U0464Invalid Data Received From Navigation Control Module
- Generic OBD-II code · Network
- How the car detects it
- U0464 is stored when a module still hears the navigation control module but rejects its content: a frame whose checksum fails, a message counter that no longer advances, or position, heading and route values outside their defined range. Typical listeners are the instrument cluster or head-up display, which repeat turn arrows, and on some cars predictive cruise or shift logic that reads the map ahead. No manufacturer documents U0464 in an openly accessible source. The protection behind such checks, a CRC and a sequence counter per message, is laid down in the AUTOSAR end-to-end protocol. U0163 means the unit has gone silent, U0463 concerns the separate navigation display and U046B the GPS receiver. The consequences stay in guidance and comfort: missing arrows or a wrong map position, no MIL.
- What you may notice
- Turn arrows missing in the cluster or head-up display
- Vehicle position on the map jumps or is wrong
- Route guidance stops or restarts unexpectedly
- Likely causes
- LikelyNavigation unit software or map update fault sending implausible values
- PossibleLoose connector or damaged bus wiring at the navigation unit or head unit
- PossibleWeak 12 V battery or voltage dips during start-up corrupting frames
- RareInternal fault in the navigation control module
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.