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P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-321 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR Component Description INFOID:0000000009886732 The EVAP control system pressure sensor (2) detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. On Board Diagnosis Logic INFOID:0000000009886733 NOTE: If DTC P0451 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to . DTC Confirmation Procedure INFOID:0000000009886734 NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- ing the next step. Always perform test at a temperature of 5 °C (41°F) or more. With CONSULT 1 : Drain filter 3 : EVAP canister 4 : EVAP canister vent control value ALBIA0401ZZ PBIB1207E DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0453 EVAP control system pressure An excessively high voltage from the • Harness or connectors (The sensor circuit is open or shorted.) • EVAP control system pressure sensor control valve to drain filter |