U023ELost Communication With Front Distance Range Sensor - Right
- Generic OBD-II code · Network
- How the car detects it
- U023E is the mirror image for the right front corner: the short range radar on the passenger side of the front bumper no longer delivers its object data. Together with the left unit (U023D) and the centre long range radar (U0235) it gives adaptive cruise and collision assistance a wider view of vehicles merging into the lane. Publicly only GM documents the code, in its 2025 OBD summary 25OBDG04B, where EOCM3 flags U023E after a gap of more than 0.20 s in any of the six right front radar bursts, with the usual exclusions for transport mode, resets and bus-off; adaptive cruise is then switched off and the code is classed Special Type C, so the MIL stays off. If U023D and U023E set together, look at a shared supply or bus. U043C covers invalid data.
- What you may notice
- Adaptive cruise control switched off
- Driver assistance warning on the cluster
- Likely causes
- LikelyRight front corner radar wiring damaged after collision or bumper removal
- PossibleSupply or bus fault shared with the left corner radar
- RareRight front corner radar faulty
- Repair
- Hard · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.