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      12-18-2012, 04:44 PM   #20
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Drives: e92 335d lci
Join Date: Jul 2008
Location: kent

Posts: 3,664
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Originally Posted by AlwynMike View Post
Took mine off this afternoon for a better look.

The push/pull ones are analogue switched - there are 3 wires to each, a common and an up and a down. Both can be put in parallel. Pretty simple.

The pull/pull ones are digitally switched. They are 2 wire, and are connected together, so there is a circuit with a resistance made all the time. As each paddle is pulled, it brings another resistor into play to give a high signal or low signal. Not so simple. Less plug and play, more plug and no play.

The push/pull ones are from an LCi car.
My car is a late LCi with the pull/pull blades.

Looks like I'm going to have to live with it for a while, until I get my thinking head on and delve into the circuitry inside the switches.

there are threads on the us sites for the wiring and resistors needed
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