04-18-2026, 11:04 AM
I’m troubleshooting a KAFAS camera issue on a BMW E-series (E70 platform) using ISTA+ and INPA.
The original problem was multiple KAFAS-related faults in ISTA, including no communication with headunit, lane departure warning, and all-round view camera, along with a general KAFAS malfunction.
I first tested the original camera module. In ISTA it showed an internal hardware fault and calibration failed. In INPA the module responds normally and all voltages (1.8V, 3.3V, 5V, vehicle voltage) are within range, so power supply and wiring appear OK. However, the VIN from the camera shows as “yyyyyyyy” and VIN status says no access, which is not normal.
Based on that, I replaced the camera with a used unit (Continental KAFAS, similar part number). After installation, the replacement module behaves almost exactly the same. It communicates fine, shows proper hardware/software information, and all voltages and current are normal. But again in INPA the VIN camera shows as “yyyyyyyy” and VIN status says no access.
I then attempted calibration in ISTA with both the original and the replacement module. In both cases calibration fails with the same message (camera dirty/covered, no movement in front of camera, or camera defective). There is no difference in behavior between the two units.
So currently:
This suggests the issue is not wiring or vehicle-side, but related to the camera modules themselves. Either both modules are defective, not properly initialized, or have corrupted internal data (EEPROM/flash). Another possibility is compatibility or coding, but I would expect the VIN to be readable if the module was healthy.
Main question:
Is it normal on E-series KAFAS for the camera VIN to show as “yyyyyyyy” in INPA if it is uncoded, or does this indicate a defective or corrupted camera module?
The original problem was multiple KAFAS-related faults in ISTA, including no communication with headunit, lane departure warning, and all-round view camera, along with a general KAFAS malfunction.
I first tested the original camera module. In ISTA it showed an internal hardware fault and calibration failed. In INPA the module responds normally and all voltages (1.8V, 3.3V, 5V, vehicle voltage) are within range, so power supply and wiring appear OK. However, the VIN from the camera shows as “yyyyyyyy” and VIN status says no access, which is not normal.
Based on that, I replaced the camera with a used unit (Continental KAFAS, similar part number). After installation, the replacement module behaves almost exactly the same. It communicates fine, shows proper hardware/software information, and all voltages and current are normal. But again in INPA the VIN camera shows as “yyyyyyyy” and VIN status says no access.
I then attempted calibration in ISTA with both the original and the replacement module. In both cases calibration fails with the same message (camera dirty/covered, no movement in front of camera, or camera defective). There is no difference in behavior between the two units.
So currently:
- Power supply to KAFAS is OK
- Communication with the module is OK
- Calibration fails on both units
- Both show invalid VIN (“yyyyyyyy”) in INPA
This suggests the issue is not wiring or vehicle-side, but related to the camera modules themselves. Either both modules are defective, not properly initialized, or have corrupted internal data (EEPROM/flash). Another possibility is compatibility or coding, but I would expect the VIN to be readable if the module was healthy.
Main question:
Is it normal on E-series KAFAS for the camera VIN to show as “yyyyyyyy” in INPA if it is uncoded, or does this indicate a defective or corrupted camera module?
![[-]](https://www.bimmerscene.com/images/collapse.png)