> << if the resistance values are the > same(ie. the dash gauge is also a 150C gauge like the VDO aftermarket > ones) then what would stop an enterprising Vanagon owner from tapping > off that signal as opposed to adding a separate sending unit in the > coolant line somewhere? >> > > Impedance. Wha? How does alternating current come into a 12V DC system? The temp circuit is a thermistor and a gauge on a 12VDC loop. |
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