On or around Tue, 5 Jul 2005 20:38:49 +0000 (UTC), Jon
<email@example.com> enlightened us thusly:
>12V gets fed into the temperature gauge and 5V comes out and goes to
>the sender unit.
mostly, the temperature gauge is an ammeter. Basically, the resistance of
the sender changes with temperature, resulting in more or less current
flowing. There are 2 ways of doing it: more current = more deflection is
common, as proved by the thing going to the top of the dial when you earth
the other end.
The sender can get senile in various ways.
interestingly, the somewhat out of date intermotor book I have here doesn't
list the temp sender for the TDi engines. Which is a pity, 'cos if it did,
I could've got the specs for it for you.
Austin Shackles. www.ddol-las.fsnet.co.uk
my opinions are just that
"Quos deus vult perdere, prius dementat" Euripedes, quoted in