Difficulty Level

Tools/Supplies Needed:

• small standard/flat screwdriver
• aluminum oxide sandpaper
• paper/cardboard
• electrical contact cleaner

Procedure:

• work in an area you do not risk the chance of losing any of the small components
• using a small standard screwdriver, split the case open
• the grey portion or top portion of the case must be pulled straight up, as the spring contacts sit in dividers inside the case
• now remove the round faceplate
• remove the rotation portion which controls the opening and closing of the contacts
• remove the small contact and spring from the rear of the assembly which activates the "key in ignition" warning light
• wiggle each of the contacts to determine if there is resistance or grabbing in the contact
• using aluminum oxide sandpaper (only use this form of sandpaper or an electrical safe sandpaper as it doesn't leave any dust/residue behind which could cause issues), fold it so there is abrasive materials on both sides
• spread the contact open, slip the sandpaper between the contact, close the contact, then move the sandpaper back and forth
• sand until satisfied and there is no more resistance or grabbing in the contact when wiggled
• do this for each of the contacts
• some maybe worse than others
• the "key in ignition warning light switch can be clean with either paper or cardboard
• once done, using electrical contact cleaner to spray/wash each of the contacts be sure to use electrical contact cleaner in a well ventilated area
• allow the switch to dry
• you can test the switch with a multimeter to ensure everything is working correctly for reassembly
• reassemble in reverse of disassembly