Powertrain
generic / SAE
P2062
Reductant/Regeneration Supply Control Circuit/Open
The control line that energises the DEF supply pump or regeneration heating circuit is open — no continuity through the load or harness.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 62
Possible causes
- Open winding high
- Open wire medium
- Pin pushed back out of connector body low
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: 120–800 €
- Estimated time: 0.8–3 h
- Component: reductant supply pump
- Component: reductant supply relay
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012