P2482Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 5)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- With P2482 the fifth bank 1 exhaust probe delivers a signal above its upper electrical limit. On GM diesels this code also covers the open circuit: the 2018 table sets it above 1400 Ω, both as a short to power with the driver off and as an interruption with the driver on, after 10 of 20 samples, Type B. The 2020 table makes it Type A. In 2025 GM uses more than 100 MΩ, or a digital value hotter than about 1290 °C, after 19 of 25 samples, again Type A with the lamp on after one trip. Ram names P2482 together with P2481 for its 2025–2026 heavy-duty diesel pick-ups. A loose plug or broken lead is therefore as likely as a failed probe. Compare with P2481 for the short to ground.
- What you may notice
- Warning lamp, on GM from 2020 after a single trip
- Probe 5 shows a fixed extreme value
- Regeneration suppressed
- Likely causes
- LikelyLoose, corroded or unplugged connector
- PossibleBroken lead from heat or vibration
- PossibleProbe element open or high-resistance
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €40 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.