Re: HFS-3 in porsche 997TT
This is good, do you have a pinout for it? May be you got it from the fuse box?
I wonder if it is the relay?
If you use "SYS" to turn on the pump relay (with "FAV" unpluged). Let me know if you can measure a 12V across the pump. If the ground is bad, you will not see a 12V across the pump connector.
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Richard L
aquamist technical support
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