This harness allows full control of the Chrysler 46RE engine by the Terminator X-Max ECU.  If you've pulled one of these transmissions from a '96-'03 Ram, Dakota, or Durango V8 truck to complete your HEMI swap, then this gives you everything you need between the Terminator X-Max ECU and the 46RE to complete the wiring.  Since the 46RE still incorporates manual shift from first to second and from second to third, don't throw out that TV cable just yet.  but when coupled with the Terminator X-Max this hareness will let you control the third-fourth shift  as well as torque converter lock-up and the electronically controlled governor pressure circuit.