P2483 code meaning
Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 5)
Powertrain system Generic code P24xx codes Check engine light
What P2483 means
P2483 is the plausibility test for the fifth bank 1 exhaust probe: the circuit is electrically fine, but the reading does not behave like a real exhaust temperature. GM's 2025 diesel tables describe the check in detail. After the engine has been off for more than 10,800 s (three hours), the value frozen at key-on serves as reference; if the probe then fails to rise by the amount a calibrated map expects while the engine runs, the ECM concludes it is stuck or no longer in the gas stream. It is a Type B fault and waits until the electrical codes P2481, P2482 and P2484 are clear. Hino also issued workshop-manual corrections for P2483 on its 2018–2019 J08E trucks. A probe pulled out of its boss after work on the exhaust is a classic cause.
P2483 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P2483
- Warning lamp after two trips
- Probe 5 barely changes while the other probes heat up
Common causes of P2483
- Most likelyProbe not fully seated in its boss after exhaust work
- PossibleProbe output stuck or responding too slowly
- Less likelyHeavily sooted probe tip insulating the element
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 P2483 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). |
| 83 | The exact fault in that area. |
What to do next
- Note P2483 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 P2483
What does P2483 mean?
P2483 means "Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 5)". P2483 is the plausibility test for the fifth bank 1 exhaust probe: the circuit is electrically fine, but the reading does not behave like a real exhaust temperature. It is a generic code, so it means the same on every make.
Is it safe to drive with P2483?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2483 fail an emissions test?
Yes, it can. P2483 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 P2483 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 P2483 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.