Operational Test (Miata)

1991 Mazda 929 BaseSECTION Operational Test (Miata)
  1. Start engine, and observe ANTI-LOCK light. Light should illuminate for a few seconds. If light does not illuminate as described, remove instrument cluster. Connect 12 volts to terminal 2k of instrument cluster. See Figure . Using a jumper wire, connect terminal 1K of instrument cluster to ground. ANTI-LOCK light should illuminate. If light does not illuminate, check bulb. If bulb is okay, check meter fuse and wiring harness.
  2. Install instrument cluster, and recheck warning light operation. If light still does not illuminate for a few seconds, check wiring harness between ANTI-LOCK light and control unit and between ANTI-LOCK light and hydraulic unit. Check operation of hydraulic unit valve relay.
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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.