Hyundai Elantra (CN7): Keyless Entry And Burglar Alarm / Repair procedures

Hyundai Elantra (CN7) 2021-2026 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")
3.
Disconnect the connector from the actuator.

No
Pin Information
LH
RH
1
Key Lock switch
CL motor
2
Key Unlock switch
COM motor
3
COM
-
4
Lock / Unlock switch
AJAR switch
5
AJAR switch
Lock / Unlock switch
6
-
COM
7
COM motor
Key Unlock switch
8
CL motor
Key Lock 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")
3.
Disconnect the connectors from the actuator.

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

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")

    Specification Item Specification Power source3VOperating temperature-10°C ~ +60°CRF ModulationFSKLF ModulationASKRF frequency433.

    Other information:

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Specification

    S

    Hyundai Elantra (CN7) 2021-2026 Service Manual: Troubleshooting

    TroubleshootingProblem Symptoms TableBefore replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem.

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