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Voltage Auto Service specializes in advanced hybrid, plug-in hybrid and EV diagnostics. Schedule an appointment to have the fault properly tested before replacing parts.

2019 Toyota Prius AWD-e LE – Will Not Drive With P300000

  • Aug 17
  • 1 min read

CUSTOMER CONCERN

A 12-volt battery warning appears, the vehicle will not drive, and DTC P300000 is stored for hybrid battery discharge control.

CAUSE

The confirmed repair identified a failed 12-volt auxiliary battery.

CORRECTION

Remove and replace the failed 12-volt auxiliary battery, clear DTC P300000, and verify the vehicle enters Ready mode and drives normally.

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