Credov

P3006 fault code: what it means

P3006: Hybrid battery state of charge uneven between blocks (early Prius battery ECU code). Highest-to-lowest block voltage gap is too big.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. weak hybrid battery modules
  2. pack ageing
  3. sense-wire or bus bar corrosion

P3006 by make

Toyota

Hybrid battery state of charge uneven between blocks (early Prius battery ECU code). Highest-to-lowest block voltage gap is too big.

Usual causes: weak hybrid battery modules; pack ageing; sense-wire or bus bar corrosion

What the repair usually costs

Not sure what P3006 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.