DTC P0443: EVAP Canister Purge Valve Circuit Malfunction Turn the ignition switch ON (II). Clear the DTC with the HDS. Start the engine. Hold the engine speed at 3,000 rpm (min −1 ) without load (in Park or neutral) until the radiator fan comes on, then let it idle. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Is DTC P0443 indicated?
YES | - | Go to Step 5 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the EVAP canister purge valve and the ECM/PCM.■
Turn the ignition switch OFF, and allow the engine to cool below 65 °C (149 °F). Disconnect the vacuum hose (A) from the EVAP canister purge valve (B) and connect a vacuum pump/gauge to the EVAP canister purge valve. Start the engine and let it idle. Is there vacuum?
YES | - | Go to Step 8 .
NO | - | Go to Step 14 .
Turn the ignition switch OFF. Disconnect the EVAP canister purge valve 2P connector. |