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Home >> Mazda >> 2012 >> 6 i Touring Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 569 (On-Board Diagnostic [Immobilizer System (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

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
U0100:87/P1260:00 REFERENCE

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