Quote:
Originally Posted by saumil
The coolant temp sensor (really a switch), in my car has 3 pins. Only one pin connects to the Klima relay, one is ground, and the third one connects to the aux fan relay. If you disconnect all three, the aux fan relay will not work and so your fan would not work on high speed. When the temp is high, then the switches close, so disconnection works to fool the Klima relay BUT disconnection for the aux fan relay actually will break the current path of the relay coil.
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Hi Saumil
What I am calling the coolant temp. sensor/switch (I may have it wrong) is a blue bodied one with two prongs/connections that resides on top of the engine. The first time I pulled it (with the car's electric power "on") the aux. fan started running. The next time I did that, nothing happened. I'm assuming the fuse for the fan is fine because when I jumped the A/C fan switch (down by the refrigerant pressure switch) the fan came right on.
I was beginning to wonder if the aux. fan switch trouble and the A/C clutch trouble are related somehow.
-Brett