P2EA2Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 6
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2EA2 says the signal of the sixth bank 1 exhaust probe sits above its upper electrical limit. Which temperature that implies depends on the element. Most probes form a voltage divider with a pull-up resistor in the module; an open lead then drives the input to the reference, which an NTC part reads as extreme cold and a platinum (PTC) part as extreme heat. Heraeus notes that both platinum resistors and thermocouples are used beyond 900 °C. No maker documents P2EA2; the closest public analogue is GM's probe 5 code P2482 in 25OBDG04A: more than 100 MΩ, or above about 1290 °C on a digital thermocouple, in 19 of 25 samples, Type A with the lamp after one trip. An unplugged connector or broken lead is therefore the prime suspect.
- What you may notice
- Check engine lamp, often after a single trip
- Probe 6 shows an impossible extreme value in live data
- Filter regeneration or SCR dosing restricted
- Likely causes
- LikelyOpen signal or ground lead, or connector not latched
- PossibleProbe element burnt open after overheating or vibration
- RareSignal wire shorted to the 5 V reference or battery voltage
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €550
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.