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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> On-Board Diagnostic [Immobilizer System (With Keyless Entry System)] >> Security Light: 16, DTC: U0100:87/P1260:00 [Immobilizer System (Keyless Entry System)] >> Notes
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Security Light: 16, DTC: U0100:87/P1260:00 [Immobilizer System (Keyless Entry System)]: Notes

DTC  Security light flashing pattern  16  Communication error between instrument cluster and PCM (no response)
M-MDS display  Instrument cluster U0100:87
PCM  P1260:00
POSSIBLE CAUSE 
  • Malfunction in wiring harness (CAN line) between instrument cluster and PCM
  • PCM malfunction
  • Instrument cluster malfunction