Watchdog status of system IC deviates from the expected one.
<0.01% (Extremely rare)
Power braking assist reduced
Braking may require increased effort
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
Watchdog status of system IC deviates from the expected one.
Erroneous safety logic (e.g. watchdog trigger is not detected by system chip, unintended setting of alert flip-flop within system chip). After the failsafe logic test has finished the status of the watchdog or rather the safety logic is being continuously monitored. If the status is not as expected this fault is logged.
No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.
Model Y 2025+
customer, service-fix
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