Powertrain
generic / SAE
P214F
Reductant Heater A Current Too High
DEF heater A current draw exceeds the upper threshold — typically a partial short in the heating element.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 4F
Possible causes
- Element partially shorted high
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)
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 80–800 €
- Estimated time: 0.7–3 h
- Component: reductant line heater a
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012