ECU hardware memory failure
â–¶ How to fix
Replace ECU.
What you'll see
When the MBS is restarted the driver will notice it by buttons not working and the ceiling lighting going off.
System reaction
The system performs software reset under some circumstances.
Diagnostic depth
Detection
Fault detected in internal memory of the ECU. The following memory types are checked for faults: • program flash • calibration flash • internal RAM • EEprom emulated in flash • Stack memory
Possible cause
System flaws. Software bugs or hardware failure.