I just recently purchased a UKDM crx si speedometer cluster to put in my 89 crx hf. When I plugged it up, I got the: temp gauge, fuel gauge, and Speedo to work, but the tach did not. I am pretty sure it will work, I just need to find some schematics or wiring diagram for the speedo! When I turn my right turn signal the green arrow doesn't blink, but the blue high beam symbol flashes. I know it is probably a simple wiring problem. Can anyone help??????

 

sorry but i'm pretty sure most people will tell you its trial and error. you have to try and match them up. unless someone has done this recently and recorded every step of switch