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FIXED! decided to pull the Anunciator out and inspect that further, found transitor Q11 closest to the plug on the circuit board that looked burnt. Grabbed one off another truck and replaced it. Charging in neutral and gear now! Now to deal with the leaky hydraulic pump and dry rotted tires...

Sounds good, and yes it is a 2005, MFG date 09/05. Attached the MMDC Sheet for reference to match up with what you have. Again, Thank you for taking the time and helping us with this.

I appreciate the input, but unfortunately i believe this does not apply to this truck. I should have mentioned that the serial number for this truck is ending with 102320 and it has the 4 individual PDP's or (PDM's) as the schematic labels them. they switched from the PDP to the PDM's after S/N...

That's what i had a thought about still.. ill try and dig in to the oil pressure circuit more. The oil pressure switch had been replaced as well, 3 pin connector type. I am assuming the problem will most likely lie between the Alt and the Oil Pressure Switch, not so much in the PDP? It has the...

Currently have an M1078A1 2320-01-447-6343, 2005 model. that is refusing to cooperate. Not charging in neutral, but charges in gear. Ran thru all the schematics and haven't had any luck. so far we have replaced batteries( it has AGM's in it), connections at the batteries and shut off solenoids...