Can ANYONE tell me how to check a heater blower motor on a Focus with climate control..
I have the motor out and looking at the connector socket there are 4 connector pins, 2 large, one of these is live and the other large is earth, there are also 2 small pin contacts which don't appear to do anything.
If I connect live lead to the positive terminal and earth to the other large terminal, nothing.!
If I link the two small ones together, nothing. If I connect power to either of the small pins (through a fuse ) nothing. I cannot get the mot or to run on the bench under any circumstance.
I have tried a replacement motor (used) and the results are the same. HELP please.