Please ignore my prvious posts...Did a trip meter test and on came the engine light, but it still does not come on at position II or startup phoned a diagnostic and car electrical guy and he says he never heard of this problem and will ask about... at the moment thinking either wire from ecu cut or not connected or faulty ecu.

Could resetting the ecu by disconnecting negative terminal on battery possibly make it come on? Are there any fuses or relays could have gone that is stopping the engine light to come on?

Any advice would be greatly appreciated.

Thanks

It could be that some one had cut the wiring or disabled it , maybe it was showing all the time. If thats the case then you would need to find where the feed comes from.

When you did the dash test does it throw any DTC error codes up?

Thanks

Preee

First car I have owned with a ecu...what is a DTC error? Are there codes for them? Will nip out now and see what comes up and report back.

Ok there are loads of different letters and numbers that came up when I kept pressing not sure if you need to know them (let me know) but it came up with DTC none.

Again not sure what that means? Do all the other letter and number sequences shoe problems or is the display of DTC none mean there are none?

The letters and numbers are purely hexadecimal data from the cluster and are of no relevance.

To check for DTC codes properly you need a dedicated code reader plugged into to cars data port.

Thanks

Stoney871

Is the report of DTC none a encouraging sign though? Or if the wire is diconnected would there be no DTC errors reported on the dash anyway?

Will be getting it hooked up soon hopefully since trying to sort out the ecu light thing...The car as just had new clutch, flywheels and injectors thinking may have been disconnected before this work was done to hide these problems.

The fact that there are no DTC shown on the dash doesn't guarantee that there aren't faults.

I had a engine system fault warning come up on the dash display on my car a few months ago but with no codes on the dash.

On checking at a garage with a dedicated diagnostic computer it was a low fuel pressure warning (dirty fuel filter).

It goes to show that the dash DTC check only shows very limited data and IMHO is of very little use other than to check that the dash cluster works.

I would get the problem checked out before you are next due a MOT as a non functioning light on the dash is now a MOT failure.

Thanks Again

Stoney871

I was just saying to the OH "glad we don't live in US it would fail it's MOT (inspection) there if the engine light does not come on"!!!!!

Think my only option now is to have all wiring checked, will order Haynes today and try and have a go myself otherwise it's off to the electrical guy, I can see the £210 a year saving on tax I am getting with this car as opposed to my last will quickly be eaten.

Diolch yn fawr guys...still if anyone as any info on where I should be checking...what color wire, common areas people usually cut or disconnect from... I would be very grateful.

I am puzzled what the problem is here. If the engine light illuminates under dash test then surely it cannot be disconnected or a failed LED. Are you sure it is supposed to illuminate when the ignition is on and not just when there is an engine management problem? If it is just supposed to illuminate to show it is working I don't think it would fail an MOT. It could be that just disconnecting the battery and reconnecting it will solve it.

Thanks

Feet Under The Table

The owners manual that comes with the car does say it should illuminate when the ignition is switched on. It should extinguish as soon as engine starts. It's odd that it is the only instrument light listing that does not say 'illuminates at position II briefly'...maybe it happens that fast I am just not noticing it...will pay very close attention and try not to blink!

I know it's a puzzle, my dad who's an electrician and knows a thing or two about cars; my mechanic and the specialist car electrical guy I've spoken to have all said what you have that if it was disconnected it would not illuminate under dash test and they are puzzled as to what it could be. Will try disconnecting negative if no joy with the not blinking test.

Will let you all know how it goes

You have proved that the LED works with the dash test so I would not waste any time or money on what is probably a misprint in the manual. The time to worry is when the light illuminates with the engine running.