DTC P0453 00: Fuel Tank Pressure Sensor High Input: Notes
DTC P0453:00 DETECTION CONDITIONS AND POSSIBLE CAUSES (SKYACTIV-G 2.0, SKYACTIV-G 2.5)
| DTC P0453:00 |
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.
Diagnostic support note
- This is a continuous monitor (CCM).
- The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
Not applicable |
| 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 wiring harness between fuel tank pressure sensor terminal C and PCM terminal 2Y
- Fuel tank pressure sensor power supply circuit and signal circuit are shorted to each other
- Short to power supply in wiring harness between fuel tank pressure sensor terminal A and PCM terminal 2BB
- Open circuit in wiring harness between fuel tank pressure sensor terminal B and PCM terminal 2AJ
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|
CAUTION:
- Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.
RELATED PIDS
| Item (definition) |
Unit/Condition |
Definition |
Condition/Specification (Reference) |
| FTP |
KPa {MPa}, mBar {Bar}, psi, in H20 |
Fuel tank pressure |
- Displays fuel tank pressure
|
| V |
Fuel tank pressure sensor voltage |
- Fuel tank pressure is equal to barometric pressure: Approx. 2.6 V
|