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Bulb not illuminating on Dash - Has it been removed - how can I check...?

13422 Views 26 Replies 10 Participants Last post by  Ian D
Hi,

Car has been into Jaguar today as ABS light not illuminating.

ABS problem found and repaired which was a Front Wheel Sensor.

The Dash Light however does not illuminiate still.

I have done the bulb check as advised by another member, holding down trip switch on end click of ignition...and no light coming on during tests..

Could the bulb have been removed? How can I check?

Does anyone have any instructions on how to remove the front fascia to get to the dials to remove the speedo?

Need this resolving desperately now...

Thanks
Mike
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If it went in for light not working and it still isn't working they haven't done the job so take it back. How did you know the ABS wasn't working ?
I was getting the ABS grating when braking - they have replaced the sensor and the grating has gone..!

I am suspicious if this was an old problem and the previous owner removed the bulb...

I have contacted Jaguar who have said more detail analysis is required and they wont know how much it will cost until this is completed...!!

They told me that the corrective action was to replace the sensor and now they are saying more work is required which is chargeable..How does that work!!
i hope i'm not one to be bearer of bad news, but i'm pretty sure all dash bulbs are smd leds (small micro diode???) and not normal tiny filament bulbs. So it would have to be taken apart to solder in a new led (i'm quite sure because i wanted to change mine to blue bulbs and could not cos of this reason)

But anyway its really easy to take out the speedo clocks..

Firmly pull the surround which covers your dials which also houses the central heater vents (lower and pull out your steering wheel first) you will then see 4 screws holding the black cover in place and 1 i think for your right heater vent. Once removed you will see another 4 screws holding the speedo cluster in place, remove those. Then just 2 wiring blocks on the rear of the cluster, press the notch in on the tabs and slide the locking tab and the plug will come out. Obviously refitting is reversed to removal.

Good luck

Ryan
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Is anyone able to confirm whether or not the dash bulbs are filament or LED?

What is strange is that the light does not come on even for the Dash Light Check...

Jaguar have confirmed that the ABS is all fine and to be fair the ABS is not activating like it once was...!

I think removing bulbs is an easy way to cover up issues and I hope that this is now the case with this.

I have paid for the underlying issue solving so all should now be OK...

Mine is a 2002 '51' Plate X Type Sport 3.0 AWD
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I have paid for the underlying issue solving so all should now be OK...
Is it not impossible for the ABS to function 'as intended'/normally, yet, the functioning of the warning light to be defective?

Only 'half a job', so far!
Jagryan85 is right regarding the LED's in the instrument panel, as JEPC lists the instrument panel as one sealed unit. You're going to have to remove the panel and then find the ABS LED making sure there is no dry joints first. If no joy, you're going to have to some how replace it.
You're going to have to remove the panel and then find the ABS LED making sure there is no dry joints first. If no joy, you're going to have to some how replace it.
Woa, the case for 'attacking' the cluster is not proven yet! Diagnostics, diagnostics, diagnostics.
What is strange is that the light does not come on even for the Dash Light Check...

Jaguar have confirmed that the ABS is all fine and to be fair the ABS is not activating like it once was...!

Mine is a 2002 '51' Plate X Type Sport 3.0 AWD
I suppose it is possible that someone has masked off the led to hide the abs problem before selling the car. If the bulb check doesn't illuminate it and (presumably) there are no ABS faults registered following the repair then it must be down to the illumination system. However if the led had been removed or was faulty wouldn't that lead to a fault code itself?

Ian C
Speedo Cluster Removed..
How do I remove the Dial Needles to look at the circuit board..?
Thanks
agree as above either masked up or someones, poked it out with a screwdriver (i hope thats not the case for you) it will just be a small led which would need soldering onto the circuit board. Would not have a clue where to source one tho. I dont think a bulb would throw up a mil light, i know jaguar like being technical but not that technical haha! Anyway, thats what the bulb check if for :D

Ryan
theres the old technique of the fork...i dont suggest you use that method tho! :D
I have shined a torch the reverse way from the fascia down to the circuit and on other lights you can see the glow of the torch on the LED, however on the ABS you cannot.

There is a plastic tube that goes over the led..maybe something stuck up that...but cannot get to it..!!
Ok, all put back together and no further forward. In the end I could not split the circuit board from the front fasica with the dials.
I could see the micro LED and all looks ok with the board.

There is a plastic intermediate part between the LED's and the front where the light shines through and the only thing I can think off would be if something was up the 'tube' that shines the LED to the fasica. How this can be however I do not know as it would be a very hard job to do this...

My issue now is this...

I did the initial light check, second click of ignition and hold the trip button down. All the lights lit up apart from the ABS..is this correct?

I assume this check has nothing to do with the actual functioning of the engine items but simply a bulb/LED check.
Is my understanding of this correct?

If it is just a bulb/LED check and the ABS does not illuminate, does that mean the actual the Speedo Unit is faulty?

Don't want to spend anymore money on this if I can help it!!
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Of course, it could be a possibility that the unit is faulty. But you need to inspect further into the unit and check the led with the check function (and yes it should light up with the bulb check, just checked this myself) Do this so you are sure before you go start paying lots of pennys.

You could try out another one to test, although your engine will not start until the unit has been programmed to work with the cars ecu
You could try out another one to test, although your engine will not start until the unit has been programmed to work with the cars ecu
Ohh! Did not know that the unit would need to be programmed with ecu to work...I was hoping to get a replacement from fleabay...!

I have done the check function and nothing from the ABS light...
In that case you could suspect a faulty unit, assuming that your abs works when u slam on? Unfortunately, the unit has to be programmed with your car, this is why every X has its own personality :D You would have to source a replacement to check, off the same fuel as your car(maybe another member?) and go from there...
I did the initial light check, second click of ignition and hold the trip button down. All the lights lit up apart from the ABS..is this correct?
I've just tried this with mine (2006 Sport Premium) and the ABS light does light up (along with every other bulb).
You could always find another very friendly forum member and drive over to them and swap over their complete speedo cluster with yours and try the bulb test again to see if the ABS bulb lights up and check your cluster on their car to check the same.

If their cluster ABS light works on your car you'll know it needs a new cluster etc, but if it doesn't light up and yours does on the donor car then you'll know you have a wiring fault.

Good luck

Dave
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