Possible causes

– Faulty Evaporative Emission (EVAP) Purge Solenoid Control
– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

When is the code detected?

The Engine Control Module (ECM) has detected a high voltage on the canister purge solenoid with the driver commanded on

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0459 Description

The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the Engine Control Module (ECM). The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

P0459 Information for specific makes

P0459 SUBARU
P0459 AUDI
P0459 BMW
P0459 HYUNDAI
P0459 KIA
P0459 VOLKSWAGEN
P0459 BUICK
P0459 CHEVROLET
P0459 CADILLAC
P0459 GMC
P0459 PONTIAC
P0459 SATURN