Anti-Theft Horn Operation

1994 Toyota Previa LE, 2TZ-FZE, AWDSECTION Anti-Theft Horn Operation

Turn ignition off. Locate anti-theft horn and disconnect horn 2-pin connector. Connect battery positive lead to terminal No. 2 (Green/Orange wire). If anti-theft horn does not blow, replace horn. If anti-theft horn is okay, repair open or short in harness or connectors between HAZ/HORN fuse and ATS ECU as necessary. If harness and connectors are okay, replace ECU and retest.

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.