disco 2 non starter

engine managment light on yesterday, today wont link to code reader, sls light on, temp gauge light on, no engine managment light or glow plug, cannot hear fuel pump wont start, is the ECu knackered!
had all fuses out checked relays cleaned all plugs etc tried everything poss,
can the fuel cut off cause problems or do i need to try and get a spare ecu?

Battery state? Earth issue? Not sure what the symptoms are of a tripped inertia switch, but I would reset it anyway. I assume you have checked for oil in the red ECU plug?

Bit of an update, found fuse F24 keeps blowing, 10 a inside, engine management any clues?

discodrivercumbria said:

Bit of an update, found fuse F24 keeps blowing, 10 a inside, engine management any clues?

Click to expand...

I'd be looking for some damaged insulation.

Where at? I’ve back tracked so much I’ve even lost myself!

No idea. Maybe @sierrafery will be able to suggest something.

Search for discovery 2 my 99 to my 03 electrical library and circuit diagrams 00 my rhd which will describe and show which cicuits fuse 24 supplies.

Feathers McGraw said:

No idea. Maybe @sierrafery will be able to suggest something.

Click to expand...

I was hoping he would show up, frustrating!!!!

weird one came out after my tea, keys in ignition, fog lights on!! turned ignition on they went off, no temp light on now either, does anybody think there is a bad earth somewhere?

discodrivercumbria said:

Bit of an update, found fuse F24 keeps blowing, 10 a inside, engine management any clues?

Click to expand...

Short circuit within the alternator, disconnect the small plug from it and see then, if the fuse will not blow with the alternator unoplugged you need a new one. If the fuse will blow this way too i'm affraid that the ECM is fubar

Took plug\connection out of the back of the alternator, what a struggle to do that, put new fuse in, re connected battery and she fired, still no throttle! Let her run as the blow air sus back up, then suddenly it stopped, looked at fuse 24 and it had blown replaced it and it did too, least it is looking level, so at a loss again,

So the alternator is ruled out, F24 is connected to the autobox ECU on autos and engine ECU too, if your's is auto unplug the autobox ECU and see then if still blows then the ECM is suspect

sierrafery said:

So the alternator is ruled out, F24 is connected to the autobox ECU on autos and engine ECU too, if your's is auto unplug the autobox ECU and see then if still blows then the ECM is suspect

Click to expand...

manual gearbox,
since i have had it,(January) it will be lucky if it has done 15 mile,
renewed a few parts,
ignition /steering lock to get on fob key
new in tank pump
new wiring harness,
had gearbox out new clutch etc,
then i have welded inner pass wing, so stripped out,
under bonnet fuse box out, battery tray out, headlight etc
total strip for rust proofing etc,
new battery

sierrafery said:

So the alternator is ruled out, F24 is connected to the autobox ECU on autos and engine ECU too, if your's is auto unplug the autobox ECU and see then if still blows then the ECM is suspect

Click to expand...

also had fog lihghts come on again rocked relays etc under bonnet then went out, then came on again, dont go off when you turn ignition on, go out when lights were turned on, could it be ignition harness? indicator stalk etc?

discodrivercumbria said:

also had fog lihghts come on again rocked relays etc under bonnet then went out, then came on again, dont go off when you turn ignition on, go out when lights were turned on, could it be ignition harness? indicator stalk etc?

Click to expand...

Much rain up where you are ? Or damp air in the mornings ?

Might be condensation starting a short across the back of the fuse/relay board ...

Dippypud said:

Much rain up where you are ? Or damp air in the mornings ?

Might be condensation starting a short across the back of the fuse/relay board ...

Click to expand...

well the car has stood with bonnet down, not closed !. no interior in, doesnt leak in as sunrrof done and was not wet before, i have steamed it off ages ago, has been raining lately! where hasnt it? lol

As long as F24 keeps blowing with alternator unplugged and it's manual the problem is on that circuit to the ECU or the ECU is fubar, you should rule it out

sierrafery said:

As long as F24 keeps blowing with alternator unplugged and it's manual the problem is on that circuit to the ECU or the ECU is fubar, you should rule it out

Click to expand...

ECU, it started yesterday, ran 4-5 mins then stopped, will ecu show symptoms like that?

Yes it can

well we got to bottom of the problem! the loom had rubbed through, just got to fix it now drivers side under fuse box,