P0459 fault code: what it means

P0459: Evap purge control valve circuit reads high (open circuit or short to power).

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

faulty purge control solenoid valve
open or shorted purge valve wiring
poor connector at the valve

P0459 by make

Subaru

Evap purge control valve circuit reads high (open circuit or short to power).

Usual causes: faulty purge control solenoid valve; open or shorted purge valve wiring; poor connector at the valve

What the repair usually costs

A/C compressor replace incl. drier and flush (European)NZ$1,560–NZ$3,200 · A$1,490–A$3,050

Not sure what P0459 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.