garajizOBD-II code · generic
P2256
O2 Sensor Negative Current Control Circuit High
- System
- P2 — Powertrain / emissions (generic)
- Severity
- Minor (2/5)
- Can I keep driving?
- Usually safe to drive
What does P2256 mean?
P2256 is defined as “O2 Sensor Negative Current Control Circuit High”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Kia: O2 Sensor Negative Current Control Circuit High Bank 2 Sensor 1
Related codes
- P2255O2 Sensor Negative Current Control Circuit Low
- P2254O2 Sensor Negative Current Control Circuit/Open
- P2253O2 Sensor Negative Current Control Circuit High
- P2252O2 Sensor Negative Current Control Circuit Low
- P2251O2 Sensor Negative Current Control Circuit/Open
- P2250O2 Sensor Reference Voltage Circuit High
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.