DTC P0453-00: Fuel Tank Pressure Sensor High Input: Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0453:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Fuel tank pressure sensor high 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 jumps above a maximum allowable calibrated parameter.
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| Fail-safe |
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| Possible cause |
- Fuel tank pressure sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Fuel tank pressure sensor malfunction
- Short to power supply in fuel tank pressure sensor signal circuit
- Short circuit in fuel tank pressure sensor power supply circuit and signal circuit
- Short to power supply in fuel tank pressure sensor power supply circuit
- Open circuit in fuel tank pressure sensor ground circuit
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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