What does code P2058 mean?

Q: What does code P2058 mean?

Reductant Injector Circuit High (Bank 2 Unit 2). P2058 indicates that the powertrain control module (PCM) has detected an abnormally high current or voltage on the reductant injector circuit for bank 2 unit 2, which is part of the selective catalytic reduction (SCR) system on diesel vehicles. The PCM monitors the injector driver circuit and sets this code when the signal exceeds the expected range, typically indicating a short to power, an open circuit, or a faulty injector.

DTC codes / P20xx · Fuel and air metering and auxiliary emission controls / P2058

P2058Reductant Injector Circuit High (Bank 2 Unit 2)

P2058 indicates that the powertrain control module (PCM) has detected an abnormally high current or voltage on the reductant injector circuit for bank 2 unit 2, which is part of the selective catalytic reduction (SCR) system on diesel vehicles. The PCM monitors the injector driver circuit and sets this code when the signal exceeds the expected range, typically indicating a short to power, an open circuit, or a faulty injector.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering and auxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.