83 venture gauge cluster problem

[Karl C.]

I am being told that either the gauge cluster is bad or the brain that controls it. I have to wonder which part "they" mean by "brain". I am assuming the block box under the fairing headlight assembly. Can anyone elaborate on this? The lights turn on, signals work, but no gas gauge, tach, speedo etc...

 

thanks for any and all help.

[dingy]

Probably referring to the CMU unit that displays the start up check list.

 

There is a lot of electronics under that display.

 

It sets between tach and speedometer.

 

Your speedometer is a mechanical device. Would not be affected by an electronic failure.

 

Do you mean the lights illuminating speedo?

 

Gary

[bkuhr]

Like Dingy said ODO mechanical, Tach and CMS both powered from15A signal fuse. Would start there

[Karl C.]

thanks for the feedback folks... will be checking this out tomorrow..