Temporary/timed warning lights on dashboard

Hey all.

In the process of fault finding behind the dash I've managed to knock out some of my warning lights. I believe I shorted them out. Engine management and oil are the obvious ones that aren't working. It's not the bulbs. Battery light and abs light still works.

Is there a relay somewhere that controls the lights that come on for a few seconds? Is it built in to the circuitry of the instrument panel?

Help appreciated

Checked all the fuses? some under the dash and some near the battery

Riccy wrote: Checked all the fuses? some under the dash and some near the battery

Dash fuses fine. Wouldn't have thought the fuses by the batter would impact it but I'll check to be sure

Nope no underbonnet fuses relate to this

sorry for the obvious question, but it had to be asked. Check earthing and connections, otherwise its a spare part needed.

J999pre will probably have a spare dash cluster to swap in. Mileage displayed will correspond to the used part there, but it should work.

Riccy wrote: sorry for the obvious question, but it had to be asked. Check earthing and connections, otherwise its a spare part needed.

J999pre will probably have a spare dash cluster to swap in. Mileage displayed will correspond to the used part there, but it should work.

So do you reckon the instrument panel has internal resistors or some such which controls the temporary light up as opposed to it being a separate part or from the ECU?

Yes it has a PCB sort of arrangement and has IC's and processors, so easily damaged part. Like i say, the mileage is stored in the dash cluster somehow, therefore it must be more than just lights and wires to them. I doubt the ECU would be damaged or the car would have bigger issues.

have you had a code reader on to see if that works?

Riccy wrote: Yes it has a PCB sort of arrangement and has IC's and processors, so easily damaged part. Like i say, the mileage is stored in the dash cluster somehow, therefore it must be more than just lights and wires to them. I doubt the ECU would be damaged or the car would have bigger issues.

have you had a code reader on to see if that works?

Ah great that would be a handy easy fix then. Just a shame to lose my 66k on the clock

I do but there's no faults showing. MOT is out I was planning to put it in to the garage tomorrow. Typical really

kirkynut wrote: I'm not sure but the ecu might store the mileage. So a replacement might show your car's mileage.

Kirkynut

Nope, my mileage (km) was very much improved after changing the cluster.
Pictures: www.bigjimny.com/index.php/forum/8-my-ji...kuza?start=84#203590
might be different on older cars though, mine is a 2005. the cluster is 2012.
Could be there is also a milage read out from the ECU that shows the real mileage, but that does not update the cluster mileage.

Brake warning light did not shut down before, and after changing the cluster more lights will shine for a test first few seconds after turning ignition on. Can hear relays clicking on - off corresponding to the warning lights as well now.

The bulbs are ok. It's possible I've burned the circuitry in the green plastic on the back of the cluster. I think trying a new cluster is the easiest way. Shame I don't have a friend with one I could borrow but I guess if I buy one and it doesn't cure it I can try to sell it on.

I can live without a management light but the oil light is also missing which is the potentially worrying and expensive issue ...

I measured the signals on the connectors into the cluster to find they were all there and correct before buying a new one..
It is all there in the FSM, but the wiring inside the cluster is more difficult to find.