Help! No electrical power (89 ranger)

[chollyred]

I have no power to the truck. Last week, I knew the alternator was going bad, so I replaced that last week. The the battery died. Wouldn't hold a charge. So I've replaced that. I replaced the positive battery cable (negative appears okay), and the starter relay. No blown fuses in the distribution box.

Still no power to the truck. No interior lights, nothing. Not sure what to try next. I'm at a loss. Any suggestions?

Cholly

 

[xr75er]

check the neg wire [size 12 gage.] that comes from the terminal to the wire harness. It'a the ground to the pcm.(computer) The truck won't start if this is not connected. Did all your wires for the relay all go back on the same termail? They should all be on the same one as the battery lead. Hope this help's.

 

[chollyred]

Yeah. Did that. The original starter relay only had three terminals where the new one has four. Per the instructions that came with it, there is one that won't be used. Just to make sure, I even put the old one back in and still no power. I checked the fuses in the distribution box and they were all ok.

Still stumped.