2000 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

Brake Switch

WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Brake switch terminals "A" and "B" control brakelights. Terminals "C" and "D" control cruise control cancel operation.
  1. Disconnect brake switch harness connector. Check continuity between brake switch terminals "A" and "B". See Fig 1 . With brake pedal depressed, continuity should exist. With brake pedal released, continuity should not exist. If continuity is as specified, go to next step. If continuity is not as specified, replace brake switch.
  2. Check continuity between brake switch terminals "C" and "D". With brake pedal depressed, continuity should not exist. With brake pedal released, continuity should exist. If continuity is as specified, brake switch is okay at this time. If continuity is not as specified, replace brake switch.
Fig 1: Identifying Brake Switch Terminals
G98F03874Courtesy of MAZDA MOTORS CORP.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.