DTC Detection Logic
| DTC No. | CONSULT screen terms | DTC detecting condition | ||
|---|---|---|---|---|
| DTC (Trouble diagnosis content) |
Malfunction type | |||
| P2251 | 00 | O2 SENSOR B1 SEN 1 (O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1) |
NO SUBTYPE INFORMATION | The signal return line connection of A/F sensor (cylinder bank 1) has an electrical malfunction or open circuit. |