P2482 code meaning
Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 5)
Powertrain system Generic code P24xx codes Check engine light
What P2482 means
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.
P2482 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2482
- Warning lamp, on GM from 2020 after a single trip
- Probe 5 shows a fixed extreme value
- Regeneration suppressed
Common causes of P2482
- Most likelyLoose, corroded or unplugged connector
- PossibleBroken lead from heat or vibration
- PossibleProbe element open or high-resistance
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Egt sensor b1s5
What each part of P2482 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 82 | The exact fault in that area. |
What to do next
- Note P2482 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2482
What does P2482 mean?
P2482 means "Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 5)". With P2482 the fifth bank 1 exhaust probe delivers a signal above its upper electrical limit. It is a generic code, so it means the same on every make.
Is it safe to drive with P2482?
Drive gently and only to a workshop. With P2482 the car can go into limp mode (reduced power) to protect itself.
Will P2482 fail an emissions test?
Yes, it can. P2482 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2482 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2482 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.