OBD-II code · Powertrain (generic, extended)
P215D Reductant Pump B Stuck On
Reductant Pump B Stuck On: the actuator is stuck in the on position.
Is it safe to drive with P215D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPump relay contacts welded
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
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
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Reductant Pump, Reductant Pump Relay
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.