Custom Dash Cluster

[kazi]

(10-17-2017 07:06 PM)Ivan141 Wrote:  I stripped a couple of clusters and they are really low-tech. Nothing complicated enough
to warrant such drastic measures as replacing the whole unit.

Basically it goes like this (from lightbulb back to power and ground):
-Lightbulb
->Bulb holders with contact 'wings'
->Flexible circuit board
->Connector
->Switched 12V (from tail relay and tail fuse)
->Rheostat -> Ground

-You can visually check the circuit board, you can measure the resistance from bulbholder to connector.
-You can check 12v at the connector
-You can check if there is continuity to chassis ground from the connector
-You can check if 12V reaches the PCB.

That is really all there is to it. If the flexiPCB isnt borked and you have power + ground then the illumination should work.
I've had a rheostat go bad once which I fixed by bypassing it to a chassis ground, I suspect that whatever is wrong with
your cluster (if it's the cluster and not the in-car wiring) can be fixed with an equally simple measure.

Wouldn't call it drastic to be honest. If it was a standard concourse car then yes it would be. But the matter is, OEM clock in mine (lighting wise) doesn't work. And the stuff that does work is pretty inaccurate. I use the car for fast road and track so want the dash to read as accurately as possible. If that means making a dash out of Defi gauges then that it is. And even if they did work properly then the modification side alone would make me want to do this.

Do you have any wiring diagrams form the clocks and where to check them?