Obc/tach/ not working as well as interior/dash lights.

[vitiokas95]

Need some help, I had RPM and eco working fine but was trying different cluster (which was 6k rpm) and when I connected this other cluster nothing was working at all. I assume it was bad. Problem is that when I connected my old cluster, RPM and eco does not work anymore. Checked fuses, they were good, but I still replaced it. Still nothing. This is on my S50 swap. I also have lap timer connected and it does show RPM. I noticed that I have wire spliced into black wire on blue connector which runs to my lap timer brain.

Any ideas what could went wrong when I connected this bad cluster?

[Gregs///M]

If your SI board is not refurbished, just unplugging it from the car for a few seconds will be enough to drain what little life if left in the batteries. Once that happens, your tach and MPG gauge will no longer work.

[vitiokas95]

If your SI board is not refurbished, just unplugging it from the car for a few seconds will be enough to drain what little life if left in the batteries. Once that happens, your tach and MPG gauge will no longer work.

I have 2 clusters now. Both don't work. Only my original one, when I plug in blue connector while car is running, eco needle jumps for one second and goes dead again. It is race car and most of time battery is disconnected. I guess I should send one of the clusters for refurbish to you. I will PM you.