Si board help

[zaxxe30]

So my tach and obc are not working. I was thinking it's my si board batteries but the service lights turn on and when I removed it looks like nothing was wrong I have included some pics


Sent from my iPhone using Tapatalk

[zaxxe30]

Bump. Come on people help me please


Sent from my iPhone using Tapatalk

[15Michaeljoseph]

SI board has nothing to do with the OBC. I think your problem is deeper than that. history of the issues? maybe unrelated


--Mike

[Gregs///M]

SI board has nothing to do with the OBC. I think your problem is deeper than that. history of the issues? maybe unrelated


--Mike

This is completely untrue. The SI board powers and controls the tach, temp, MPG, and OBC calculations.

To the OP, there is one obvious thing wrong with your SI board. Those batteries are around 30 years old. They need to be replaced.

We sell replacement refurbished SI boards with warranty and give you money back for your original Si board. Bavrest.com

[15Michaeljoseph]

This is completely untrue. The SI board powers and controls the tach, temp, MPG, and OBC calculations.

I should have been more clear. OP said OBC is 'dead', which to me means it's completely non-functional; no clock, no backlight, etc... and this obviously wouldn't be caused by the SI board. Sorry for the confusion... hence why I asked for some history, or more information, about the problems.





--Mike

[zaxxe30]

thanks everyone but i have fixedd it. Turned out to just be a fuse #21