DTC P0443: Evaporative (EVAP) Control System Purge Flow Incorrect

Check canister purge system following procedures in DTC P0440 & DTC P0455 , beginning with step 1). If canister purge system does not operate properly, go to next step. If canister purge system is okay, check EVAP canister following step 24 in DTC P0440 & DTC P0455. Repair as necessary. If EVAP canister is okay, replace PCM. Retest system.
Check EVAP canister purge valve, vacuum hoses and circuit following procedures in DTC P0440 & DTC P0455, beginning with step 10 . Repair as necessary. If purge system is okay, replace PCM. Retest system.