Hyundai Santa Fe (TM): Body Electrical System / Keyless Entry And Burglar Alarm

Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual / Body Electrical System / Keyless Entry And Burglar Alarm

Description and operation

Description
Burglar Alarm State [B/A State]
B/A State
Description
DISARM
1)
In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound and flashing.
2)
If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM", B/A state is set to "DISARM" state.
3)
In "DISARM" state, security indicator keeps blinking.
ARMWAIT
1)
In "ARMWAIT" state, when timer "30sec." is running, if this timer reaches "30sec", state transits to "ARM" state.
2)
If the battery is disconnected while the state is "ARMWAIT", B/A state is set to "ARMWAIT" state and timer "30sec" is restarted.
3)
In "ARMWAIT" state, security indicator keeps on.

※ Remark: On Smart key system, it works the same way with passive lock
B/A State
Description
AUTO LOCK TIMER 1
1)
In "AUTOLOCKTIMER1" state, timer "30sec."is running. If this timer expired, the auto lock command is generated "Lock command".
2)
When "Lock command" operated, All Door changed lock and closed then B/A state changes "AUTOLOCKTIMER1" to "ARMWAIT
3)
In "AUTOLOCKTIMER1" state, Security Indicator keeps blinking. In "AUTOLOCKTIMER1" state, timer "30sec."is running. If this timer expired, the auto lock command is generated "Lock command". When "Lock command" operated, All Door changed lock and closed then B/A state changes "AUTOLOCKTIMER1" to "ARMWAIT

※ Remark: On Smart key system, it works the same way with passive unlock
B/A State
Description
AUTO LOCK TIMER 2
1)
In "AUTOLOCKTIMER2" state, when timer "30sec."is running, if this timer expired, the auto lock command is generated "Lock command".
2)
All doors are Locked, Hood is closed and Tailgate is closed when "Lock command" operated, then B/A state changes to"AUTOLOCKTIMER2" when "Lock Command" generated with Hood open.
3)
When "Unlock command" operated on the condition of All Door closed and Hood open, B/A state changes to "AUTOLOCKTIMER2".
4)
In "AUTOLOCKTIMER2" state, Security Indicator keeps blinking.

※ Remark: On Smart key system, it works the same way with passive unlock
B/A State
Description
PRE ARM
1)
The "PREARM" state is when user try to change to arm but pre-condition are not satisfied (door open, tailgate open, or hood open).
2)
B/A state changes to "PREARM" when TX Lock command occurs with any door Open, Hood or Tailgate Open.
3)
B/A state changes to "PREARM" when "30sec." timer expired in"AUTOLOCKTIMER2"with Hood or Tailgate Open
4)
The "PREAMR" state changes to "ARM" when all doors closed, All doors locked and Hood and Tailgate closed.
5)
The "PREAMR" state changes to "DISARM" when Any Door Unlock
6)
In this state, Security indicator keeps blinking.

B/A State
Description
RE ARM
1)
In "REARM" state, if the vehicle intrusion is detected, flashing and sound is restarted, again and state transits to "ALARM" state.
2)
B/A state changes to "REARM" after the timer "27sec." expires in "ALARM" state with All doors closed and lock.
3)
Security Indicator keeps blinking.

B/A State
Description
AUTOLOCK TIMER3
1)
B/A state changes to "AUTOLockTIMER3", when TX-Tailgate command operated.
2)
B/A state changes "AUTOLOCKTIMER3" to "ARMWAIT", when the "30sec." timer expires with all doors lock and closed.
3)
B/A state changes "AUTOLOCKTIMER3" to "DISARM", when any door open.
4)
In "AUTOLOCKTIMER3" state, timer "30sec." timer is running. If this timer expired, state transits to "PREARM" state with Tailgate Open.
5)
In this state, Security indicator keeps blinking

Components and components location

Component Location

1. Hood switch
2. Burglar horn
3. Intergrated Body Control Unit (IBU)
4. Key warning switch
 5. Front door lock actuator & switch
6. Rear door lock actuator & switch
7. Tailgate open switch

