Loop-back Plug in Detail

The only numbers I found on the plug were F4SB and 14489-P (Yellow Arrows) though the connector number may be EPC34.  If you can find the plug I'm sure you can make your own loop-back plug.   :)

The red arrows indicate the only 2 metal contacts in the loop-back plug which makes sense since in the DRL wiring diagram you can see that this would provide ground to the Multifunction Switch (Steering Column High/Low/Flash to Pass switch) when the DRL Relay block in not installed.