92 Accord, Right Hand Drive
During investigating the shooting temp needle and which comes back to original state by tapping dash I discovered completely melted wire.

I tried to open the connector and replace the whole wire. After spending two hours connector refused to open. so i planed to see on the other side of connector if wire was melted else i join here. Yes it was melted too. Now i need to trace back to its origin. Unfortunately I do not know what was the purpose of the melted wire. The connector is shown in following figure. Pin no 13 color White/Red or Grey/Red its melted cant know exact. Big Brown connector is what i am talking about

Any help in identification would be of great help

 

That should be for dashboard components.

 

Any pinout diagram and are they available ?