P24E2
NH3 Sensor Circuit Range or Performance
Same as P24E1 with the signal in plausible range yet not matching the engine model.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Sensor element driftedCommon
Parts involved
- Nh3 Sensor
P24E2 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.