DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | |
| P0451 | Barometric pressure sensor A/B (EVAP System Pressure Sensor/Switch "A" Circuit Range/Performance |
Diagnosis condition | - |
| Signal (terminal) |
|
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| Threshold | ECM detects a state that the pressure difference remains the threshold value or more for continuously for 5 seconds or more under the condition that the pressure of the EVAP control system pressure sensor and that of the MAP sensor are equal. | ||
| Diagnosis delay time | - | ||
POSSIBLE CAUSE
- EVAP control system pressure sensor
- MAP sensor
- Clogging, crushing, or damage in hose or piping.
FAIL-SAFE
Not applicable