DPB_a092_decoupleBitTestFault
Power braking assist reduced
What does the DPB_a092_decoupleBitTestFault alert mean?
Alert in system ASIC: Electric or hyraulic decouple bit not reset automatically.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
System chip internal decouple bits are not reset within the expected time. The failsafe logic test sets the hydraulic and electric decouple bits of the system chip.
When it clears
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.
Affected models
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.