Hello all

I have a DSS300 2006 vintage that will not turn on, like there is no power on the truck. 36.6 volts at the battery and to the corresponding inputs to the truck management module.
Ohmed out the ED and key switch (checked good), checked all fuses in the module (FU1-6) all good. checked for power from the management module to the key switch and the ED. had power to them earlier in the day, but when I went over the checks I made with another tech to verify my findings a few hours later there was no battery voltage to the corresponding connections from the management module.

Considering the module cost $3000.00 and is special order from Raymond factory, I figured before pulling the trigger on buying a non returnable 3k$ part, i would ask around here what the resident experts thought.

Thanks in advance for any help provided.