DPB_a127_hydraulicAsicShortCircuit
Power braking assist reduced
What does the DPB_a127_hydraulicAsicShortCircuit alert mean?
Short circuit beteen Qx pin and MRAuC pin are detected.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
Short circuit between Qx pin and MRAuC pin, MRAuC is actuated (with Qx On) for a short time and check MRG state via MRG_on_SPI bit. If the bit is 0, the alert is logged.
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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