2003 E85 3.0i Auto.
I am installing flappy paddles. I have got the steering wheel with flappy paddles, a slip ring with the right connections and all the wiring. The wiring should be really simple. The flappy paddles just provide a “ground” when activated, which mimics what the sequential +/- lever does. I have spliced two wires into the gearchange and if I ground these wires in “sport manual” mode they change the gear indicator up and down - so far so good - but the flappy paddles do not work.
I need to test whether:
(A) the flappy paddles are providing a “ground”; and
(B) the slip ring is carrying the “ground” signal to the wires spliced into the gearchange.
I have a multimeter. How do I test both of the above?
Photo of all the steering wheel wiring for reference.

I am installing flappy paddles. I have got the steering wheel with flappy paddles, a slip ring with the right connections and all the wiring. The wiring should be really simple. The flappy paddles just provide a “ground” when activated, which mimics what the sequential +/- lever does. I have spliced two wires into the gearchange and if I ground these wires in “sport manual” mode they change the gear indicator up and down - so far so good - but the flappy paddles do not work.
I need to test whether:
(A) the flappy paddles are providing a “ground”; and
(B) the slip ring is carrying the “ground” signal to the wires spliced into the gearchange.
I have a multimeter. How do I test both of the above?
Photo of all the steering wheel wiring for reference.
