BMU default or faulty parameterized
▶ How to fix
If in production do an End-Of-Line programming of the BMU (E81). If in a workshop do a proper spare part programming with SDP3.
What you'll see
No driver-visible symptom recorded.
System reaction
Default parameters: • VOR, the hybrid system will not work since the battery will not be engaged. The DCC will not receive VCB-power and the 24-volt system will drain the 24-volt batteries. • Amber warning lamp "24V batteries not charged" and "Hybrid System Fault" is shown in ICL Faulty parameters: • Charging won’t start • Amber warning lamp is shown in ICL
Diagnostic depth
Detection
One or more of the BMU (E81) parameters has a default or faulty value.
Possible cause
One or more of the BMU (E81) parameters has a default or faulty value.