OBD-II code · Powertrain (generic, extended)
P22C2 O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 2)
The pumping current trim line on bank 2 sensor 2 is open. The trim is the per-sensor calibration code that adjusts pumping current to compensate for production tolerances.
Is it safe to drive with P22C2?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen trim line
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Oxygen Sensor
Related codes
- P22B5O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 2)
- P22BFO2 Sensor Negative Current Control Circuit/Open (Bank 2 Sensor 2)
- P22C0O2 Sensor Negative Current Control Circuit Low (Bank 2 Sensor 2)
- P22C1O2 Sensor Negative Current Control Circuit High (Bank 2 Sensor 2)
- P22C3O2 Sensor Pumping Current Trim Circuit Low (Bank 2 Sensor 2)
- P22C4O2 Sensor Pumping Current Trim Circuit High (Bank 2 Sensor 2)
- P22C5Turbocharger Compressor Outlet Valve Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.