Problem is in the Pump Motor Circuit
Here are some possible causes for this code 47
-Faulty contact or wire breakage of pump motor cable
-faulty pump motor, faulty contact or wire breakage of pump
inverter connector
-faulty contact of DSP flat cable in pump inverter
-wire breakage of main harness
-faulty power supply card of logic unit
-faulty DSP card of pump inverter
-faulty pump inverter, when restarting after motor shorted
i would check all your harness connections at the truck manager card (logics card)
if no problem found there remove the cover on the motor control and check the ribbon cable to the dsp card.
also would check the controller itself at the UVW connections
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