Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 523
10A-2 Cruise Control System:
Components and Functions of Cruise Control System
S6JB0AA101002
Component
Function
ECM and electric throttle body
(petrol engine model) or fuel
injector (diesel engine model)
ECM executes centralized control over all functions including setting a constant speed,
resuming it, setting coast, cancelling cruise control limiting minimum speed.
ECM controls electric throttle valve opening (petrol engine model) or fuel injector
(diesel engine model) to keep actual vehicle speed at set (target) speed.
MAIN (ON/OFF) switch
This switch has a momentary contact type button to press cruise control
system ON and OFF.
SET/COAST switch
When this switch is pressed (ON) and then released (OFF) while vehicle is running at
a speed 40 km/h (25 mile/h) or higher, vehicle speed at that OFF moment is stored in
memory and it is maintained (constant cruising).
Pressing this switch (ON) continuously during constant cruising keeps slowing down
vehicle speed as long as it is ON. When it is released (OFF), vehicle speed at that
moment is stored in memory and vehicle starts constant cruising.
RES/ACC switch
When this switch is pressed (ON) during constant cruising, vehicle speed keeps
increasing as long as it is ON. When it is released (OFF), vehicle speed at that
moment is stored in memory and vehicle starts constant cruising. If vehicle speed is
higher than 40 km/h (25 mile/h) after cruise control is cancelled, pressing this switch
ON momentarily will resume the speed at which vehicle was running before
cancellation.
CANCEL switch
When this switch is pressed (ON), cruise control is cancelled.
Wheel speed sensor (vehicle
speed signal)
ECM receives speed sensor signal from ABS or ESP
® control module through CAN
communication and calculates vehicle speed using that signal.
Brake light switch
Brake light switch has 2 contact points. One contact point closes when brake pedal is
depressed to light brake light and provides a voltage signal to the ECM.
The other contact point (brake pedal position switch) opens when brake pedal is
depressed, to shut off power to cruise control of ECM, thereby cancelling cruise
control.
This switch is installed to cancel cruise control (constant cruising).
Clutch pedal position switch
(M/T model)
When clutch pedal is depressed, clutch pedal position switch closes and provides a
ground signal to ECM.
ECM cancels cruise control when this signal is inputted.
Transmission range switch (A/
T model)
When selector lever is placed in either “P”, “R” or “N” position, transmission range
switch closes and provides a ground signal to TCM. TCM transmits signal from
transmission range switch to ECM through CAN communication. When ECM receives
a signal indicating that selector lever position is “P”, “R” or “N”, it cancels cruise
control.
TCM
TCM receives the SET signal for the cruise control from ECM through CAN
communication. When TCM receives the SET signal from ECM, the gear shift control
is performed by using the gear shift map for the cruise control changed from the one
for normal gear shift. For details, refer to “Automatic Gear Shift Table in Section 5A”.
“CRUISE” indicator light
In the state with ignition switch ON and cruise control system OFF, pressing MAIN
(ON/OFF) switch once and releasing it will activate the cruise control system and ECM
will cause indicator light to light up.
“SET” indicator light
It lights up when cruise control is functioning.
Cruise Control System: 10A-3
Cancel Conditions of Cruise Control System
S6JB0AA101003
Constant cruising is cancelled under the following conditions.
• *Ignition switch is turned OFF.
• MAIN (ON/OFF) switch is turned OFF.
• Vehicle speed becomes lower than minimum operating speed (40 km/h (25 mile/h)).
• *Vehicle speed varies beyond cancel speed range (–10 km/h (–6 mile/h)) from preset speed.
• *Brake pedal is depressed. (Brake light switch is turned ON).
• *Clutch pedal is depressed (Clutch pedal position switch is turned ON) (M/T model).
• *Selector lever is shifted to “P”, “R” or “N” range (A/T model).
• *CANCEL switch is turned ON.
• *ESP
® is operating (if equipped).
NOTE
When constant cruising is cancelled under any condition with * (asterisk), vehicle speed before
cancellation can be resumed by operating RES/ACC switch, provided that vehicle speed is higher than
40 km/h (25 mile/h).
Schematic and Routing Diagram
Cruise Control System Input / Output Diagram
S6JB0AA102002
Input
Output
MAIN (ON/OFF) switch
Cruise control switch
RES/ACC switch
SET/COAST switch
CANCEL switch
CPP switch
(M/T model)
Brake light switch
Wheel speed sensor
ABS or ESP
control module
(vehicle speed signal)
ECM
Electric throttle body
(throttle v
(petrol engine model)
(diesel engine model)
alve control)
Combination meter
(indicator light control)
TCM (Shift control)
(A/T model)
(A/T model)
Transmission range switch
( or range signal)
“P”, “R”
“N”
Fuel injector
I6JB0AA10002-02
10A-4 Cruise Control System:
Cruise Control System Wiring Diagram
S6JB0AA102001
Petrol Engine Model
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
16
1
3
4
5
6
7
8
10
9
14
12
11
18
19
15
17
WHT/BLU
WHT/RED
WHT/BLU
WHT/RED
E23-4
E23-19
WHT
RED
WHT
RED
I6JB0AA10003-01
[A]: ECM connector (viewed from harness side)
7. CANCEL switch
14. Ignition switch
1. ECM
8. Brake light switch
15. ABS or ESP
® control module
2. Accelerator pedal position sensor
9. CPP switch
16. Combination meter
3. Cruise control switch
10. Brake light
17. Other control modules
4. MAIN (ON/OFF) switch
11. Electric throttle valve relay
18. “CRUISE” indicator light
5. RES/ACC switch
12. Electric throttle body
19. “SET” indicator light
6. SET/COAST switch
13. Main relay
Cruise Control System: 10A-5
Diesel Engine Model
IG1
+BB
E66-4
WHT
ORN
E66-17
E66-23
C86-3
C86-14
E66-11
E66-2
E66-3
E66-5
E66-15
E66-21
E66-27
WHT/BLU
BLK/WHT
LT GRN
BLK/YEL
BLU/BLK
BLU/BLK
BLK/WHT
BLU/YEL
BLU/BLK
BLU/GRN
BLU/YEL
ORN/BLU
2
1
3
4
5
6
7
12
13
[A]
E66-20
E66-8
E66-7
E66-1
BLK
BLK
BLK
33
34
39
40
41
42
43
44
35
36
37
38
45
46
47
48
9
10
11
12
13
14
1
3
5
7
2
4
6
8
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
3
7
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
2
4
6
8
9
10
11
12
13
14
5
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
27
28
29
30
31
32
C85
C86
E66
BLU
BLK
9
E66-30
E66-28
YEL/GRN
BLU/BLK
GRN/WHT
GRN
8
10
C85-8
11
11
11
11
C85-32
PNK
C85-27
RED
C85-29
PNK/BLK
C85-25
RED/BLK
C85-30
PNK/GRN
C85-26
RED/GRN
C85-31
PNK/BLU
C85-28
RED/BLU
15
17
18
14
16
WHT/BLU
WHT/RED
WHT
RED
WHT
RED
WHT/BLU
WHT/RED E66-32
E66-26
I6JB0AA10004-01
[A]: ECM connector (viewed from harness side)
7. CANCEL switch
14. ABS or ESP
® control module
1. ECM
8. Brake light switch
15. Combination meter
2. Accelerator pedal position sensor
9. CPP switch
16. Other control modules
3. Cruise control switch
10. Brake light
17. “CRUISE” indicator light
4. MAIN (ON/OFF) switch
11. Fuel injector
18. “SET” indicator light
5. RES/ACC switch
12. Main relay
6. SET/COAST switch
13. Ignition switch
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