Specifications

Specification
Item
Specification
Power source
 3V
Operating temperature
 -20°C to +60°C (-4°F to- +140°F)
RF Modulation
 FSK
LF Modulation
 ASK
RF frequency
 433.92MHz
Battery
 CR2032
Transmissible distance
 10m or more
Life of battery
 2years or more (at 20 times per day)
Button number
 4
Function
 Door lock
Door unlock
Tailgate unlock
Panic

Repair procedures

Inspection
Front Door Lock Module Inspection
1.
Remove the front door trim.
(Refer to Body - "Front Door Trim")
2.
Remove the front door module.
(Refer to Body - "Front Door Module")
3.
Disconnect the connectors from the actuator.
4.
Check actuator operation by connecting power and ground according to the table.
[Dead Lock]
Pin
Driver
Panssenger
1
 M1
 M1
2
 -
 M2
3
 COM
 M3
4
 Lock/Unlock switch
 AJAR
5
 AJAR
 Lock/Unlock switch
6
 -
 COM
7
 M3
 Key lock
8
 M2
 Key unlock

[Central Lock]
Pin
Driver
Panssenger
1
 -
 M2
2
 -
 M3
3
 COM
 -
4
 Lock/Unlock switch
 AJAR
5
 AJAR
 Lock/Unlock switch
6
 -
 COM
7
 M3
 -
8
 M2
 -

[Central Lock]

[Dead Lock]
Driver

Passenger
Rear Door Lock Module Inspection
1.
Remove the rear door trim.
(Refer to Body - "Rear Door Trim")
2.
Remove the rear door module.
(Refer to Body - "Rear Door Module")
3.
Disconnect the connectors from the actuator.
4.
Check actuator operation by connecting power and ground according to the table.
[Central Lock]
Pin
Driver
Panssenger
1
 -
 M1
2
 COM
 M2
3
 Lock/Unlock switch
 -
4
 AJAR
 -
5
 -
 AJAR
6
 -
 Lock/Unlock switch
7
 M2
 COM
8
 M1
 -

[Dead Lock]
Pin
Driver
Panssenger
1
 -
 M3
2
 COM
 M2
3
 Lock/Unlock switch
 -
4
 AJAR
 M1
5
 M1
 AJAR
6
 -
 Lock/Unlock switch
7
 M2
 COM
8
 M3
 -

[Child Lock]
Pin
Driver
Panssenger
1
 Power Child switch
 M2
2
 COM
 M3
3
 Lock/Unlock switch
 M1
4
 AJAR
 M4
5
 M4
 AJAR
6
 M1
 Lock/Unlock switch
7
 M3
 COM
8
 M2
 Power Child switch

Tailgate Lock Module Inspection
1.
Remove the tailgate trim.
(Refer to Body - "Tailgate Trim")
2.
Disconnect the 4P connector from the actuator.
3.
Check actuator operation by connecting power and ground according to the table.
Hood Switch
1.
Disconnect the connector and bolts from the hood switch.
2.
Check for continuity between the terminals and ground according to the table.

    Removal Interior 1 Antenna    Take care not to scratch the crash pad and related parts.

    Description and operation Description Body Control Module Controls The Followings – Wiper & Washer Control – Defroster Control – Driving Control – Tailgate Control – Window Control – Interior Control – Exterior Control – Panic alarm Control – MTS – Flasher output Control – Door lock/unlock Control – Burglar alarm Control – Remote start Control – UMS(User Mode Setting) Control – Gateway/ Diagnosis Integrated Body Control Unit (IBU) Integrated body control unit has integrated several functions including body control module (IBU), smart key unit (SMK), and tire pressure monitoring system (TPMS).

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Auto Lighting Control System

    Description and operation Description It's a system that uses illumination sensor to automatically turn ON the tail lamp and head lamp based on the change in surrounding environment's illumination condition. It activates when the vehicle enters/exits tunnel, or when the illumination condition in surrounding environ

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: A/C Pressure Transducer. Repair procedures

    Inspection    • Before measuring the pressure of the refriferant line, check whether the refrigerant amount is charged in accordance with the specified charging amount.

    Categories

     
    Copyright © 2026 www.hsafe4.com - 0.0193