The hydraulic enable line can't be switched off via the uC or via the system IC.
<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.
The hydraulic enable line can't be switched off via the uC or via the system IC.
ECU internal electrical enable line has either a short to 3.3V or cannot be switched off by the micro controller or the system chip. Initial test of the ECU internal hydraulic enable line detects that enable line cannot be switched off by the software.
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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