I’m still new to car modding and I have a small project going around at the moment. I bought an instrument cluster that fits my car but from a newer model, just to clear things out it fits with same harness but since this cluster is from a newer car it seems to not work. I looked up wiring diagram on google but with no avail. I need help with tricks to find basic features like RPM, speedo, fual, and engine temp.
Note: I opened the cluster and looked for the positive and negative terminal on the PCB but they are not printed.
Any help is appreciated.