Dead tach :(

[aintnothang]

My tach and obc(now euro clock) do not work. I replaced the si batteries because the service lights would stay on and it took care of that problem. Bad si board? Is this a ground issue? Where would I check? It's just annoying not having the tach working...

[325_e30]

My tach and obc(now euro clock) do not work. I replaced the si batteries because the service lights would stay on and it took care of that problem. Bad si board? Is this a ground issue? Where would I check? It's just annoying not having the tach working...

Does your radio work? If it doesn't, it's your fuse. Happened to me the other day.

[aintnothang]

Radio works.

[jlevie]

As there any evidence of leakage from the batteries onto the SI board? If so, replacing the batteries may have been a wasted effort.

[aintnothang]

As there any evidence of leakage from the batteries onto the SI board? If so, replacing the batteries may have been a wasted effort.

No.

[Ceeker]

check the connection of the plug to the cluster. Make sure it is snug. once together. see if it comes on..give the top of the dash a good few whacks to see if it kicks in. Since you changed the batteries and as mentioned the board isn't compromised then your connection might be loose.

[Gregs///M]

Check this.

http://www.r3vlimited.com/board/showthread.php?p=3676570

Also replace fuse 10, 12, and 21.