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) (6 OF 6)DTC/CIRCUIT DIAGNOSISDTC P2252: A/F SENSOR 1DTC DESCRIPTION
2024 Nissan-Datsun Frontier SL, RWD
DTC Description
2024 Nissan-Datsun Frontier SL, RWDSECTION DTC Description
To judge malfunctions, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control.
DTC DETECTION LOGIC
| DTC | CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | ||
| P2252-00 | A/F SENSOR 1 (B1) (O2 sensor negative current control circuit low bank 1 sensor 1) | A | Diagnosis condition | - |
| Signal (terminal) | A/F sensor 1 (bank 1) signal | |||
| Threshold | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly in a range other than approx. 2.2 V | |||
| Diagnosis delay time | - | |||
| B | Diagnosis condition | - | ||
| Signal (terminal) | A/F sensor 1 (bank 1) signal | |||
| Threshold | The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2 V | |||
| Diagnosis delay time | - | |||
POSSIBLE CAUSE
- Harness or connectors [The A/F sensor 1 (bank 1) circuit is open or shorted.]
- A/F sensor 1 (bank 1)
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.