Ok the heater died a while back. By the way I was running it full time to cool the engine. Engine is rebuilt, rodded raditator, water pump....
So the resistor had one blown coil. Replaced.
The 30amp fuse and the gauge fuse connected to the relay are good.
The motor was removed and tested. No problem.
When the switch is moved to all but the highest setting the relay clicks.
When testing continuity between the pins of the connector the first position is fine. I am confused as to how to test the continuity between the positions ( see table ) where there are several points. should there be continuity between them all, just the first and last. I dont understand.
So the dash is completely removed and now I'm having problems removing the switch. It must come out right?
If anyone has gone through this much testing and can help me out with what to do next I'd appreciate it.
Ok here are the results of testing the points:
Position 1: e and lo good
pos 2: e and lo good. e and m1 good. lo and m1 good
pos 3: e and lo good. e and m2 bad. lo and m2 bad
pos 4: e and lo good. e and hi bad. lo and hi bad.