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Stoplight Switch

  1. Disconnect electrical connector at stoplight switch mounted near top of brake pedal. Note terminal identification on stoplight switch. See Fig 1.
  2. Using ohmmeter, check that continuity exists between terminals No. 1 and 2 with brake pedal depressed. Check that no continuity exists between terminals No. 1 and 2 with brake pedal released.
  3. Check that no continuity exists between terminals No. 3 and 4 with brake pedal depressed. Check that continuity exists between terminals No. 3 and 4 with brake pedal released. Adjust or replace stoplight switch if operation is not as described.
Fig 1: Identifying Stoplight Switch Terminals
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