty

Check brake light switch for function referring
to “Brake Light Switch Inspection”.

CPP switch faulty (M/T model)

Check CPP switch for function referring to
“Clutch Pedal Position (CPP) Switch (for
Cruise Control) Inspection and Adjustment”.

Wiring or grounding faulty

Repair.

ECM faulty

Replace after making sure that none of above
parts is faulty.

Cruise control at vehicle
speed stored in memory
cannot be resumed after
cruise control was
cancelled by means other
than MAIN (ON/OFF)
switch

RES/ACC switch faulty

Check RES/ACC switch for function referring
to “Cruise Control Switch Inspection”.

Wiring or grounding faulty

Repair.

ECM faulty

Replace after making sure that none of above
parts is faulty.

Condition

Possible cause

Correction / Reference Item

BLK/YEL

WHT/GRN

2

1

1

3 2

4

5

6

7

8

9

1110

12

13

14

15

16

17

18

19

20

17

18

19

20

21

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23

24

25

26

27

28

29

30

31

33

34

35

36

37

38

39

40

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

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42

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49

50

51

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53

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59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

C37

E23

5V

E23-39

E23-38

BLK/WHT

LT GRN

BLK/YEL

BLU/BLK

3

4

5

6

7

E23-31

I6JB01A10005-01

1. Circuit fuse

3. Cruise control switch assembly

5. RES/ACC switch

7. CANCEL switch

2. ECM

4. MAIN (ON/OFF) switch

6. SET/COAST switch

DTC detecting condition

Trouble area

MAIN (ON/OFF) switch signal voltage is higher than
specified value for 15 seconds continuously

• Cruise control switch and/or its circuit
• ECM

Cruise Control System: 10A-11

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Start engine and warm up to normal operating temperature.
4) Press cruise main switch once.
5) Drive vehicle at 40 km/h (25 mph) or higher for 3 min. or more.
6) Stop vehicle.
7) Check DTC.

DTC Troubleshooting

NOTE
Before this troubleshooting, read and observe “Precautions for DTC Troubleshooting in Section 1A”

Step

Action

Yes

No

1

Cruise control switch check
1) Check cruise control switch referring to “Cruise Control

Switch Inspection”.

Is it in good condition?

Go to Step 2.

Replace cruise control
switch.

2

Cruise control MAIN (ON/OFF) switch circuit check
1) Disconnect connectors from ECM with ignition switch

turned OFF.

2) Check for proper connection of cruise control switch

circuit terminal to ECM connector.

3) If connections are OK, check the following for cruise

MAIN (ON/OFF) switch circuit.
Voltage of between “BLK/WHT” wire terminal of cruise
control switch connector and vehicle body ground is 0 V
with ignition switch tuned ON (power short check)

Is it in good condition?

Substitute a known-
good ECM and recheck.

Repair or replace wire
circuit.

10A-12 Cruise Control System:

DTC P0566 / P0567 / P0568: Cruise Control Off Signal / Resume Signal / Set Signal

S6JB0BA104010

Wiring Diagram
Refer to “DTC P0565: Cruise Control On Signal”.

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Start engine and warm up to normal operating temperature.
4) Press cruise main switch once.
5) Drive vehicle at 40 km/h (25 mph) or higher for 3 min. or more.
6) Stop vehicle.
7) Check DTC.

DTC Troubleshooting

NOTE
Before this troubleshooting, read and observe “Precautions for DTC Troubleshooting in Section 1A”.

DTC detecting condition

Trouble area

P0566:
CANCEL switch signal voltage is lower than specified value
for 40 seconds continuously
P0567:
RES/ACC switch signal voltage is specified value for 120
seconds continuously
P0568:
SET/COAST switch signal voltage is specified value for 120
seconds continuously

• Cruise control switch and/or its circuit
• ECM

Step

Action

Yes

No

1

Cruise control switch check
1) Check cruise control switch referring to “Cruise Control

Switch Inspection”.

Is it in good condition?

Go to Step 2.

Replace cruise control
switch.

2

Cruise control command switch circuit check
1) Disconnect connectors from ECM with ignition switch

turned OFF.

2) Check for proper connection of cruise control switch

circuit terminal to ECM connector.

3) If connections are OK, check the following for cruise

command switch circuit.
• Resistance between “LT GRN” wire terminal and

“BLK/YEL” wire terminal of cruise control switch
connector are infinity (no continuity check)

• Resistance between “LT GRN” wire terminal of cruise

control switch connector and vehicle body ground is
infinity (ground short check)

Is it in good condition?

Substitute a known-
good ECM and recheck.

Repair or replace wire
circuit.

Cruise Control System: 10A-13

DTC P0571: Brake Switch Circuit

S6JB0BA104011

Wiring Diagram

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Start engine and warm up to normal operating temperature.
4) Drive vehicle at 50 km/h (31 mph) or higher for 3 min. or more.
5) Stop vehicle.
6) Depress brake pedal for 3 times.
7) Check DTC.

BLK/YEL

WHT/GRN

GRN/WHT

E23-30

GRN/WHT

GRN

E23-32

BLU/BLK

WHT

YEL/GRN

1

3

2

4

5

6

6

1

3 2

4

5

6

7

8

9

1110

12

13

14

15

16

17

18

19

20

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

33

34

35

36

37

38

39

40

32

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

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43

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46

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51

52

53

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58

59

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61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

C37

E23

I6JB01A10006-01

1. Brake light switch

3. Brake pedal position switch

5. Brake light

2. Stop lamp switch

4. ECM

6. Circuit fuse

DTC detecting condition

Trouble area

Both brake light switch signal voltage and brake pedal
position switch signal voltage remain at low level for
specified time continuously

• Brake light switch and/or its circuit
• ECM

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