Hi all,
The circuit below is for the steering wheel buttons on my car. I'm interested in the buttons between pins 1 and 6 and wondering what they might be connected to externally to the steering wheel. Yes they are just switching in various resistances but is there any reasoning behind the resistor values and why is RH (4.3K) so much larger then the rest.
You might ask, why the interest. Well, the vehicle does not remember that SWH (LFA) was pressed between engine restarts. Meaning each time I restart the vehicle I have to press this button. So I was going to install a relay and have it put 7.93K across pins 1 & 6 for a couple of secs when the engine is started.
TIA
The circuit below is for the steering wheel buttons on my car. I'm interested in the buttons between pins 1 and 6 and wondering what they might be connected to externally to the steering wheel. Yes they are just switching in various resistances but is there any reasoning behind the resistor values and why is RH (4.3K) so much larger then the rest.
You might ask, why the interest. Well, the vehicle does not remember that SWH (LFA) was pressed between engine restarts. Meaning each time I restart the vehicle I have to press this button. So I was going to install a relay and have it put 7.93K across pins 1 & 6 for a couple of secs when the engine is started.
TIA