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Old 16-06-2018, 04:27 PM
Minato Minato is offline
Senior Member
Join Date: Oct 2017
Posts: 128

The command circuit be inside the fan and it seems be locked always on.

Old cars use sometime an external power relay, but i think new cars use power Mosfet transistors. The main trouble is a power fan can be a very inductive load, so can make high surges when it is switch off brutally.
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