Half of the lights in my instrasument cluster is off

[Jonas_R]

So half of the lights in my instrument cluster if off.

I have checked them all and changed the defective ones, but still about half are dead.

Are the light bulps on the same pcb line?

So maybe I can just add some wires instead if one of the pcb lines are dead?

Or could I move tacho, fuel gauge, temp gauge, rpm gauge over to my old instrumenter cluster? I currently have a RS2 instrument cluster.

[Taavi]

Have a good look over the PCB. Probably there is just a small crack on the track that can easily be soldered.

[M_GORDON]

One day a led make a shortcircuit and my dashboard goes only the middle.

Check ALL lamps etc.

[mdz]

IIRC each side of cluster had it's own ground connection for illumination. As Taavi said, check PCB for cracks and cold joints.

[johne]

I had the same problem and it was a crack in one of the pcb lines as it ran across the bottom. Sorry I didn't take any pictures. I just soldered a wire to join the track but not at the actual break, further away where it was easier to find exposed track to solder to.

John

[Jonas_R]

So I checked the PCB and it looks fine. Also tried with a different instrument and same problem.

So if the blue and yellow plug have their own ground, maybe this could be the culprit?

But does both sides share 12v?

[Jonas_R]

Any ideas?

[valjo]

i had same problems. i find out that i have cold joint in dash conector ....

[andy10v]

Have you tried adding temp ground or power to see if either fix it and then check back?

[Jonas_R]

i had same problems. i find out that i have cold joint in dash conector ....

By dash connector do you mean the blue og yellow plug or the connector soldered to the PCB?

[Jonas_R]

Have you tried adding temp ground or power to see if either fix it and then check back?

No because I'm not sure what pin is ground and what is +12V at the blue connector.

[valjo]

By dash connector do you mean the blue og yellow plug or the connector soldered to the PCB?

yes

[Jonas_R]

Yes what?

[valjo]

I dont remember exactly color, but i advise you to check both or all connectors for poor joints

[Jonas_R]

Ok so not the plug but the connector on the dash. Problem is that I tried with another instrument cluster and it had the same fault. So I dont think that two instrument clusters will have the exact same error.