I'm new to this forum and looking for some help. I am a novice at electronics, so please excuse me if I don't understand all the terminology
I have a instrument/speedometer cluster from a car that I am looking to simulate bit by bit. I've tackled a few of the signals and managed to get them working. I want to tackle bit by bit so i don't get confused. I need help with the following pictured diagram.
It shows two switches. The left switch that has up down, left right and enter buttons. The signals from the switch somehow go to the instrument cluster on pin 2 and pin 3. The pin description from the manufacturer is as follows:
Pin 2: Ignition on, enter, top and back switches on steering pad switch assembly not pushed = 4.8 to 5.2 V
Pin 3: Ignition on, up, down, right, and left switches on steering pad switch assembly not pushed = 4.8 to 5.2 V
And then there is the ODO/TRIP switch on the right. This switch connects to pin 4, 25 and 26. The pin descriptions for these are:
Pin 4:
Ignition on, ODO/TRIP switch not pushed = 4 to 6 V
Ignition on, ODO/TRIP switch pushed = Below 1 V
Pin 25:
Ignition on, up switch and down switch of trip switch not pushed = 4 to 6 V
Ignition on, up switch or down switch of trip switch pushed = Below 1 V
Pin 26: Ground for trip switch
Basically, I am looking for help on how I can simulate or re-create these signals so that I can send it to the cluster. Can anyone kindly explain to me how these switches are working and possibly how I can simulate these signals to the cluster?
Thank you
I have a instrument/speedometer cluster from a car that I am looking to simulate bit by bit. I've tackled a few of the signals and managed to get them working. I want to tackle bit by bit so i don't get confused. I need help with the following pictured diagram.
It shows two switches. The left switch that has up down, left right and enter buttons. The signals from the switch somehow go to the instrument cluster on pin 2 and pin 3. The pin description from the manufacturer is as follows:
Pin 2: Ignition on, enter, top and back switches on steering pad switch assembly not pushed = 4.8 to 5.2 V
Pin 3: Ignition on, up, down, right, and left switches on steering pad switch assembly not pushed = 4.8 to 5.2 V
And then there is the ODO/TRIP switch on the right. This switch connects to pin 4, 25 and 26. The pin descriptions for these are:
Pin 4:
Ignition on, ODO/TRIP switch not pushed = 4 to 6 V
Ignition on, ODO/TRIP switch pushed = Below 1 V
Pin 25:
Ignition on, up switch and down switch of trip switch not pushed = 4 to 6 V
Ignition on, up switch or down switch of trip switch pushed = Below 1 V
Pin 26: Ground for trip switch
Basically, I am looking for help on how I can simulate or re-create these signals so that I can send it to the cluster. Can anyone kindly explain to me how these switches are working and possibly how I can simulate these signals to the cluster?
Thank you