Hyundai Elantra: Keyless Entry And Burglar Alarm / Repair procedures

Hyundai Elantra AD (2016-2020) Service Manual / Body Electrical System / Keyless Entry And Burglar Alarm / Repair procedures

Inspection

•	Wrap the protective tape on the tool to disassemble with the screwdriver or remover.

•	Use caution in keeping and handling during disassembling/assembling because it is easily contaminated with lubricant and oil.

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")

Disconnect the connector from the actuator.

No	Pin Information
No	LH	RH
1	-	-
2	Lock / Unlock switch	Motor 2
3	COM	Motor 3
4	Key Lock switch	Key Unlock switch
5	Key Unlock switch	Key Lock switch
6	Motor 3	COM
7	Motor 2	Lock / Unlock switch
8	-	-

4.	Check actuator operation by connecting power and ground according to the table. To prevent damage to the actuator, apply battery voltage only momentarily.

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")

Disconnect the connectors from the actuator.

No	Pin information
No	LH	RH
1	-	-
2	Lock / Unlock switch	Motor 2
3	COM	Motor 3
4	-	-
5	-	-
6	Motor 3	COM
7	Motor 2	Lock / Unlock switch
8	-	-

4.	Check actuator operation by connecting power and ground according to the table. To prevent damage to the actuator, apply battery voltage only momentarily.

Tailgate Lock Module Inspection

1.	Remove the trunk lid trim. (Refer to Body - "Trunk Lid Trim")

2.	Disconnect the connector from the actuator

3.	Check actuator operation by connecting power and ground according to the table. To prevent damage to the actuator, apply battery voltage only momentarily.

4.	Checking the trunk of the vehicle power option power refers to the trunk module.

Hood Switch

1.	Disconnect the connector (A).

2.	Check for continuity between the terminals and ground according to the table (Refer to Body - "Hood Latch")

Burglar Horn Inspection

1.	Remove the burglar horn (A) after loosening the mounting bolts and disconnecting the connector (B).

2.	Test the burglar horn by connecting battery power to the terminal 2 and ground the terminal 1.

Description and Operation

Description Burglar Alarm State [B/A State] B/A StateDescriptionDISARM 1. In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound ...

BCM (Body Control Module)

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