Thread: D4 steering wheel gearshift switches

It was time to revisit my setup to limit the time the up-shift or down-shift was activated. Sometimes I held the up-shift button for a longer time than the gearbox ecu expects the gear-lever electronics to activate the up-shift or down-shift facility, which results in a gearbox fault that requires the ignition to be cycled to clear. I've also wanted to add a sport/manual button so that command-shift can be cancelled without having to move the lever to the sport mode position then back.

I invested $14 to have some pcbs produced (min qty 10 - I only need 1!), fitted about $10 in components and now with the up-shift and down-shift set to 200 ms duration, faults no longer occur regardless of the time a button is pressed. No further change requests will be accepted until 500 ms after the button is released. The pcb uses the outputs from the remote control module so is an add-on to the original facility. Provision has been made for a S/M button (LR call it the Dynamic button when fitted) to use the 3rd RC channel, which will be implemented tomorrow.

I have some spare pcbs so can make-up modules at cost if wanted, noting that a remote control facility is also needed to operate the gear-shift remotely. The pcbs have some design flexibility, catering for 4 inputs/outputs (the RC module I purchased has 4 channels) and can be built to switch to 0V as for this application or switch to 5V or 12V using triggers of 0V or 5V respectively.

Hi Gordon,I expected your RRS to have paddles, but it seems not. I'd be interested to know how useful you find the press-button "paddles".