Which fuse controls the power door lock?
The fuse that protects the power door lock circuit is usually a dedicated fuse labeled for door locks or central locking, and it sits in one of the vehicle’s fuse panels—often the interior fuse box or the engine compartment fuse box. Exact labeling and location vary by make, model, and year.
Where the fuse is usually found
The power door lock circuit is commonly protected by a fuse that appears on the fuse panel diagram near the front of the car. In many vehicles, the relevant fuse sits in the interior fuse box (behind the glove box or under the dash) or in the engine bay fuse box. Look for labels such as DOOR LOCKS, POWER DOOR LOCKS, CENTRAL LOCKING, or DOOR CTRL; sometimes the circuit is labeled differently or shared with related systems.
Common fuse label names and typical locations:
- DOOR LOCKS or POWER DOOR LOCKS: interior fuse panel or engine bay (model dependent)
- CENTRAL LOCKING, CENTRAL LOCK, or CL: often near the interior fuse box
- DOOR CTRL or DOOR LOCK CIRCUIT: may be shared with other circuits like power windows
- PWR LOCK or PWR DOOR LOCK: alternate labeling on some makes
- Related labels such as PWR WINDOWS or a BCM/ECU power-supply fuse: door lock circuits may piggyback on these
Because fuse labeling and exact locations vary widely, consult your owner's manual or the fuse box diagram for the precise fuse and its amperage. Amperage ratings typically range from 5 to 20 amps, depending on how the circuit is wired in your vehicle.
How to locate and verify the fuse
To identify and safely verify the correct fuse, follow these steps:
- Check the owner's manual or the fuse box cover for the diagram that marks the fuse for door locks or central locking. Note whether it’s in the dash, glove box, or engine bay.
- With the vehicle off, remove the suspected fuse using the fuse puller and inspect for a blown filament or discoloration. You can also test continuity with a multimeter.
- Replace the fuse with an identical amperage rating and type (for example, a 10A fast-blow fuse) and reseat it securely.
- Test the lock/unlock function across all doors to confirm operation. If it still fails, inspect door lock actuators, door wiring, and the central locking module (BCM/ECU) for faults.
In many cars, a single fuse can feed multiple systems, so replacing it may restore several functions that rely on that circuit. If the fuse repeatedly blows, there is likely an overload or a short somewhere in the door lock wiring or a faulty actuator, which warrants professional diagnosis.
What to do if the fuse seems fine but the doors won’t lock
Common culprits
If the fuse is intact but the doors still fail to lock, the issue may lie with a faulty door lock actuator, a bad door switch, damaged wiring in the door jamb, or the central locking module (BCM/ECU). A professional diagnostic can trace the circuit and test individual components with specialized equipment.
Safety and maintenance tips
Always handle fuses with the car off and the key removed. If you replace a fuse and it blows again, do not keep driving the vehicle—repeated blows indicate a fault that needs diagnosis to prevent electrical damage or safety issues.
Summary
Power door lock fuses are model-specific and labeled in one of several ways, typically DOOR LOCKS, POWER DOOR LOCKS, CENTRAL LOCKING, or DOOR CTRL. Identify the correct fuse by consulting the manual or diagram for your vehicle, inspect and replace it with the same rating if blown, and test the system. If problems persist after a fuse replacement, the root cause is likely an actuator, wiring, or the central locking module, which may require professional inspection.
Is there a fuse for power door locks?
Power door locks often fail due to blown fuses or faulty door lock actuators. Start by checking the vehicle's fuse box, usually located under the dashboard or in the engine compartment. Identify the fuse labeled for power door locks and inspect it for damage. Replace any blown fuse with one of the same amperage.
What caused power door locks to stop working?
Power door locks are prone to failures due to electrical interruptions, corrosion, broken wires or blown fuses. Find out why a lack of any movement in door locks is most likely a result of a blown fuse with help from an auto mechanic in this free video on troubleshooting car problems. Expert: JB Hebert Contact: www.
Where is the anti-lock fuse located?
The anti-theft fuse is a small part in your car that helps run the security system. It's usually found in the fuse box on the driver's side, directly in front of your left knee. In some vehicles, the anti-theft fuse can be in the fuse box under the hood, usually behind the air filter.
What controls the power door lock?
Power door locks use electric motors to engage and disengage the door locks on your car. Owners can control their door locks via door- or console-mounted switches or buttons or remotely by a key fob or smartphone app.
