U046BInvalid Data Received From Global Positioning System Module
- Generic OBD-II code · Network
- How the car detects it
- U046B indicates that position, speed or time data from the global positioning system module fail plausibility in a receiving unit: a corrupt frame, a counter that stalls, or coordinates that cannot match the movement the car measures through its wheel speeds. The receiver feeds navigation, telematics, emergency call and map-based assistance. At Ford the telematics control unit evidently plays this role: according to SSM 54351, Transit vans of model year 2026 that lack a TCU can store the lost-contact twin U016A in a secondary OBD module, with no repair needed. A similar note for U046B does not exist; no manufacturer documents U046B publicly. U0464 covers bad data from the navigation unit, U0198 lost contact with the telematics module. The map position drifts or freezes; driving is unaffected, no MIL.
- What you may notice
- Vehicle position on the map is wrong, jumps or freezes
- Connected services or emergency call show no location
- Clock or time zone set incorrectly
- Likely causes
- LikelyDamaged GPS antenna, cable or connector giving poor or jumping fixes
- PossibleSoftware fault in the GPS or telematics module
- PossibleLow battery voltage or poor ground at the module
- RareInternal fault in the GPS module
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.