BMU5 Loss of function parameters
â–¶ How to fix
• Spare part program the BMU(E81) with SDP3
What you'll see
No driver-visible symptom recorded.
System reaction
• Hybrid amber warning is shown in ICL
Diagnostic depth
Detection
File containing EOL parameters is found to be inconsistent or missing at start of ECU. EOL-parameters could not be read from the persistent memory.
Possible cause
System supply voltage (U30) was cut off while the ECU was writing to the file containing the EOL-parameters.