?️ No GPS Signal in HU – BMW X3 xDrive30e (ID5_1911 / likely iDrive6)

[Tappam]

Hi everyone,

I’m having a persistent navigation issue with my BMW X3 xDrive30e Advantage, and I’m hoping someone here might have experience or suggestions.

? The Issue:

My head unit (HU) does not receive a GPS signal, even though the TCB is working perfectly and reports a 3D GPS fix.

? System Info:

HMI version via ISTA: ID5_1911

HU has a touchscreen, tile layout, and Apple CarPlay, which points to iDrive6 (HU_B)

Ethernet connection to the HU is fully functional with 91% quality

HU is supposed to receive GPS via Ethernet from the TCB


? What’s been tried so far:

Performed a hardware reset of the HU

Deleted and reinstalled navigation map data

Reset navigation calibration using Tool32

Working with Tool32 + NBTEVO.prg


> Important Detail:
When I execute the jobs gps_position or gps_datum on the HU using Tool32 with NBTEVO.prg, the job returns an error.



Open Questions:

1. Is this job error when reading GPS data a known issue?


2. How can I re-run the navigation calibration with Tool32?
→ If anyone knows which job inside NBTEVO.prg does this, that would be a huge help.


3. Is there a way to directly test the TCB HU GPS communication?


4. Could it be a coding or mapping error preventing GPS data from reaching the HU?



Any input, tool suggestions, or experiences would be greatly appreciated. ?

Best regards