Astra, Corsa, Zafira, Meriva, Adam, Agila, Combo
I have a Zafira B design. It came with the standard hazard light switch module. I have retro fitted the 4 button switch and all has refitted fine.
The question I have is how to make the switches work. I have metered between both ignition live pin 12 and ground pin 2 back to every pin...