P2382
EGR Sensor D Circuit Low
Same as P2381 but with the signal voltage below the plausible lower limit - typically the signal line shorted to ground or an internal sensor short.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Common causes
Ordered by how often each turns out to be the cause.
- Signal line shorted to groundCommon
- Sensor internal shortPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- EGR Sensor D
- EGR Sensor Wiring D
P2382 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.