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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 >> DTC U0447-86: Error Signal Received From Instrument Cluster [Start Stop Unit] >> Notes

DTC U0447-86: Error Signal Received From Instrument Cluster [Start Stop Unit]: Notes

DTC U0447:86 [START STOP UNIT] DETECTION CONDITION AND POSSIBLE CAUSE

Description Error signal received from instrument cluster
Detection condition
  • Start stop unit receives the error signals from the instrument cluster for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe
  • Sets to default signal.
Possible cause
  • DTCs are stored in the instrument cluster.
  • Instrument cluster malfunction
  • Start stop unit malfunction
System wiring diagram Not applicable