DTC P0443: EVAP Control System Purge Control Valve, Circuit Malfunction: Condition

DTC is set when PCM detects input voltage from purge solenoid valve stays to low or to high. This is a diagnostic support DTC, monitored once per ignition key cycle. MIL is not illuminated when PCM detects malfunction. Possible causes are:

• Open circuit between main relay and purge solenoid valve.
• Open or short circuit between purge solenoid valve and PCM.
• PCM malfunction.
• Purge solenoid valve malfunction.