DTC P0450: EVAP System Pressure Sensor Malfunction: Condition

DTC is set when fuel tank pressure sensor input voltage to PCM is less than .2 volt or greater than 4.8 volts with ignition switch on and engine at normal operating temperature. Possible causes are:

• Fuel tank pressure sensor malfunction.
• Open or short of Light Green/Red wire between terminal "C" on fuel tank pressure sensor and terminal No. 3A on Powertrain Control Module (PCM). See Figure and Figure .
• Open or short of Light Green/Red wire between terminal "A" on fuel tank pressure sensor and terminal No. 3F on Powertrain Control Module (PCM). See Figure and Figure .
• Open of Black/Yellow wire between terminal "B" on fuel tank pressure sensor and terminal No. 3AB on Powertrain Control Module (PCM). See Figure and Figure .