https://www.dropbox.com/s/lf7uc8w0941f5wl/WD0001.pdf
INTRO NOTE: THIS IS NOT ABOUT KESSY, I DON'T HAVE KESSY NOR I WANT IT, BY ANY MEANS.
I would like to start my engine with a button. I mean, turn the key to ACC, one more click to IGN, but then the START phase would be a simple button, that sends the command to the starter. then I am fine in switching off the engine with the key, like I always do.
I have attached the wiring diagram, D is the Ignition/Starter Switch and J527 is the Steering Column ECU. ideally, my plan would be:
1) CUT the wire which is Terminal 50, so T6I/pin1. this would prevent the key from starting the engine;
2) TAP Terminal 15 on T6I/pin5 (or pin6, gotta check with multimeter), and wire it to one side of a simple button;
3) connect the other side of the button to the wire I cut on step 1), of course on J527 side, so T8af/pin1. this would make the button start the engine.
up to here it all works, at least in theory. the problem is that after the engine is started the button needs to be disabled, because it would fire the starter with the engine running. not cool. not that I would go there and press it intentionally, but better safe than sorry.
I did something similar to a Renault Clio more than 10 years ago and I figured it out, but I can't remember how. I think it involved a relay, that somehow uses Terminal 50 to disable the button.
I also have the feeling the Golf has much more electronics involved so any comment or hint would be appreciated.
INTRO NOTE: THIS IS NOT ABOUT KESSY, I DON'T HAVE KESSY NOR I WANT IT, BY ANY MEANS.
I would like to start my engine with a button. I mean, turn the key to ACC, one more click to IGN, but then the START phase would be a simple button, that sends the command to the starter. then I am fine in switching off the engine with the key, like I always do.
I have attached the wiring diagram, D is the Ignition/Starter Switch and J527 is the Steering Column ECU. ideally, my plan would be:
1) CUT the wire which is Terminal 50, so T6I/pin1. this would prevent the key from starting the engine;
2) TAP Terminal 15 on T6I/pin5 (or pin6, gotta check with multimeter), and wire it to one side of a simple button;
3) connect the other side of the button to the wire I cut on step 1), of course on J527 side, so T8af/pin1. this would make the button start the engine.
up to here it all works, at least in theory. the problem is that after the engine is started the button needs to be disabled, because it would fire the starter with the engine running. not cool. not that I would go there and press it intentionally, but better safe than sorry.
I did something similar to a Renault Clio more than 10 years ago and I figured it out, but I can't remember how. I think it involved a relay, that somehow uses Terminal 50 to disable the button.
I also have the feeling the Golf has much more electronics involved so any comment or hint would be appreciated.