OBD-II code · Powertrain (generic, extended)
P2050 Reductant Injection Valve Circuit/Open (Bank 2 Unit 1)
Reductant Injection Valve Circuit/Open (Bank 2 Unit 1): the circuit is open. This valve doses reductant (DEF/AdBlue) into the exhaust for SCR NOx reduction.
Is it safe to drive with P2050?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid winding open
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- Check engine light or NOx warning on
- AdBlue/DEF level or quality warning
- Possible no-start countdown after ignore period
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Reductant Injection Valve
Related codes
- P2047Reductant Injection Valve Circuit/Open (Bank 1 Unit 1)
- P2053Reductant Injection Valve Circuit/Open (Bank 1 Unit 2)
- P2056Reductant Injection Valve Circuit/Open (Bank 2 Unit 2)
- P204DReductant Pressure Sensor Circuit High
- P204EReductant Pressure Sensor Circuit Intermittent/Erratic
- P204FReductant System Performance
- P2051Reductant Injection Valve Circuit Low (Bank 2 Unit 1)
- P2052Reductant Injection Valve Circuit High (Bank 2 Unit 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.