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On Sat, 2004-11-27 at 09:49, Dave Hall wrote: > With the 2-prong, the indicator light (in the dash instrument cluster) is live > with ignition, but the earth return is through the bulbs when the flasher unit > grounds. That's why the flash on the dash is in anti-phase with the turn-signal > lamps. > Looking at the wiring diagrams, for the early T-3's the 3rd terminal was ground, (#31). If it was a 2 terminal unit, they show the ground through case of the unit. If it was a 2 terminal unit, they are marked (+) and (S). Power and Switch respectively. The 3 terminal one is marked (+), (S), and (31). -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~