U02BCLost Communication With Localization and Mapping Module
- Generic OBD-II code · Network
- How the car detects it
- The localization and mapping module merges satellite positioning, correction data and vehicle motion signals with a detailed map, so that hands-free or automated driving knows its lane and the road ahead; Bosch offers such a GNSS-based unit for driver assistance and automation. U02BC means this module has stopped communicating. Stellantis documents it for the 2024-2026 Jeep Wagoneer and Grand Wagoneer (STAR S2508000095): U02BC-00 appears for the GNMM together with Ethernet time-sync and link-status faults toward the central ADAS module, blind spot alerts and other assistance functions shut off, and modules replaced for it proved healthy. The cause was an Ethernet harness routed too tight, straining its connectors; the fix is correct routing or a new harness, never a repaired cable. No MIL.
- What you may notice
- Blind spot alert unavailable, service message in the cluster
- Hands-free or advanced driver assistance disabled
- Several ADAS and Ethernet codes stored at once
- Likely causes
- LikelyEthernet harness routed too tight, connector strained or not latched
- PossibleBent or damaged Ethernet connector pins
- RareModule supply missing or module internally faulty
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.