If your Maruti vehicle (like WagonR, Swift, Alto, etc.) is having lock/unlock problems, here are the common causes and solutions:
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🔧 Common Lock/Unlock Issues:
1. Key Fob / Remote Not Working
Battery Weak/Dead: Replace the button cell (usually CR2032).
Remote Unpaired: May need reprogramming.
Physical Damage: Water or drops can damage the internal circuit.
2. Central Locking System Fault
Blown Fuse: Check the central locking fuse under the dashboard.
Control Module Fault: The BCM (Body Control Module) may be malfunctioning.
Loose Wiring/Connector: In the door or under the dashboard.
3. Driver Door Unlocks, Others Don’t
This may be due to:
Faulty actuators in the doors.
Relay problem (central lock relay).
Manual override or setting in some models.
4. Door Lock Actuator Failed
You may hear a clicking sound but no movement—actuator may be jammed or burned out.
5. Mechanical Lock Jammed
Dust, rust, or broken linkages inside the door can prevent movement.
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✅ Basic Troubleshooting Steps:
1. Replace key fob battery – simplest and most common fix.
2. Try using the spare key – to rule out key fob issues.
3. Check central lock fuse – locate it in the fuse box and replace if blown.
4. Open door pad (if possible) – and check actuator or wiring.
5. Scan with OBD tool – for error codes in BCM or central locking system.
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