U014ELost Communication With Multi-axis Acceleration Sensor Module B
- Generic OBD-II code · Network
- How the car detects it
- U014E concerns a second inertial sensor module, B. Such a unit combines accelerometers and gyroscopes, measures turning rate and acceleration across and along the car, and sends the values over the bus. A second module typically appears where functions need redundant or separately mounted motion data, for instance brake-by-wire, driver assistance or rollover detection alongside the stability system. No manufacturer documents U014E publicly. Module A (U0125) is well documented: GM's 2019 brake controller for the XT4 flags a missing inertial frame after only 0.1 s and rates it Type C without MIL. A gap from module B would hit the functions that depend on it, so stability control, adaptive cruise or lane assistance may shut down with a warning while normal braking stays available. U0123 and U0124 cover single-axis sensor modules.
- What you may notice
- Stability control or traction warning on
- Driver assistance such as adaptive cruise unavailable
- Normal braking unaffected
- Likely causes
- LikelyConnector or wiring of sensor module B corroded or broken
- PossiblePower or ground of module B missing
- RareSensor module B internally faulty
- RareReceiving controller software not matching module B
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.