Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 554
10E-20 Keyless Start System:
Reference waveform No. 6
Driver and passenger side door lock switch signals.
(This signal indicates door lock status.)
In case the position of driver and passenger side door
lock is changed from the unlock to the lock.
In case the position of passenger side door lock is
changed from the lock to the unlock when the position of
driver and passenger side door is at the lock
Measurement
terminal
Driver side door lock switch
• CH1: “G44-33” to “G44-9”
Passenger side door lock switch
• CH2: “G44-37” to “G44-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 1 s/DIV
Measurement
condition
Press lock side of manual door
lock switch
1. Unlock signal
2. Lock signal
I5JB0AA50027-02
Measurement
terminal
Driver side door lock switch
• CH1: “G44-33” to “G44-9”
Passenger side door lock switch
• CH2: “G44-37” to “G44-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
condition
Driver door is at lock position and
passenger side door is at unlock
position
1. Lock signal
2. Unlock signal
I5JB0AA50028-02
Keyless Start System: 10E-21
In case the position of driver side door lock is changed
from the lock to the unlock when the position of driver
and passenger side door is at the lock.
In case the position of driver and passenger side door
lock is changed from the lock to the unlock.
No DTC Detection After Performing DTC Check
S6JB0AA504014
Wiring Diagram
Measurement
terminal
Driver side door lock switch
• CH1: “G44-33” to “G44-9”
Passenger side door lock switch
• CH2: “G44-37” to “G44-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
condition
Driver door is at unlock position
and passenger side door is at
lock position
1. Lock signal
2. Unlock signal
I5JB0AA50029-02
Measurement
terminal
Driver side door lock switch
• CH1: “G44-33” to “G44-9”
Passenger side door lock switch
• CH2: “G44-37” to “G44-9”
Oscilloscope setting CH1: 2 V/DIV CH2: 2 V/DIV
TIME: 400 ms/DIV
Measurement
condition
Driver door is at unlock position
and passenger side door is at
lock position
1. Lock signal
2. Unlock signal
I5JB0AA50030-03
BLK
G44-9
G44-15
G44-14
G44-16
G44-20
G44-29
G44-30
G44-10
G44-34
G44-11
WHT/BLK
WHT
WHT
RED/BLK
YEL
5V
5V
5V
5V
5V
12V
12V
WHT
RED
WHT
RED
G44-18
G44-19
BLU/RED
BRN/RED
BLK/YEL
BRN/YEL
ORN
G22-3
G22-4
G22-5
G22-2
G22-1
G22-6
G22-7
G22-8
WHT
WHT
G44
[A]
[B]
1
2
3
4
5
6
7
8
9
10
11
14
15
16
36
34 33 32
30 29
24 23
37
18
19
20
WHT
G28-8
G28-10
G28-14
7
10
1
2
4
9
5
3
6
8
I6JB01A50005-01
[A]: Keyless start control module connector (viewed from harness side)
3. Steering lock solenoid
7. Combination meter
[B]: To each control module
4. Ignition knob switch
8. Key indicator light
10E-22 Keyless Start System:
Description
The keyless start control module detects DTC by using signals from the key reminder and driver side door request
switches. The keyless start control module makes the key indicator light in the combination meter flash on and off by
using CAN communication.
Troubleshooting
1. Keyless start control module
5. Key reminder switch
9. Junction box
2. Steering lock unit
6. Driver side door request switch
10. Junction connector
Step
Action
Yes
No
1
Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning light in combination meter other than key
indicator light light up?
Go to Step 2.
Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2
Driver side door request switch and its circuit check
1) Check driver side door request switch and its circuit
Is it in good condition?
Go to Step 3.
Repair or replace
malfunction part.
3
Key reminder switch and its circuit check
1) Turn ignition switch to OFF position.
2) Disconnect connector from ignition switch.
3) Check key reminder switch for operation referring to
“Ignition Switch Inspection in Section 9C”.
4) If OK, check for open, short and high resistance in key
reminder switch circuit.
Is it in good condition?
Go to Step 4.
Repair or replace
malfunction part.
4
Keyless start control module power supply and ground
circuit
1) Check keyless start control module power and ground
circuit for condition referring to “Keyless Start Control
Module Power and Ground Circuit Check”.
Is it in good condition?
Go to Step 5.
Repair circuit.
5
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?
Substitute a known-
good keyless start
control module and
recheck.
Repair circuit.
Keyless Start System: 10E-23
Key Indicator Light Circuit Check (Key Indicator Light Doesn’t Light when Ignition Knob Switch is
Pushed)
S6JB0AA504015
Wiring Diagram
Description
When the ignition knob switch is pushed, the key indicator light lights up in blue if you carry the remote controller
registered in the keyless start control module and it lights in red if you carry the remote controller which has not been
registered in the keyless start control module or if you carry no remote controller.
Troubleshooting
BLK G44-9
G44-15
G44-14
G44-20
G44-29
G44-30
G44-10
G44-34
G44-11
WHT/BLK
WHT
WHT
YEL
5V
5V
5V
5V
5V
12V
WHT
RED
WHT
RED
G44-18
G44-19
BLU/RED
BRN/RED
BLK/YEL
BRN/YEL
ORN
G22-3
G22-4
G22-5
G22-2
G22-1
G22-6
G22-7
G22-8
WHT
WHT
G44
[A]
1
2
3
4
5
6
7
8
9
10
11
14
15
16
36
34 33 32
30 29
24 23
37
18
19
20
WHT
G28-8
G28-10
G28-14
8
1
2
3
5
7
6
4
9
I7JB01A50002-01
[A]: Keyless start control module connector (viewed from harness side)
4. Steering lock unit
8. Junction block
1. Keyless start control module
5. Steering lock solenoid
9. Ignition knob switch signal circuit
2. Combination meter
6. Key reminder switch
3. Key indicator light
7. Ignition knob switch
Step
Action
Yes
No
1
Combination meter power and ground circuit check
1) Turn ignition switch to ON position.
Do warning light in combination meter other than key
indicator light light up?
Go to Step 2.
Check main fuse, circuit
fuse, combination meter
power and ground
circuit.
2
Keyless start control module power and ground circuit
check
1) Check keyless start control module power and ground
circuit for condition referring to “Keyless Start Control
Module Power and Ground Circuit Check”.
Is it in good condition?
Go to Step 3.
Repair circuit.
3
Steering lock unit ignition knob switch check
1) Check ignition knob switch of steering lock unit for
operation referring to “Steering Lock Unit Inspection”.
Is it in good condition?
Go to Step 4.
Replace steering lock
unit.
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