U015DLost Communication With Automated Driving System Control Module B
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- U015D names automated driving system control module B. Where the driving assistance computer is split into two halves, each half and the navigation and motion module watch the other over Ethernet. Stellantis case S2508000095 for the 2026 Jeep Wagoneer lists U015D-00 in the CADM and in the GNMM, together with Ethernet link and time-sync faults. Replaced modules showed no defect; the cause was harness routing that pulled on the Ethernet plugs and loosened pins. The fix is to inspect and replace the harness, which must not be spliced, and to correct the position of clip C121. The driver sees blind-spot warnings, mirror lamps staying lit and disabled ADAS. U015C is module A, U045E implausible data from B.
- What you may notice
- Blindspot Alert Unavailable message
- Blind-spot lamps in the mirrors stay lit
- Driver assistance features disabled intermittently
- Likely causes
- LikelyEthernet harness too taut, pins pushed out or fretted (Stellantis S2508000095)
- PossibleHarness clip in wrong position, connectors under strain
- RareADS control module B without power or ground
- RareADS control module B internally faulty
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.