DPB_a104_ecuWdStartuptestFault
Description
During failsafe logic test actual and expected WD status of System IC differ.
Condition
Erroneous safety logic within system chip or feedback of system chip is wrong. During failsafe logic test the watchdog status feedback from the system chip is tested against several patterns according to the ongoing sub test. If the watchdog status is not as expected this fault is logged.
Clear Condition
No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.
Potential Impact
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
Customer Facing Message 1
Power braking assist reduced
Customer Facing Message 2
Braking may require increased effort
Audiences
customer;service-fix
Models
Model Y 2025+