Re: Pickup wired in parallel?
It's always possible Dimarzio miswires the cable. But I'd check to make sure it's not operating in single coil mode, like if the black and white wires are accidentally touching ground or hot somewhere near that joint. Then take a reading (if you have a meter) at the output jack. Put the switch in the bridge position and open up the controls. Take a resistance reading from hot to ground. If its near full TZ specs, then it could be parallel, but that'd be due to a Dimarzio screw up on the wiring colors, because the diagram is fine. If it's drastically less than TZ specs, then check the reading from red to black/white junction, and from black/white junction to ground. That would tell you if anything was shorted out, either at your solder joints or inside the cable itself.