my Volkswagen Tiguan's interior lights stay on when doors are closed why

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the ignition is off.
• Disconnect the negative terminal of the battery to prevent any electrical short circuits.

2. Inspect Door Switches

• Tools Required: Multimeter
• Locate each door switch (typically found in the door jamb).
• Remove the door panel if necessary for access.
• Use a multimeter to test for continuity when the door is closed. If there is no continuity, replace the switch.
• Reassemble door panels after inspection.

3. Check Wiring and Connections

• Inspect the wiring harness connected to each door switch for signs of wear or damage.
• Look for frayed wires, corrosion, or loose connections.
• If issues are found, repair or replace the damaged wiring as necessary.

4. Examine Interior Light Switch Settings

• Ensure that the interior light switch is not set to "Always On" mode.
• Adjust the switch to "Door" mode to allow the lights to turn off when doors are closed.

5. Testing

• Reconnect the negative terminal of the battery.
• Open and close each door to verify that the interior lights function correctly and turn off when the doors are closed.