Quote:
Originally Posted by ykobayashi
I’m not familiar with the diode on the plugs. Are these devices to keep the inductive spike from destroying the relay? Looking at your board both relays are protected by flyback diodes on the board.
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Yes, that is correct. Every old chevy I've come across has a diode in the plug for the purpose of protecting everything up stream. I think VDO just stuck the diode inside the Klima box.