Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2024FRONTIER SL, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM (DTC/CIRCUIT DIAGNOSIS) (4 OF 6)DTC/CIRCUIT DIAGNOSISDTC P0451: EVAP CONTROL SYSTEM PRESSURE SENSORDTC DESCRIPTION
2024 Nissan-Datsun Frontier SL, RWD
DTC Description
2024 Nissan-Datsun Frontier SL, RWDSECTION DTC Description
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | |
| P0451-00 | Barometric pressure sensor A/B (EVAP System Pressure Sensor/Switch "A" Circuit Range/Performance) | Diagnosis condition | - |
| Signal (terminal) | - | ||
| 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 barometric pressure sensor are equal. | ||
| Diagnosis delay time | - | ||
POSSIBLE CAUSE
- Harness or connectors (EVAP control system pressure sensor circuit is shorted).
- EVAP control system pressure sensor
- ECM (built in barometric pressure sensor)
FAIL-SAFE
Not applicable
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.