Powertrain
generic / SAE
P2002
Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
Diesel Particulate Filter Efficiency Below Threshold (Bank 1): the control module has detected this fault condition.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number– / 02
Possible causes
- DPF heavily loaded — repeated short trips prevent regeneration high
- Filter substrate cracked or melted from runaway regeneration medium
- Differential pressure sensor drift medium
- Leak around DPF housing low
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–4000 €
- Estimated time: 2–8 h
- Component: diesel particulate filter
- Component: dpf differential pressure sensor
- Component: dpf temperature sensor
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012