Appellation
| Description
|
AAF
| Active Air Flap
|
ACU
| Airbag Control Unit
|
ADM
| Assist Door Module
|
AHD
| Active Hood System
|
AMP
| Amplifier
|
ARS
| Armrest Switch
|
ASCC
| Advanced Smart Cruise Control
|
AVM
| Around View Monitor
|
AWD
| All Wheel Drive
|
B_CAN
| Body Controller Area Network
|
BCM
| Body Control Module
|
BSD
| Blind Spot Detection
|
C_CAN
| Chassis Controller Area Network
|
CCP
| Center Control Panel
|
CLUM
| Cluster Module
|
DATC
| Dual Automatic Temp Control
|
DDM
| Driver Door Module
|
Display
| Display Monitor
|
DSS
| Driver Seat Switch
|
ECS
| Electronic Control Suspention
|
EMS
| Engine Management System
|
EPB
| Electronic Parking Brake
|
EVP
| Eva Vacuum Pump
|
FPCM
| Fuel Pump Control Module
|
H/Unit
| Head Unit
|
HSWS
| Haptic Steering Warning System
|
HUD
| Head Up Display
|
I-BOX
| Telematics System
|
IDB
| Integrated Dynamic Brake
|
LDWS
| Lane Departure Warning System
|
M_CAN
| Multi media Controller Area Network
|
MDPS
| Motor Driven Power Steering
|
MFS
| Multi-Function Switch
|
ODS
| Occupant Detection System
|
P_CAN
| Powertrain Controller Area Network
|
PGS
| Parking Guide System
|
PSB
| Pre-Safe Seat Belt
|
PSM
| Power Seat Module
|
PTLM
| Power Trunk Lid Module
|
RRC
| Rear Remote Control
|
SAS
| Steering Angle Sensor
|
SCM
| Steering Column Module
|
SJB
| Smart Junction Box
|
SLB
| Seat Lumber Bolster
|
SMK
| Smart Key Unit
|
SPAS
| Smart Parking Assist System
|
SWRC
| Steering Wheel Remote Controller
|
TCU
| Transmission Control Unit
|
TPMS
| Tire Pressure Monitoring System
|
VDC
| Vehicle Dynamic Control
|
IGPM (Central Gateway and smart junction block)
IGPM (Integrated Gateway Power Control Module) is an integrated model of smart junction block and central gateway.
It performs the function of conventional "Smart junction block" and the function of communication medium of "Central Gateway".
Central Gateway(CGW)
CGW is a controller enabling communication among the controllers connected to the different networks.
There are five CAN networks connected to CGW.
B-CAN and M-CAN are connected to the low-speed CAN, C-CAN and
P-CAN to the high-speed CAN while D-CAN is connected for inspection.
| 1. |
CGW Main Features
| (1) |
Routing : Information exchange among different in-vehicle communication networks. 
|
| (2) |
Network security control : It only allows inspection
communication (D-CAN) to connect in-vehicle communication network in
order to prevent 
|
| (3) |
Additional functions
| A. |
If alarm light is ON, carry out remote diagnosis of Chassis system (C-CAN) through I-Box and gateway
|
I-Box remote diagnosis (C-CAN) function via gateway shall be suspended. |
|
| B. |
Dark current measurement: After sending forced electronic
parts sleep message to each network from the diagnosis equipment,
gateway also enters sleep mode. |
| C. |
Operation current check: Check problem through operation of electronic parts |
|
| (4) |
Fault diagnosis on CAN signal transmission failure by communication control defect
(CGW records DTC for the controller with transmission failure.) |
|
| 2. |
How to check CGW
| (1) |
Although "No CGW CAN signal (TIMEOUT)" record appears when
checking the DTC of the faulty electronic component, never determine it
as the CGW failure. CGW is a controller that intermediates in-vehicle
transmitting/receiving controllers. If one of the following two cases
arises: (1) the transmitting controller fails to send a message to CGW,
leading to CGW failing to send it to the receiving controller; (2) CGW
sends the pre-determined value (Timeout Value), the corresponding
receiver records the DTC of the failure of message transmission. Thus,
to finally determine the controller that fails to send CAN signal, the
DTC of CGW shall be checked. CGW records DTC only when it fails to
receive the signal for more than 10 seconds with KEY ON. To identify the
cause of no CAN signal transmission, the CGW DTC shall be checked after
waiting for more than 20 seconds with KEY ON. |
| (2) |
If the CAN communication control unit is not reinstalled
after being removed from the vehicle, CGW records the DTC of ‘No CAN
signal’ for the unit.
