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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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