P2253 code meaning
O2 Sensor Negative Current Control Circuit High (Bank 1 Sensor 1)
Powertrain system Generic code P22xx codes Check engine light
What P2253 means
P2253 reports that the negative current control side of the bank 1 upstream air-fuel sensor reads too high. On the Honda-built 3.5 V6 of the 2004-05 Saturn Vue (L66), GM's tables treat it as an open sensor-cell circuit: with the heater operating and the element signal above 4.6 V, a sensor-cell voltage over 6.0 V for 5 s sets it, and P2256 does the same on bank 2. A short to the heater or battery feed can drive the signal high in the same way. Mitsubishi lists P2253 as a two-trip code for the 2022 Outlander, and GM's 2018 Duramax table 18OBDG04 names it as a front sensor fault without giving limits. Ford logs high-side shorts on wide-band wires as P0132 instead. P2251 is the open ground line in Ford terms, P2252 the low fault.
P2253 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P2253
- Check engine light
- Higher fuel consumption from open-loop fuelling on bank 1
- Repeat failure of a new sensor if a wiring short remains
Common causes of P2253
- Most likelyOpen sensor-cell wire or connector contact, letting the signal float high
- PossibleWire shorted to heater supply or battery voltage
- PossibleInternal defect in the air-fuel sensor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Oxygen sensor bank1 sensor1Oxygen sensor wiringECM
What each part of P2253 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| 53 | The exact fault in that area. |
What to do next
- Note P2253 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2253
What does P2253 mean?
P2253 means "O2 Sensor Negative Current Control Circuit High (Bank 1 Sensor 1)". P2253 reports that the negative current control side of the bank 1 upstream air-fuel sensor reads too high. It is a generic code, so it means the same on every make.
Is it safe to drive with P2253?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2253 fail an emissions test?
Yes, it can. P2253 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2253 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2253 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.