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DTC B13D3 94/P1260 00 Security Indicator Light 13: Communication Error With Remote Transmitter: Notes

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC: B13D3:94/P1260:00 (IMMOBILIZER SYSTEM) DETECTION CONDITION AND POSSIBLE CAUSE

Description  Communication error with remote transmitter 
Detection condition 
  • Start stop unit could not detect the remote transmitter communication or communication error was detected.
Fail-safe function  Not applicable
Possible cause 
  • When the ignition is switched ON (engine off or on), it is detected that the remote transmitter is outside of the vehicle.
  • Push button start connector or terminal malfunction
  • Start stop unit connector or terminal malfunction
  • Remote transmitter malfunction
  • Start stop unit malfunction
    NOTE:
    • If any of the following items are touching or near the remote transmitter, signal communication between the remote transmitter and the vehicle is negatively affected, resulting in the engine not starting.
      • Spare keys
      • Keys for other vehicles equipped with an immobilizer system
      • Any metallic object
      • Any electronic device, or any credit or other card with magnetic strips
      • Radio wave outputting device nearby
System wiring diagram  Not applicable