U015ELost Communication With Automated Driving System Interface Module A
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- U015E concerns interface module A, the link that passes commands from an automated driving computer to the base vehicle's brakes, steering and powertrain and reports their state back. Such interfaces belong to the act layer of the sense-think-act chain that Bosch uses to describe automated driving. When its messages stop, the automation computer can no longer command the actuators, so it has to hand control back to the driver or reach a safe stop. No manufacturer documents U015E publicly, and SAE J3016 defines only the automation levels, not the hardware. U015F is interface module B, U015C and U015D are the control modules, U045F flags implausible data from A.
- What you may notice
- Automated driving mode cannot be activated
- Takeover request or controlled stop during automated driving
- Driver assistance warning in the cluster
- Likely causes
- LikelyInterface module A without power or ground
- PossibleBus or Ethernet connection to the interface damaged or strained
- PossibleInterface and automation computer on mismatched software
- RareInterface module A internally faulty
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €3,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.