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Home >> Mazda >> 2011 >> 6 s Touring Plus >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic [Advanced Keyless Entry And Push Button Start System) >> Security Light: 16, DTC: U0100:87/P1260:00 [Immobilizer System (Advanced Keyless Entry And Push Button Start System)] >> Notes

Security Light: 16, DTC: U0100:87/P1260:00 [Immobilizer System (Advanced Keyless Entry And Push Button Start System)]: Notes

DTC: U0100:87/P1260:00 POSSIBLE CAUSE REFERENCE CHART

DTC  Security light flashing pattern  16  Communication error between keyless control module and PCM (no response/condition mismatch) 
M-MDS display  Keyless control module  U0100:87 
PCM  P1260:00 
POSSIBLE CAUSE 
  • Malfunction in wiring harness (CAN line) between keyless control module and PCM
  • PCM malfunction
  • Keyless control module malfunction
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