The battery is brand new, it was installed after the machine went down, so the problem was already there with the original battery. I've traced the problem down to the circuit board under the dash, it's receiving the right voltage signals from the truck but it's not supplying power to the BDI charge level LED bars. I'm now on the hunt for a circuit board. The BDI could be blown but I want to replace the board first and see if the BDI works.
Thanks for the suggestion.
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