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P1AC0 fault code: what it means

P1AC0: BYD: airbag control unit collision alarm reported to the powertrain. Usually stored after an impact or airbag event; check for accident damage.

Engine and gearbox (powertrain) · Safety risk

Usual causes, most likely first

  1. crash or heavy impact recorded
  2. airbag module signal fault

P1AC0 by make

BYD

BYD: airbag control unit collision alarm reported to the powertrain. Usually stored after an impact or airbag event; check for accident damage.

Usual causes: crash or heavy impact recorded; airbag module signal fault

Not sure what P1AC0 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.