Suzuki Grand Vitara JB416 / JB420. Manual — part 416
10B-30 Body Electrical Control System:
BCM connector “G31”
G30-7
Rear wiper INT switch
0 – 1 V
↑↓
10 – 14 V
Refer to “Reference waveform No. 3: ”
0 V
Ignition switch is at ON position and rear wiper
switch is at INT position
G30-8
—
—
—
G30-9
Front fog light switch
10 – 14 V
Lighting switch is at CLEARANCE position and
front fog light switch is at ON position
0 V
Lighting switch is at CLEARANCE position and
front fog light switch is at OFF position
G30-10 Lighting switch (HEAD)
10 – 14 V
Lighting switch is at any position other than HEAD
position
0 V
Lighting switch is at HEAD position
G30-11 Lighting switch (CLEARANCE)
10 – 14 V
Lighting switch is at OFF position
0 V
Lighting switch is at any position other than OFF
position
G30-12
Ground for body electrical
controller
0 V
Ignition switch is at each position
G30-13
—
—
—
G30-14
—
—
—
G30-15
—
—
—
G30-16 Theft deterrent light
10 – 14 V
Theft deterrent light is not lit up
0 V
Theft deterrent light is lit up
G30-17
—
—
—
G30-18
—
—
—
G30-19 Serial communication line of SDM
*0 – 1 V
↑↓
4 – 6 V
Refer to “Reference waveform No. 4: ”
G30-20
—
—
—
G30-21 Lighting switch (AUTO)
10 – 14 V
Lighting switch is at other than AUTO position
0 V
Lighting switch is at AUTO position
G30-22 Vehicle speed signal output
*0 – 1 V
↑↓
10 – 14 V
Refer to “Reference waveform No. 5: ”
G30-23
—
—
—
G30-24
—
—
—
Terminal
Circuit
Normal voltage
Condition
Terminal
Circuit
Normal voltage
Condition
G31-1
CAN communication line (high) for
DLC
*2.5 – 3.6 V
Refer to “Reference waveform No. 6: ”
G31-2
CAN communication line (high) for
each control module
*2.5 – 3.6 V
G31-3
CAN communication line (low) for
DLC
*1.6 – 2.5 V
G31-4
CAN communication line (low) for
each control module
*1.6 – 2.5 V
G31-5
—
—
—
G31-6
—
—
—
G31-7
Brake fluid level switch
*5 – 12 V
Refer to “Reference waveform No. 7: ”
0 V
Ignition switch is at ON position and brake fluid
level is lower than MIN level
G31-8
Parking brake switch
*5 – 12 V
Refer to “Reference waveform No. 7: ”
0 V
Ignition switch is at ON position and parking brake
lever is pulled up
G31-9
Oil pressure switch
*6 – 14 V
Refer to “Reference waveform No. 8: ”
0 V
Ignition switch is at ON position and engine is at
stop
Body Electrical Control System: 10B-31
G31-10 Generator “L” terminal
10 – 14 V
Engine is running
0 V
Ignition switch is at ON position
G31-11
—
—
—
G31-12 Tail light relay control
10 – 14 V
Lighting switch is at OFF position
0 V
Lighting switch is at any position other than OFF
position
G31-13 Rear wiper control
10 – 14 V
Ignition switch is at ON position and rear wiper is
not in operation
0 V
Ignition switch is at ON position and rear wiper is in
operation
G31-14
Rear end door window defogger
control
10 – 14 V
Engine is running and rear end door window
defogger is not in operation
0 V
Engine is running and rear end door window
defogger is in operation
G31-15 Horn control
10 – 14 V
Horn is not in operation
0 V
Horn is in operation
G31-16 DRL control
10 – 14 V
Engine is running and lighting switch is at
CLEARANCE or OFF position
0 V
Engine is running and lighting switch is at HEAD
position
G31-17 Front fog light control
10 – 14 V
Lighting switch is at CLEARANCE position and
front fog light switch is at OFF position
0 V
Lighting switch is at CLEARANCE position and
front fog light switch is at ON position
G31-18 Power supply for keyless receiver
4 – 6 V
Ignition switch is at ON position
G31-19 Signal for keyless receiver
*0 – 1 V
↑↓
10 – 14 V
Refer to “Reference waveform No. 9: ”
G31-20 Ground for keyless receiver
0 V
Ignition switch is at each position
G31-21
Sensor ground for outside air
temperature sensor
0 V
Ignition switch is at each position
G31-22
Sensor ground for auto light
sensor
0 V
Ignition switch is at each position
G31-23 Auto-on headlight sensor
0.2 V
Ignition switch is at ON position and cover auto-on
headlight sensor lens by hand
3 – 4 V
Ignition switch is at ON position and light auto-on
headlight sensor lens by 100 W lights
G31-24 Outside air temperature sensor
About 1.5 V
Ignition switch is at ON position and outside air
temperature approx. 20
°C (68 °F)
G31-25 Power supply for auto light sensor
4 – 6 V
Ignition switch is at ON position
G31-26 Manual door lock switch (Unlock)
4 – 6 V
Manual door lock switch is at any position other
than unlock position
0 V
Manual door lock switch is at unlock position
G31-27 Manual door lock switch (Lock)
4 – 6 V
Manual door lock switch is at any position other
than lock position
0 V
Manual door lock switch is at lock position.
