DTC P0452:00 [Pcm (SKYACTIV-G)]: Outline

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DTC P0452:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Fuel tank pressure sensor low input
Detection condition	The PCM monitors the EVAP control system fuel tank pressure sensor input signal to the PCM. The test fails when the signal average drops below a minimum allowable calibrated parameter.
Fail-safe	Not applicable
Possible cause	Fuel tank pressure sensor connector or terminals malfunction PCM connector or terminals malfunction Short to ground in any of the following fuel tank pressure sensor circuits. Power supply circuit Signal circuit Short circuit in fuel tank pressure sensor signal circuit and ground circuit Open circuit in any of the following fuel tank pressure sensor circuits. Power supply circuit Signal circuit Fuel tank pressure sensor malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.