Hyundai i-30: Fuses And Relays / Relay Box (Passenger Compartment)

Hyundai i30 (PD) 2018-2024 Service Manual / Body Electrical System / Fuses And Relays / Relay Box (Passenger Compartment)

Components and components location
Component Location
[Interior Junction Block]
IGPM(Integrated Gateway & Power Control Module)

Circuit (IGPM)

Description and operation
Description
Communication Network Diagram

Abbreviation
Expalnation
ECM
Engine Control Module
TCU
Transmission Control Unit
MDPS
Motor Driven Power Steering
AEB
Autonomous Emergency Braking
LKAS
Lane Keeping Assist System
FPS
Fuel Pump Control module
RR CAMERA
Rear View Carmera
VACUUM
Vacuum Pump
CLUSTER
Cluster Module
ACU
Airbag Control Unit
DATC
Dual Automatic Temp Control
MTC
Temp Control
OCS
Occupant Classification System
VDC
Vehicle Dynamic Control
BSD
Blind Spot Detection
AMP
Amplifier
AVN
Head Unit (Audio / AVN)
SMK
Smart Key Unit
WPC
Wireless Power Charger
IMS
Integrated Memory System
DDM
Driver Door Module
ADM
Assist Door Module
BCM
Body Control Module
B-CAN
Body Controller Area Network
P-CAN
Powertrain Controller Area Network
M-CAN
Multi media Controller Area Network
C-CAN
Chassis Controller Area Network

Integrated Gateway & Power control Module (IGPM)
Integrated Gateway & Power control Module (IGPM) is a module that performs the function of conventional Junction Block 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
IGPM control entry
1.
Switch signal input
(1)
Assist the door switch
Driver's seat belt switch
Rear left door switch
Rear right door switch
IGN1 switch
IGN2 switch
Brake fluid sensor
Tailgate open switch
Tailgate lid handle switch
Hazard lamp switch
Head lamp low beams switch
Hood switch
Left front / rear turn signal switch
Right front / rear turn signal switch
Parking brake switch
Driver the door lock/unlock control status
Assist the door lock/unlock control status
Rear left the door lock/unlock status
Rear right the door lock/unlock status
Driver the door switch
Driver the door key lock switch
Driver the door key unlock switch
Driver the door power window lock switch
Driver the door power window unlock switch
(2)
IPS&ARISU
Left Head lamp low beams
Right Head lamp low beams
Left Head lamp high beams
Right Head lamp high beams
Room lamp
Exterior left tail lamp
Exterior right tail lamp
Left front / rear turn signals
Right front / rear turn signals
Body resistance cut control
Front left static bending light
Front right static bending light
(3)
Relay Control
Tailgate lid relay
Door lock/unlock relay
Power window wake-up relay
2.
IGPM protection
(1)
PCL (Programmable Current Limit) functions
PCL replaces the junction block function of protecting wires.
How to operate : If the lamp current exceeds the standard level, cut off the current to protect the lamp.
Lamp cut off time : 300ms or less.
Applied components: all lamp components controlled by IGPM
Output the error code according to the error detection conditions.
(2)
OCL (Open Current Limit)
OCL detects the lamp open state and informs the user of it.
How to operate: Detect the current of the lamp and if it is below the standard level, change the lamp operation.
Applied components: 4 turn signal lamps.
Output the error code according to the error detection conditions.
3.
IGPM 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, IGPM 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 IGPM 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)
IGPM had 3 modes, "Normal Mode", "Sleep Mode", "Power Off Mode". Auto cut of dark current practice in "Sleep Mode".
- "Sleep" condition: IG OFF, consistent state of the input switch during a certain time, non-operation state of the CAN network.
- "Sleep" deactivation condition: switch inputs, operation state of the CAN network, KEY ON, POWER ON.
- "Power off" condition: In the dark current automatic cutoff function, the timer set for cutting the power load runs out.
"Normal Mode" : IGPM function normally activates.
"Sleep Mode" : It is low power mode and activates for reducing electricity consumption of IGPM. Auto cut of dark current function activates.
"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 Consistent switch state
(Auto cut of dark current scenario starts.)
5 minutes after entering the "sleep" state.
IGPM power down(IGPM dark current : 200 μA) and cutting power of Lamp
/Body Load/Wake up/Immobilzer


After delivering to customer
Fuse switch ON
All door close & Constant switch state : Burglar Alarm State=OFF
(Auto cut of dark current scenario starts.)
After "sleep" state is for 20 min.
IGPM power down(IGPM dark current : 200 μA) and cutting power of Lamp Load
In case RKE door lock : Burglar Alarm State=ON & Tailgate Switch=CLOSE
(Auto cut of dark current scenario starts.)
After "Sleep" state 35s-65s (Waiting time of other unit : 30-60s + IGPM
sleep counts 5 min)
IGPM Powerdown(IGPM dark current : 200 μA) and cutting power of
Lamp Load


(4)
Possible problems in case of the fuse switch setting errors
: 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, tailgate 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.
Repair procedures
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 the fuses for any damage.
  
If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always identify the cause of the blown fuse and completely eliminate the problem before installing a new fuse.
Diagnosis with GDS
1.
In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (GDS).
The diagnostic system (GDS) provides the following information.
(1)
Self diagnosis : Checking failure and code number (DTC)
(2)
Current data : Checking the system input/output data state
(3)
Actuation test : Checking the system operation condition
(4)
Additional function : Controlling other features including system option setting and zero point adjustment
2.
Select the 'Car model' and the 'Smart Junction Block (SJB)' to be checked in order to check the vehicle with the tester.
3.
Select the 'Current Data' menu to search the current state of the input/output data.

4.
To forcibly actuate the input value of the module to be checked, select option 'Actuation Test'

5.
If you want to change user option, select "user option".

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the connectors (A) from the fuse side of the SJB.

4.
Remove the SJB (A) after loosening the mounting nuts.

5.
Disconnect the connectors from the back side of the SJB.

Installation
1.
Install the integrated gateway & power control module (SJB).
2.
Install the crash pad lower panel.
3.
Connect the negative (-) battery terminal.
4.
Check that all system operates normally.

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