Security Light: 12, DTC B2103/P1260: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
SECURITY LIGHT: 12, DTC B2103/P1260 POSSIBLE CAUSE TABLE

SECURITY LIGHT: 12  Coil malfunction
DTC: B2103/P1260 
DETECTION CONDITION 
  • Coil malfunction
POSSIBLE CAUSE 
  • Coil malfunction
  • Poor connection of the coil connector
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.