Your on the right track with the Blower Motor Resistor....
How it works is it provides enough current flow to make the blower motor work, but not so much that the motor is damaged.
Your scenario here would almost point towards a bad resistor. Being that you had to replace the motor and wiring going to it multiple times would suggest bad current flow.
I don't believe this is a bad ground issue.
If your resistor had failed in doing its job (limiting the amount of current going to the device) the motor and wiring would had heated up or melted as you already know your connector had done......
I would start by locating your blower motor resistor and taking it out and having it tested for current going in, versus current going out. If no current found than the blower motor resistor had finally fried itself.
I'm not very versed with the newer 2000+ Bonneville'* so you'll have to find someone here that can locate it for you.
Now that you have no power going to the motor or connector, you know the problem is before the two elements.
Do the obvious and check fuses and relays..........
Check the relay to determine if there is power at the fuse. The relay should have two of the four terminals showing power.
With the key on and the fan switch turned on, remove the relay and put it back in, listening for it to click. If it does not click, then replace the relay.
Check the voltage at the electrical connector on the blower motor resistor to see if the fuse and relay are good.
Make sure that power is present at the connector with the key on and the fan switch on. There should be power at two terminals of the blower motor resistor. If only one terminal has power, replace the resistor. If two terminals have power, replace the blower motor itself.
Start with this and get back to us........Thanks.
Last edited by Toddster; 01-13-2010 at 07:30 AM.