Blower / Regulator S320

[doug richmond]

Anybody good at troubleshotting heater blowers and or regulators? Right out of left field the blower quit and the two little red/blue lights at the center vents went also. Fan runs with 12v jumped to it and runs with power jumped from the regulator but only hi and lo. Control panel lights up and can hear clicks and valves but no fan. Does that system work only with the engine running or can it be tested with just the ign. on acc. position? ( like most others). Thanks for a great forum, Doug 95 S320 (ultimate car)