1. Disable the Child Lock:
Using the key, turn the child lock switch to the "Unlocked" position. This should allow the door to be opened from the inside, even with the child lock engaged.
2. Check the Door Handle Mechanism:
- If the child lock switch is disengaged and the door still won't open, there may be an issue with the door handle mechanism.
- To access the door handle mechanism, remove the door panel.
- Inspect the door handle components, including the latch, clips, and rods, for any damage, misalignment, or obstructions.
3. Clean and Lubricate:
- Clean any dirt, debris, or rust that may have accumulated on the door handle mechanism.
- Apply a suitable lubricant, such as silicone spray, to the moving parts of the mechanism. This can help smooth out the operation and reduce friction.
4. Check the Pull Rod Connection:
- Ensure that the pull rod that connects the door handle to the latch is properly attached and not disconnected or broken.
- If the pull rod is disconnected, reconnect it securely. If it's broken, you may need to replace the pull rod.
5. Examine the Latch Assembly:
- Inspect the door latch assembly for any issues, such as misalignment, wear, or damage. If necessary, replace the latch assembly.
6. Reassemble the Door Panel:
- After fixing the door handle mechanism, reassemble the door panel. Make sure all the screws, clips, and components are properly secured.
Test the door handle to ensure that it's working properly both from the inside and outside of the vehicle. If the issue persists, there may be a more complex mechanical issue within the door locking system that requires professional inspection and repair. In this case, it's recommended to consult a qualified automotive technician.
