P0452

P0452 - Evaporative Emission Control System Pressure Sensor Low Input

Diagnostic fault codes never say to replace parts or that one is bad. They only indicate the circuit or system that needs further diagnosis or the unacceptable operating condition. Reading the codes is just the first step in diagnosing the cause of that code. The most common cause for this type of code is an open circuit, meaning a break in the circuit. Start with a visual inspection of the wires, then look for corroded or stretched connector terminals. The sensor itself should be the last suspect after everything else is ruled out.