Brake Light Switch: Notes
For servicing purposes, they will be referred to as "old style" and "new style". It is important to identify which style of switch is installed, prior to servicing, as each requires specific removal and installation (replacement) procedures. See Fig 1.
"Old style" switch is identified by a large (approximately 10 mm) plunger tip button, and a square plunger shaft. "New style" switch is identified by a small (approximately 4 mm) plunger tip without a button, and round plunger shaft. "Old style" switches can be removed and reinstalled/adjusted. "New style" switch must NOT be reused after removal. Always replace. Should a brake light switch require replacement, only a specific "new style" switch is available (supersedes all previous part number versions). This switch requires critical procedures be followed, prior to and during installation.