What Causes All Power Door Locks to Stop Working Suddenly in My Hyundai Tucson?

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What Causes All Power Door Locks to Stop Working Suddenly in My Hyundai Tucson?

All of my Tucson’s door locks stopped working at once — neither the remote nor the inside buttons activate them. Could this be due to a blown fuse, faulty control module, o r battery issue?

Gari Specialist asked on 14 Jun 2025 12:45:56 pm

1 Answer

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Gari Master - on 14 Jun 2025 12:48:57 pm

When all door locks stop functioning simultaneously, common causes include:

Blown fuse for the central locking system — easiest to check first.

Faulty door lock control module o r Body Control Module BCM.

Weak o r dead car battery causing insufficient power for electrical accessories.

Damaged wiring harness o r loose connectors at the fuse box o r door modules.

Troubleshooting steps:

Check and replace fuses related to door locks.

Test battery voltage a low battery can affect power locks.

Scan the vehicle with an OBD-II tool for BCM errors.

Inspect wiring at fuse box and door control modules.

Most mechanics in Pakistan can handle fuse checks and simple wiring fixes. BCM issues might require authorized service.When all door locks stop functioning simultaneously, common causes include:

Blown fuse for the central locking system — easiest to check first.

Faulty door lock control module o r Body Control Module BCM.

Weak o r dead car battery causing insufficient power for electrical accessories.

Damaged wiring harness o r loose connectors at the fuse box o r door modules.

Troubleshooting steps:

Check and replace fuses related to door locks.

Test battery voltage a low battery can affect power locks.

Scan the vehicle with an OBD-II tool for BCM errors.

Inspect wiring at fuse box and door control modules.

Most mechanics in Pakistan can handle fuse checks and simple wiring fixes. BCM issues might require authorized service.