DIY: Cleaning Your Door Switches

By syaiful 10 hours ago

Does your door-ajar indicator occasionally light up even though you’re very sure all’s firmly shut? Or does your alarm system fail to arm because it sense one of the doors, boot or bonnet is not closed? Normally many would dismiss those as an inevitable visit to the electrical man. However in truth, its often just a minor mechanical glitch affecting the door switch which can be easily fixed.

Small and simple mechanism

Tools

• screw driver
• sand paper
• anti-rust spray

Method

1. Locate the door switch usually found near the door latch on the B- or C-pillar

2. With a screw driver, unscrew and pop out the switch

Unscrew

3. If the connecting base looks dirty or oxidized, sand it off using sand paper

Clean the connections

4. Spray some anti-rust into the screw hole for protection

Applying anti-rust here will help minimize rust at the screw-hole

5. Also spray some anti-rust into the opening of the switch. This would provide protection and lubricate the spring and mechanicals.

Apply protection for the internals

6. Reassemble the switch and continue with the other doors

Anti rust Door Switch Electrical connection