U0611Lost Communication With Intake Air Temperature Sensor 1 Bank 1
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- Intake air temperature is often no longer a separate NTC wire to the controller but a value inside a digital frame: combined air flow meters send it over LIN or SENT, and pressure chips such as Infineon's KP276 digitize an attached NTC and pass it on in the same SENT message. U0611 concerns sensor 1 of bank 1, typically the upstream sensor in the air filter or air flow path. GM documents it for a two-throttle calibration of 2023/2024, paired with U0613: it sets when the temperature message from the sensor upstream of throttle 1 stops arriving or its line reads as stuck high or stuck low; the MIL comes on after two trips. P0110 to P0114 are the analog circuit codes. Fuel and spark corrections then use a fixed substitute temperature.
- What you may notice
- Check engine light, on GM after two trips
- Usually no noticeable change in driving
- Likely causes
- LikelyWiring fault to the combined sensor that carries the temperature value
- PossibleElectronics of the combined air flow or pressure sensor failed
- PossibleCorroded or loose connector in the intake path
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €30 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.