DTC P0453: Fuel Tank Pressure Sensor High Input: Condition

DTC is set when engine is started, engine temperature is below 176°F (80°C) and fuel tank pressure sensor input is more than 4.8 volts (P0453). Possible causes are:

• Fuel tank pressure sensor malfunction.
• Open or short circuit between fuel tank pressure sensor and Powertrain Control Module (PCM).