Thanks for advice, i was thinking of getting the dash control unit of manny but i guess u beat me to it. This is what i know (if it helps you)
1. Heater tap on mine is dead
2. There is current going to my switch (next to tap)
3. Switch is broken as makes no difference sending it current or refusing it current
If u bypassed the tap in the engine bay, does that mean that there is a second tap controlling the flow of coolant?