1981 Mazda B2000 BaseFACTORY OEM SERVICE PROCEDURE

All Other Models

Remove instrument panel from dashboard. Remove speedometer glass and connect test lamp and battery. See Fig 1. When speedometer needle indicates less than 63 MPH, test lamp should glow. When speedometer needle indicates more than 63 MPH, lamp should not glow. If not, replace vehicle speed switch.

Fig 1: Testing Vehicle Speed Switch (GLC and GLC Wagon)
G09313935Courtesy of MAZDA MOTORS CORP.
Factory Service Tools

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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.

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