P2251 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1
P2251 is a generic powertrain diagnostic trouble code indicating O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. It relates to the Fuel & Air Metering (injector circuit) system.
DTC Breakdown (SAE J2012)
| System | Powertrain (P) |
| Type | Generic |
| Subsystem | Fuel & Air Metering (injector circuit) |
| Fault Index | 51 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code P2251 mean?
The dtc/">diagnostic trouble code P2251 represents O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
Detailed diagnostic guides and specific fix procedures for code P2251 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about P2251
What does P2251 mean?
The diagnostic trouble code P2251 represents O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
What is the system for P2251?
The P2251 code is located in the vehicle's Powertrain network.