|
For example, the failure code of 'DDM CAN signal is not out' is created when the removed DDM is not reinstalled. |
If a DTC remains after replacing electronic components and
the failure code is not erased, check whether the connector of the
electronic component is properly connected, and whether the controller's
CAN wiring operates normally. In case that the removed electronic
component cannot be reinstalled, "Erase Expected Network Config" service
shall be performed. Refer to the DTC inspection guide for each failure
code for the service execution method.
Otherwise, the DTC of "No CAN Signal" on the corresponding controller may not be deleted.
|
Perform the "Additional function" > "Network setting initialization" in examining device (GDS) by referring to DTC guide. |
|
| (3) |
IGN2 of SJB is ON when MCU is out of order (State of
non-operation due to the external physical or electrical shock). The
safety of the driver is secured by forcible lighting on the head lamp
low, external and internal tail lamps when the headlamp low switch is
ON. |
| (4) |
IGN2 is ON when the data transmitting/receiving is impossible
by the failure on the CAN communication line (Both of high/low cables
are shorted, BAT short in high/low, GND short in high/low) in case of
failure on CAN communication line connected to SJB module. When the
headlamp low switch is ON, the headlamp low and internal/external tail
lamps are lighted forcibly. |
|
Smart Junction Block(SJB)
Smart Junction Block (SJB) is a module that performs the function of conventional Junction Box and some functions of BCM.
It controls various components including lamps by using CAN
communication and IPS (replacing the function of fuse and relay) or
ARISU.
IPS stands for Intelligent Power Switch, which uses the semiconductor technology to replace the current role of fuse and relay.
The IPS chip has two functions :
1) the high current-based component control
2) component protection from overcurrent.
|
The advantages of IPS are as follows:
| - |
Reduce relay and consequently decrease weight and volume |
| - |
Remove the relay operation noise |
| - |
No need to replace fuses and increase the product life |
| - |
Capable to diagnose faulty parts |
|
SJB control entry
| 1. |
Switch signal input
| (1) |
Assist seat belt switch
Assist seat belt reminder switch
Assist the door switch
Driver's seat belt switch
Driver's seat belt switch
Rear left seats door switch
Rear right seats door switch
Rear Safety seat belt switch Left
Rear Safety seat belt switch Right
Rear Center seat safety belt switch
IGN1 switch
IGN2 switch
Brake fluid sensor
Trunk open switch
Trunk lid handle switch
HID head lamp option
ADV HID head lamp option
Emergency switch
Headlight low beams switch
Hood switch
Dark disconnect switch
Left front / rear turn signal switch
Right front / rear turn signal switch |
| (2) |
IPS&ARISU
Left Headlight low beams
Right Headlight low beams
Right Headlight high beams
Right Headlight high beams
Front left / right fog lamp
Room Taillight
Outdoor Left taillight
Outdoor Light taillight
Left front / rear turn signals
Right front / rear turn signals
Static bending left lamps
Static bending right lamp
DRL Left lamp
DRL right lamp
Trunk room lamp
Body resistance Cut control
Front left turn signal output
Front right turn signal output |
| (3) |
Relay Control
Rear glass heat rays relay
Anti-theft alarm horn relay
Trunk lid relay
Room lamp relay
Front glass heat rays relay
Rear fog lamp relay
Headlight high beams relay |
|
| 2. |
SJB protection
| (1) |
PCL (Programmable Current Limit) functions
| A. |
PCL replaces the junction box function of protecting wires. |
| B. |
How to operate: If the lamp current exceeds the standard level, cut off the current to protect the lamp. |
| C. |
