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Re: Repeat Cummins 5.9 Electric Lift Pump
Posted to HD/Fleet Forum on 1/21/2018

The .5 volts is with the connector unplugged and key off, also we have over layer the harness directly from pin 11 of the ECM to the plug to eliminate shorts in the harness and I’ll also look into disconnecting wiring to see if the .5 volt goes away Login to read more.