Quote:
Originally Posted by oilslick
A little while ago I took my Fluke multimeter and tested the plug. There’s 12v on one side constantly, regardless of any setting on the CCU. I’m not sure if that’s how it’s supposed to be (I hate automotive electronics!).
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That is as it should be. The monovalve is controlled by switching the ground side of the circuit, either by the temp control setting (extreme limits only) or by the electronic temp control module.