Lamp cut off time: 300ms or less. |
| D. |
Applied components: all lamp components controlled by SJB |
| E. |
Output the error code according to the error detection conditions. |
|
| (2) |
OCL (Open Current Limit)
| A. |
OCL detects the lamp open state and informs the user of it. |
| B. |
How to operate : Detect the current of the lamp and if it is below the standard level, change the lamp operation. |
| C. |
Applied components: 4 turn signal lamps |
| D. |
Output the error code according to the error detection conditions. |
|
|
| 3. |
SJB fail safe function
| (1) |
When the MCU is out of order (not operating due to a physical
or electrical shock from the outside), and IGN2 and head lamp low
switch are on, SJB forces the head lamp low and exterior/interior lamps
to turn on in order to secure the driver’s safety. |
| (2) |
When the data transmission/reception fails due to a failed
CAN communication line connected with SJB module (disconnection of both
high and low line, high/low BAT short, high/low GND short), the head
lamp low and interior/exterior tail lamps are forced to turn on if IGN2
is on and the head lamp low switch is on. |
|
| 4. |
Auto Cut System of Dark Current
| (1) |
Description : It cuts automatically power to be provided with
components for reducing useless dark current according to vehicle
state. 
|
| (2) |
SJB had 3 modes, "Normal Mode", "Sleep Mode", "Power Off Mode". Auto cut of dark current practice in "Sleep Mode".
| A. |
"Sleep" condition : IG OFF, constant input switch, CAN network doesn't activate. |
| B. |
"Sleep" resolutive condition : Any switch inputs, CAN network activates, KEY ON, IGN ON |
| C. |
"Power OFF" condition : The setting time of timer which is used by cutting a load power expires. |
| D. |
"Normal Mode" : SJB function normally activates. |
| E. |
"Sleep Mode" : It is low power mode and activates for
reducing electricity consumption of SJB or IPM. Auto cut of dark current
function activates. |
| F. |
"Power OFF Mode" : Power of MCU and circumferential circuit is cut for minimizing electricity consumption. Operation stops. |
|
| (3) |
The explanation - The auto cut of dark current 
Before delivering to customer
| Fuse switch OFF
|
| • |
All door close & RKE door lock or Constant switch state
(Auto cut of dark current scenario starts.) |
| - |
After "sleep" state is for 20 min. |
| - |
SJB power down(SJB dark current : 200 ?A) and cutting power of Lamp
/Body Load/Wake up |
| 
|
After delivering to customer
| Fuse switch ON
|
| • |
All door close & Constant switch state : C_BAState=OFF
(Auto cut of dark current scenario starts.) |
| - |
After "sleep" state is for 20 min. |
| - |
SJB power down(SJB dark current : 200 ?A) and cutting power of Lamp Load |
| • |
In case RKE door lock : C_BAState=ON & Trunk SW=CLOSE
(Auto cut of dark current scenario starts.) |
| - |
After "Sleep" state 35s~65s (Waiting time of other unit : 30~60s + SJB
sleep counts 5s) |
| - |
SJB Powerdown(SJB dark current : 200 ?A) and cutting power of
Lamp Load |
| 
|
|
| (4) |
Problem when fuse switch setting is wrong
: If a fuse switch is set to OFF(Before delivering to
customer) by a customer or technician and auto cut function of dark
current activates, the following problems may occur
Symptom
| Related part
|
| • |
Door lock/unlock, trunk open don't activate by RKE.
(Wakeup of each module don't activate.) |
| BCM
|
| • |
Digital clock is reset.(Memory is reset.) |
| Digital clock
|
| • |
Audio setting values (volume, frequency setting) are reset.
(Memory is reset.) |
| Audio
|
* If fuse switch OFF(before delivering to customer) is set, power of BCM, Digital clock and audio is shut off. |
|
Relay Box (Passenger Compartment) Components and Components Location
Relay Box (Passenger Compartment) Repair procedures