OBD-II code · Powertrain (generic)

P0A8D 14 Volt Power Module System Voltage Low

The 14V DC/DC converter module reports a "system voltage low" condition. 12V vehicle electrical supply may be impaired.

Is it safe to drive with P0A8D?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelyLoad exceeds module capacity
  • PossibleOutput regulator low

Repair at a glance

Difficulty
Hard
DIY friendly
Best left to a mechanic
Typical labour
2–8 h
Emissions test
Usually unaffected
Parts involved
Pm14v Module, Dcdc Converter

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.