DPB_a257_valveRelayOnContinuous
Power braking assist reduced
What does the DPB_a257_valveRelayOnContinuous alert mean?
VR can not be switched off.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
(1) UVR voltage does not fit to the target VR state, Comparing UVR and UBVR. (2) VR does not switch off in hydraulic failsafe state, Comparing UVR and UBVR.
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
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