DTC P0452: Fuel Tank Pressure Sensor Input Low: Condition

When engine is running and engine coolant temperature is less than 176°F, PCM monitors input voltage at terminal No. 62. If voltage is less than .2 volt, DTC is set. Causes may include the following:

• Faulty fuel tank pressure (FTP) sensor.
• Open in Pink/Blue wire between (FTP) sensor harness connector terminal "C" and PCM harness connector terminal No. 90.
• Short to ground in wiring between FTP sensor harness connector terminal "A" (Red wire) and PCM harness connector terminal No. 62 (Red/Black wire).
• Faulty connector or terminal.
• PCM malfunction.