QUOTE(Spoke @ Jul 1 2022, 11:36 PM)
The diode in question is in series with the GEN light...This diode failed on my 930 and stopped the alternator from starting up. If the diode is shorted or removed, the engine will not shut off since the GEN light powers a couple of critical circuits...
EXACTLY my problem when I Microsquirted my D-Jet 2L. There is no diode on the /4 GEN circuit but the D-Jet system draws enough load that it drops the connection and the car dies; not so with the modern MS system (simply amazing that an entire EFI system can be powered through that small incandescent bulb.) A diode fixed it.
A diode is a diode, as long as it can handle the amps in the desired direction. I installed a solar panel PV diode in the GEN circuit and have many left over if you want me to put one in an envelope for you:
https://www.amazon.com/gp/product/B01CXOQMJ8Then again, at $7 shipped for 20 of them, it might just be better to order a pack for yourself and have them arrive tomorrow...