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Hyundai Azera: Relay Box (Passenger Compartment) Description and Operation - Fuses And Relays - Body Electrical System - Hyundai Azera 2011-2026 Service ManualHyundai Azera: Relay Box (Passenger Compartment) Description and Operation

Fifth generation HG (2011–2026) / Hyundai Azera 2011-2026 Service Manual / Body Electrical System / Fuses And Relays / Relay Box (Passenger Compartment) Description and Operation

Description
Auto cut system of dark current

1.
Description : It cuts automatically power to the load to reduce parastic current draw.

2.
IPM 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" : IPM function normally activates.
E.
"Sleep Mode" : It is low power mode and activates for reducing electricity consumption of 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.
 -IPM power down(IPM 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.
 -IPM power down(IPM 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)
 -IPM Powerdown(IPM 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, below problems may happen.
Symptom
Related part
• Door lock/unlock, trunk open don't activate by RKE.
(Wakeup of each module don't activate.)
IPM
• Digital clock is reset.(Memory is reset.)
Digital clock
• Setting value of audio(Volume, Frequency setting) is reset.
(Memory is reset.)
Audio

*If mode 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
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Relay Box (Passenger Compartment) Repair procedures
Fuse Inspection 1. Be sure there is no play in the fuse holders, and that the fuses are held securely. 2. Are the fuse capacities for each circuit correct? 3. Are there any blown fuses? I ...

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