DPB_a097_ecuEnableHyHighFault
Description
The hydraulic enable line can't be switched on via the uC and via the system IC.
Condition
ECU internal hydraulical enable line has either a short to ground or cannot be switched on by the micro controller and the system chip. Initial test of the ECU internal hydraulic enable line detects that enable line cannot be switched on by the software.
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+