BMW fault codes:30ba DME digital motor electronics, internal failure and/or30bb DME digital motor electronics, internal failure
With DVOM in Diode Test mode. The values of a GOOD MOSFET are as followed.
Gate to Source .7-.8
Gate to Drain 1.2-1.3
Source to Gate 1.2-1.3
Source to Drain .5-.6
All 6 diodes will be replaced And tested to confirm repair. Lifetime Warranty on Diode/MOSFET replacement for the life of the DME. Not responsible for misdiagnosis of failed Diodes/MOSFET.