DTC P0453: EVAP System Pressure Sensor Malfunction

NOTE: Limited information available from manufacturer.

NOTE: After each repair, clear DTCs. See CLEARING CODES/PCM RESET PROCEDURE under SELF-DIAGNOSTIC SYSTEM. Turn ignition off and then on. Read DTCs to verify repair is complete. For DLC and PCM connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAMS .

Possible causes:

PCM to fuel tank pressure sensor open circuit, short circuit to 5 volt supply or battery voltage.
Fuel tank pressure sensor failure.