U0124Lost Communication With Lateral Acceleration Sensor Module
- Generic OBD-II code · Network
- How the car detects it
- With U0124 a controller reports that the frames from the lateral acceleration sensor module have stopped. This sensor tells the stability system how strongly the vehicle is being pushed sideways in a bend; together with yaw rate and steering angle it lets ESC detect skidding. In many cars the lateral and yaw sensing sit in one package, so U0123 and U0124 tend to appear as a pair and point to a shared supply or connector fault. Public manufacturer documents for U0124 itself are missing; the description rests on the J2012 title, CARB's network monitoring rules and GM's note that one inertial module carries all these signals (PIT5187A). Bad lateral data is coded U0536. ESC and traction aid go offline, braking stays normal.
- What you may notice
- ESC/traction warning lamp lit
- Stability control deactivated
- Frequently logged together with U0123
- Likely causes
- LikelyCorroded or loose plug at the acceleration sensor module
- PossiblePower or ground of the sensor module interrupted
- PossibleChafed bus wires on the way to the sensor
- RareSensor module internally faulty
- 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.