Hyundai Sonata LF: Keyless Entry And Burglar Alarm / Repair procedures

Hyundai Sonata LF 2014-2019 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	AJAR Switch	Motor 2
2	COM	Motor 1
3	Lock / UnLock switch	-
4	Key Lock switch	Key Unlock switch
5	Key Unlock switch	Key Lock switch
6	-	Lock / UnLock switch
7	Motor 1	COM
8	Motor 2	AJAR switch

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	AJAR Switch	Motor 2
2	COM	Motor 1
3	Lock / UnLock switch	-
4	-	-
5	-	-
6	-	Lock / UnLock switch
7	Motor 1	COM
8	Motor 2	AJAR Switch

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.

Trunk Open Switch

1.	Disconnect the negative (-) battery terminals.

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

3.	Disconnect the trunk open switch assembly connector (A).

4.	Check for continuity between terminals in half latching condition according to the table.

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")

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 and flashing...

BCM (Body Control Module)

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