DTC P0452-00: Fuel Tank Pressure Sensor Low Input: Notes
WARNING: This page is about a different variant/trim than selected.
DTC P0452:00 (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P0452:00 |
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.
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/Snapshot data is available.
- DTC is stored in the PCM memory.
|
| FAIL-SAFE FUNCTION |
|
| POSSIBLE CAUSE |
- Fuel tank pressure sensor connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to ground in wiring harness between the following terminals:
- Fuel tank pressure sensor terminal A-PCM terminal 2Y
- Fuel tank pressure sensor terminal C-PCM terminal 2M
- Fuel tank pressure sensor signal circuit and ground circuit are shorted to each other
- Open circuit in wiring harness between the following terminals:
- Fuel tank pressure sensor terminal A-PCM terminal 2Y
- Fuel tank pressure sensor terminal C-PCM terminal 2M
- Fuel tank pressure sensor malfunction
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
|