P2058Reductant Injection Valve Circuit High (Bank 2 Unit 2)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2058 indicates that the second DEF injector on Bank 2 sees battery voltage on its switched line. Like the other Bank 2, unit 2 codes it is reserved for twin-bank engines with two dosing points per bank, and no manufacturer documents it publicly. The Bank 1 counterpart P2055 appears in GM's 2025 diesel table as a power short of metering valve 2 (Type A after 30 of 60 samples), while Ford's 2023 summary uses that number for a coil resistance more than 2 ohm too high, a reminder that meanings can shift between makers. CARB's comprehensive-component rules require such circuit checks. Moisture in the plug, a short to a neighbouring supply wire or a failed output stage are the usual suspects; dosing at that point stops.
- What you may notice
- MIL on
- No dosing at the Bank 2 second valve
- Likely causes
- LikelyMoisture in the injector plug
- PossibleShort to a neighbouring supply wire
- RareFailed output stage in the control module
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.