Transmission Range (Tr) Switch: Protege

1999 Mazda Protege ES, AutomaticSECTION Protege

Disconnect negative battery cable. Disconnect TR switch harness connector. Place transmission in Neutral. Loosen TR switch retaining bolts. Connect an ohmmeter between terminals "A" and "H" at TR switch. See Fig 1. Adjust switch until there is continuity between terminals "A" and "H" at TR switch. Tighten TR switch retaining bolts to 70-95 INCH lbs. (8-11 N.m). Connect TR switch harness connector. Connect negative battery cable. Ensure vehicle will only start with transmission in Park or Neutral.

Fig 1: Identifying Transmission Range (TR) Switch Terminals (Protege)
G98A03876Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

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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.