MyTeslaMate
DPP2 family

DPP2_a004_inputVoltageLow

Not Available

What does the DPP2_a004_inputVoltageLow alert mean?

Dual Power Pump (DPP) assist halted due to supply undervoltage.

What you'll see in your Tesla

  • Not Available

What triggers it

DPP drive Stage Voltage < 20V

When it clears

Drive stage voltage > 21V for >500ms

Potential impact

Steering assist unavailable

Affected models

Semitruck

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.