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Home >> Mazda >> 2009 >> 3 Mazdaspeed, 2.3 L >> Repair and Diagnosis >> External Pages >> Different car >> Section 573 (On-Board Diagnostic Immobilizer System (Keyless Entry System)) >> DTC Inspection [Immobilizer System (Keyless Entry System)] >> Security Light

Security Light

WARNING: This page is about a different car, the 2007 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch to the ON position.
  2. Verify the security light state.
    • If there is any malfunction:
      • After any malfunction is detected, the security light will function as follows for approx. 1 min  .
        • DTC 16 and lower: Flashes
        • DTC 21 and higher: Illuminated
    • If there is no malfunction:
      • The security light illuminates for approx. 3 s  and goes out.
  3. When any malfunction has been detected, read DTCs via flashing patterns displayed after the security light flashes or is illuminated for approx. 1 min  .
    • Perform troubleshooting according to the corresponding DTC inspection.
    NOTE:
    • A verified DTC is flashed 10 times repeatedly by the security light.
    • If multiple DTCs are verified, the security light displays only the smallest DTC.
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