G31-28 Power/Normal mode switch
4 – 6 V
Ignition switch is at ON position and Power/Normal
mode switch is at ON position
0 V
Ignition switch is at ON position and Power/Normal
mode switch is at OFF position
G31-29
—
—
—
G31-30
—
—
—
G31-31
—
—
—
G31-32
—
—
—
G31-33
—
—
—
G31-34
Turn signal / hazard warning relay
control
0 V
Hazard warning switch is at ON position
10 – 14 V
Hazard warning switch is at OFF position
G31-35
Serial communication line of data
link connector
10 – 14 V
Ignition switch is at ON position
Terminal
Circuit
Normal voltage
Condition
10B-32 Body Electrical Control System:
BCM connector “G32”
G31-36
Driver side door key cylinder
switch (Unlock)
10 – 14 V
Driver side key cylinder switch is at any position
other than unlock position
0 V
Driver side key cylinder switch is at unlock position
G31-37
Driver side door key cylinder
switch (lock)
10 – 14 V
Driver side key cylinder switch is at any position
other than lock position
0 V
Driver side key cylinder switch is at lock position
G31-38
Door switch (rear end door and
other than driver side door)
10 – 14 V
Rear right and left side door, passenger side door,
rear end door and rear end door are closed
0 V
Any one of the door is opened (except driver side
door)
G31-39 Driver side door switch
10 – 14 V
Driver side door is closed
0 V
Driver side door is opened
G31-40 Driver seat belt switch
*5 – 12 V
Refer to “Reference waveform No. 7: ”
0 V
Ignition switch is at ON position and driver seat
belt is unfastened
Terminal
Circuit
Normal voltage
Condition
Terminal
Circuit
Normal voltage
Condition
G32-1
Ground for door lock motor
0 V
Ignition switch is at each position
G32-2
Rear door lock actuator motor
control (Unlock)
10 – 14 V
Unlock signal is output for rear door lock actuators
0 V
Unlock signal is not output for rear door lock
actuators
G32-3
Door lock actuator motor control
(Lock)
10 – 14 V
Lock signal is output for all door lock actuators
0 V
Lock signal is not output for all door lock actuators
G32-4
—
—
—
G32-5
Power supply for door lock
actuator motor
10 – 14 V
Ignition switch is at each position
G32-6
—
—
—
G32-7
Rear end door lock actuator motor
control (Unlock)
10 – 14 V
Unlock signal is output for rear end door lock
actuator
0 V
Unlock signal is not output for rear end door lock
actuator
G32-8
Driver side door lock actuator
motor control (Unlock)
10 – 14 V
Unlock signal is output for driver side door lock
actuator
0 V
Unlock signal is not output for driver side door lock
actuator
G32-9
Passenger side door lock actuator
motor control (Unlock)
10 – 14 V
Unlock signal is output for passenger side door
lock actuator
0 V
Unlock signal is not output for passenger side door
lock actuator
G32-10
Door lock actuator motor control
(Dead lock cancel)
10 – 14 V
Driver side key cylinder is turned to unlock position
0 V
Driver side key cylinder is at any position other
than unlock position
G32-11
Door lock actuator motor control
(Dead lock set)
10 – 14 V
Driver side key cylinder is turned to lock twice
within 3 seconds
0 V
Driver side key cylinder is at any position other
than lock position
G32-12
Headlight high beam monitor
signal
10 – 14 V
Lighting switch is at HEAD position and dimmer
switch is at low beam position
0 V
Lighting switch is at HEAD position and dimmer
switch is at high beam position
G32-13 Power supply for interior light
10 – 14 V
Ignition switch is at each position
G32-14
—
—
—
G32-15 Interior light control
10 – 14 V
Interior light switch is at DOOR position and
interior light is not lit up
0 V
Interior light switch is at DOOR position and
interior light is lit up
Body Electrical Control System: 10B-33
Reference waveform No. 1
HVAC control module serial communication signal (1)
Reference waveform No. 2
HVAC control module and information display serial
communication signal (1)
Reference waveform No. 3
Rear wiper LOW or INT signal (1)
Reference waveform No. 4
SDM communication signal (1)
Measurement terminal CH1: “G30-4” to “G30-12”
Oscilloscope setting
CH1: 5 V / DIV
TIME: 2 ms / DIV
Measurement
condition
Ignition switch is at ON position
Measurement terminal CH2: “G30-5” to “G30-12”
Oscilloscope setting
CH1: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition
Ignition switch is at ON position
I5JB0AA20013-01
I5JB0AA20014-01
Measurement terminal Rear wiper LOW signal:
CH1: “G30-6” to “G30-12”
Rear wiper INT signal:
CH1: “G30-7” to “G30-12”
Oscilloscope setting
CH2: 5 V/DIV
TIME: 10 ms/DIV
Measurement
condition
Rear wiper LOW signal:
• Ignition switch is at ON
position, rear wiper switch is
at any position other than
LOW position
Rear wiper INT signal:
• Ignition switch is at ON
position, rear wiper switch is
at any position other than
INT position
Measurement terminal CH1: “G30-19” to “G30-12”
Oscilloscope setting
CH1: 2 V/DIV
TIME: 400 ms/ DIV
Measurement
condition
Ignition switch is at ON position
I5JB0AA20015-01
I5JB0AA20016-01
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