Honda car fault codes and warning indicators, with meanings, causes, and step-by-step fixes.
18 models · 3 error codes
On Honda vehicles, P1259 means a fault in the Honda VTEC variable valve timing/lift system on bank 1 — VTEC isn't engaging correctly.
On Honda vehicles, P1399 means a random/multiple-cylinder misfire detected by the Honda ECM — combustion is failing across cylinders.
On Honda vehicles, P1457 means an evaporative emissions (EVAP) leak detected on the charcoal-canister side of the system.
These codes apply across Honda models, including:
