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Home >> Mazda >> 2021 >> 6 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> On-Board Diagnostic - Start Stop Unit >> Security Indicator Light: 16, DTC: U0100-87/P1260-00: Communication Error With Pcm (No Response Or Data Mis-Match) [Start Stop Unit] >> Notes
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Security Indicator Light: 16, DTC: U0100-87/P1260-00: Communication Error With Pcm (No Response Or Data Mis-Match) [Start Stop Unit]: Notes

SECURITY INDICATOR LIGHT: 16, DTC: U0100:87/P1260:00 [START STOP UNIT] DETECTION CONDITION AND POSSIBLE CAUSE

Description Communication error with PCM (no response or data mis-match)
Detection condition
  • Start stop unit detects a communication error (no response or immobilizer system cancel not possible) with the PCM.
Fail-safe Not applicable
Possible cause
  • The immobilizer system-related parts have not been programmed when replacing the PCM or start stop unit.
  • Start stop unit malfunction
  • PCM malfunction
System wiring diagram Not applicable