Hyundai Genesis: Fuses And Relays / Relay Box (Passenger Compartment) Description and Operation

Description

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

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.

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

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

Component Location Interior Junction Block ...

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Fuse Inspection 1. Check that the fuse holders are loosely held and that the fuses are securely fixed by the holders. 2. Check that each fuse circuit has the exact fuse capacity. 3. Check ...

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