P2485
Exhaust Gas Temperature Sensor Circuit Open Bank 2 Sensor 5
A general circuit fault is detected on the EGT sensor at bank 2 sensor 5 (typically just downstream of the turbo or before the catalyst). The ECU loses thermal protection feedback for the catalyst and DPF.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Open in sensor or wiringCommon
- Pin pushed back out of connector bodyLess likely
- Cracked solder joint inside the module or sensorLess likely
Parts involved
- Egt Sensor B2s5
P2485 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.