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We just replaced the 4.0ltr engine in our 2005 Ranger with a 4.0ltr from a 03 or 04 Automatic. Had to swap wiring harnesses on the engine and now don't have 4wd or backup light. The truck has electronic shift and nothing happens when you turn the switch to any of the settings(4 high or 4 low) including no light on the dash. I can't find any power to the plugs and have checked all the fuses. Any ideas?