Security Indicator Light: 22, DTC: B10DA-51; P1260; Start Stop Unit Communication Error With Pcm (Data Received Failure): Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

Description	Communication error with PCM (data received failure)
Detection condition	Start stop unit detects a communication error (data received failure) with PCM.
Fail-safe	Not applicable
Possible cause	The immobilizer system-related part programming has not been performed when replacing the PCM or start stop unit. Start stop unit malfunction PCM malfunction
System wiring diagram	Not applicable