Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual — part 99

10A-4 Cruise Control System:

Cruise Control System Wiring Diagram

S5JB0EA102001

IG1

+BB

+BB

IG1

E23-56

5V

5V

5V

5V

12V

12V

WHT

ORN

IG1

E23-6

E23-8

E23-7

E23-22

E23-21

E23-20

C37-58

C37-15

C37-29

C37-41

C37-40

C37-54

C37-53

C37-44

C37-45

E23-16

E23-60

E23-29

E23-1

C37-48

E23-55

E23-54

E23-53

E23-52

E23-51

WHT/BLU

BLK/WHT

LT GRN

BLK/YEL

YEL/GRN

BLU/BLK

BLU/BLK

BLU

BLK

GRN/WHT

GRN

BLK/YEL

BLK/YEL

BLU/BLK

BLK/WHT

BLU/RED

BLU/YEL

BLU/ORN

GRN

GRN

RED

BLK

WHT

BLU

BLU/BLK

BLK/ORN

BLK/ORN

BLK/YEL

BLU/GRN

BLU/YEL

ORN/BLU

C37-30

E23-50

E23-17

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

[A]

2

19

1

3

4

5
6

7

8

10

9

16

12

11

17

C37-28 BLK/YEL

14

15

21

22

18

20

WHT/BLU

WHT/RED

WHT/BLU

WHT/RED

E23-4
E23-19

WHT

RED

WHT

RED

I5JB0DA10001-01

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

8. Stop (brake) lamp switch

16. Ignition switch

1. ECM

9. CPP switch

17. Junction block assembly

2. Accelerator pedal position sensor

10. Brake lamp

18. ABS or ESP

® control module

3. Cruise control switch assembly

11. Electric throttle valve relay

19. Combination meter

4. MAIN (ON/OFF) switch

12. Electric throttle body assembly

20. Other control modules

5. RES/ACC switch

13. Main relay

21. “CRUISE” indicator lamp

6. SET/COAST switch

14. Transmission range switch (A/T model)

22. “SET” indicator lamp

7. CANCEL switch

15. Starting motor

Cruise Control System: 10A-5

Diagnostic Information and Procedures

Cruise Control System Symptom Diagnosis

S5JB0EA104001

NOTE

• ECM uses TCM, ABS or ESP

® control module and CAN communication to transmit and receive data

for cruise control. Therefore, check that no DTC is detected from ECM, TCM, ABS or ESP

® control

module before performing this Cruise Control System Symptom Diagnosis. If DTC is detected,
correct trouble indicated by that DTC first.

• Check each part in the order from the top of the following list.

Condition

Possible cause

Correction / Reference Item

CRUISE or SET indicator
lamp does not turn ON or
OFF

MAIN (ON/OFF) switch faulty

Check MAIN (ON/OFF) switch for function
referring to “Cruise Control Switch Inspection
in related manual”.

SET/COAST switch faulty

Check SET/COAST switch for function
referring to “Cruise Control Switch Inspection
in related manual”.

Stop (brake) lamp switch faulty

Check stop (brake) lamp switch for function
referring to “Stop (Brake) Lamp Switch
Inspection in related manual”.

Wiring or grounding faulty

Repair.

Combination meter faulty

Replace.

ECM faulty

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

Vehicle speed can not be
set

MAIN (ON/OFF) switch faulty

Check MAIN (ON/OFF) switch for function
referring to “Cruise Control Switch Inspection
in related manual”.

SET/COAST switch faulty

Check SET/COAST switch for function
referring to “Cruise Control Switch Inspection
in related manual”.

Stop (brake) lamp switch faulty

Check stop (brake) lamp switch for function
referring to “Stop (Brake) Lamp Switch
Inspection in related manual”.

CPP switch faulty (M/T model)

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

Wiring or grounding faulty

Repair.

ECM faulty

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

Acceleration or
deceleration is not
available by using RES/
ACC or SET/COAST
switch

RES/ACC or SET/COAST switch faulty Check RES/ACC or SET/COAST switch for

function referring to “Cruise Control Switch
Inspection in related manual”.

Wiring or grounding faulty

Repair.

ECM faulty

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

10A-6 Cruise Control System:

Cruise control cannot be
cancelled

CANCEL switch faulty

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

Stop (brake) lamp switch faulty

Check stop (brake) lamp switch for function
referring to “Stop (Brake) Lamp Switch
Inspection in related manual”.

CPP switch faulty

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

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 in related
manual”.

Wiring or grounding faulty

Repair.

ECM faulty

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

Condition

Possible cause

Correction / Reference Item

Body Electrical Control System: 10B-1

Control Systems

Body Electrical Control System

Precautions

Precautions in Diagnosing Trouble

S5JB0EA200001

• Diagnostic information stored in BCM memory can be cleared as well as checked by using SUZUKI scan tool.

Before using scan tool, read its Operator’s (Instruction) Manual carefully to have good understanding as to what
functions are available and how to use it.

• Be sure to read “Precautions for Electrical Circuit Service in Section 00 in related manual” before inspection and

observe what is written there.

• Communication of ECM, TCM (if equipped), BCM, ABS or ESP

® control module (if equipped), 4WD control module

(if equipped), keyless start control module (if equipped), steering angle sensor (if equipped) and combination meter
is established by CAN (Controller Area Network).
Therefore, be sure to read “Precaution for CAN Communication System in Section 00 in related manual” before
inspection and handle CAN communication line.

General Description

BCM General Description

S5JB0EA201001

The BCM incorporates relays and controllers which are used for the following systems and controls them.
• Power door lock (if equipped)
• Keyless entry (if equipped)
• Door lock function of keyless start system (if equipped)
• Rear wiper
• Combination meter
• Interior light / luggage room light
• Warning buzzer
• Rear end door window defogger and door mirror heater (if equipped)
• DRL (if equipped)
• Auto-on headlight (if equipped)
• Front fog light (if equipped)
• Theft deterrent light
Also, the BCM has a function to cause the interior light and open door warning lamp in the combination meter to turn
off when any door is left open for longer than 15 minutes to reduce wasteful battery consumption.
In addition, it is possible to check operation of actuator which is controlled by BCM by using the output test function of
SUZUKI scan tool to operate actuator simulatively.