I had posted this to the bmw coding forum because I think it is a coding issue but no one there was able to help, sorry for the double posting but perhaps someone here has been in this situation of everything working but the gears dont change when the paddles are pulled or pushed.
I fitted the SAT gear lever and steering wheel with paddles from a 2009 535 e60 to a 2010 535 e61
NCS Expert: VO changed to $2TB
WinkKFP: EGS flashed the $2TB firmware
1) Install 1 wire on pin 12 of SZL connector (X1880) and run to ground
2) Install 1 wire on pin 13 of SZL connector (X1880) and run to connector X6031 in ebox to pin 11 (Fat BLUE in the picture)
Click image for larger version.
The display shows s1-s5 when the gear selector is moved left, it clearly stays in a lower gear and never uses 6th, so SAT works just fine yay
Pressing the sport button displays "SPORT" and the steering is stiffer, rev matching etc - yay
Now for the paddles
When I push pull the paddle shifters I get the correct voltages (I believe) on pin 11 of the smaller connector side of the black connector, the one that leads off the the gearbox I presume, yay
"D" – between 3.7 V - 3.8 V
"Upshift" – between 2.4 V - 2.5 V
"Downshift" – between 1.2 V - 1.25 V
BUT, the paddles dont change gear - not yay - what did I miss ?
I think given that I had no errors when running SAT for a few weeks before the paddles were added, that I missed a code somewhere to say there were paddles.
E6x Sports Automatic Transmission Retrofit, Rev 1.0 April 2015