P2472 code meaning
Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic (Bank 1 Sensor 4)
Powertrain system Generic code P24xx codes Check engine light
What P2472 means
P2472 reports that the last bank 1 temperature probe (sensor 4) changes its signal too abruptly between two readings, although each reading on its own lies in range. GM documents it as a quick-change monitor with a 100 ms task: the 2017 and 2018 diesel tables look at the resistance step between consecutive samples (more than 10 Ω) and fail after 15 of 30 samples, the 2025 tables use a temperature step above 100 °C with 12 of 25 samples; all are Type B, so the MIL waits for a second trip. Stellantis case S2625000003 names it next to P2470 and P2471 for the 2025 and 2026 heavy-duty Ram pickups. Ford's diesel summaries do not use this number. Corroded pins, loose terminals and fatigued wires near the hot pipe cause most cases. A probe that is steady but wrong is P246F.
P2472 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2472
- MIL on after the second faulty trip
- Temperature value flickers in live data
- Fault comes and goes, often after rough roads
Common causes of P2472
- Most likelyLoose or corroded terminal in the probe connector
- PossibleWire fatigue near the hot exhaust pipe
- Less likelyCracked sensing element giving unstable contact
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Egt sensor b1s4Egt wiring
What each part of P2472 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). |
| 72 | The exact fault in that area. |
What to do next
- Note P2472 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 P2472
What does P2472 mean?
P2472 means "Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic (Bank 1 Sensor 4)". P2472 reports that the last bank 1 temperature probe (sensor 4) changes its signal too abruptly between two readings, although each reading on its own lies in range. It is a generic code, so it means the same on every make.
Is it safe to drive with P2472?
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 P2472 fail an emissions test?
Yes, it can. P2472 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 P2472 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2472 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.