The control over MRG via EN_HY or MRAUC or both does not work.
<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 control over MRG via EN_HY or MRAUC or both does not work.
MRG is either always switched ON or Not able to Switch OFF when Hydraulic Enable or MRA control is pulled LOW.
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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